Dell Pro 16 Plus Owner's Manual
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Dell Pro 16 Plus Owner's Manual

Dell Pro 16 Plus Owner's Manual

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Dell Pro 16 Plus
PB16255
Owner's Manual
Regulatory Model: P135F
Regulatory Type: P135F004
May 2025
Rev. A01

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Summary of Contents for Dell Pro 16 Plus

  • Page 1 Dell Pro 16 Plus PB16255 Owner's Manual Regulatory Model: P135F Regulatory Type: P135F004 May 2025 Rev. A01...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2025 Dell Inc. or its subsidiaries. All rights reserved. Dell Technologies, Dell, and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners.

  • Page 3: Table Of Contents

    Left......................................8 Front....................................... 9 Top......................................10 Bottom....................................11 Service Tag...................................11 Battery-charge status light............................. 12 Chapter 2: Set up your Dell Pro 16 Plus..................13 Chapter 3: Specifications of Dell Pro 16 Plus................15 Dimensions and weight..............................15 Processor..................................... 15 Chipset....................................16 Operating system................................16 Memory....................................17 Ethernet....................................17...
  • Page 4 After working inside your computer........................39 BitLocker..................................... 39 Recommended tools................................. 39 Screw list.....................................39 Major components of Dell Pro 16 Plus.......................... 41 Chapter 5: Removing and installing Customer Replaceable Units (CRUs)........44 SIM-card tray (optional)..............................44 Removing the SIM-card tray (optional).........................44 Installing the SIM-card tray (optional)........................45 Base cover..................................
  • Page 5 Installing the Smart card reader (available only on select configurations)............72 Battery support bracket..............................73 Removing the battery support bracket........................73 Installing the battery support bracket........................74 Heat sink....................................75 Removing the heat sink ............................75 Installing the heat sink..............................76 System board..................................77 Removing the system board............................. 77 Installing the system board............................
  • Page 6 Clearing system and setup passwords........................146 Chapter 9: Troubleshooting......................147 Handling swollen rechargeable Li-ion batteries......................147 Locating the Service Tag or Express Service Code of your Dell computer ............. 147 Dell SupportAssist Pre-boot System Performance Check diagnostics.............. 148 Running the SupportAssist Pre-Boot System Performance Check.............. 148 Built-in self-test (BIST)..............................148...

  • Page 7: Chapter 1: Views Of Dell Pro 16 Plus

    Views of Dell Pro 16 Plus Right Figure 1. Right view 1. microSD-card slot Reads from and writes to the microSD-card. 2. Nano-SIM card slot (optional) Insert a SIM card to connect to a mobile broadband network. NOTE: Availability of the SIM card slot depends on the region and configuration ordered.

  • Page 8: Left

    ● Solid amber — The battery charge is critically low. A low battery state is approximately 30 minutes or less of battery life remaining (Amber 590 nm +/- 3 nm). 5. smart card reader slot (optional) Using smart card provides authentication in corporate networks. Views of Dell Pro 16 Plus...

  • Page 9: Front

    A camera enables you to video chat, capture photos, and record videos. 6. Camera-status light Turns on when the camera is in use. 7. Right microphone Provides digital sound input for audio recording and voice calls. Views of Dell Pro 16 Plus...

  • Page 10: Top

    Enables NFC-enabled devices to connect to your computer and supports data transfer across the devices. 4. Touchpad Move your finger on the touchpad to move the mouse pointer. Tap to left-click and two fingers tap to right-click. Views of Dell Pro 16 Plus...

  • Page 11: Bottom

    1. Speakers (2) Provide audio output. 2. MyDell QR Code MyDell is your hub for content personalized to your Dell Pro 16 Plus, including videos, articles, manuals, and easy access to support. 3. Service Tag label The Service Tag is a unique alphanumeric identifier that enables Dell service technicians to identify the hardware components in your computer and access warranty information.

  • Page 12: Battery-Charge Status Light

    Figure 6. Service Tag location Battery-charge status light The following table lists the battery-charge status light of your Dell Pro 16 Plus PB16255. Table 1. Battery-charge status light behavior  Power source LED behavior System power state Battery charge level AC adapter...

  • Page 13: Chapter 2: Set Up Your Dell Pro 16 Plus

    ● If connected to the Internet, sign-in with an existing Microsoft account or create an account. If not connected to the Internet, create an offline account. ● On the Support and Protection screen, enter your contact details. 3. Locate and use Dell apps from the Windows Start menu—Recommended. Set up your Dell Pro 16 Plus...
  • Page 14 Table 2. Locate Dell apps  Resources Description Dell Optimizer is an application that is designed to enhance computer performance and productivity by optimizing settings for power, battery, display, collaboration touchpad, and presence detection. It also provides access to applications purchased with your new computer.

  • Page 15: Chapter 3: Specifications Of Dell Pro 16 Plus

    The weight of your computer depends on the configuration that is offered. Processor The following table lists the details of the processors that are supported in your Dell Pro 16 Plus. Table 4. Processor (For computers shipped with AMD Ryzen AI 300 series)  Description...

  • Page 16: Chipset

    Not applicable Not applicable Up to 16 Up to 16 (NPU) Performance TOPS TOPS Chipset The following table lists the details of the chipset that is supported by your Dell Pro 16 Plus. Table 6. Chipset  Description Values Chipset Integrated in the processor Processor ●...

  • Page 17: Memory

    ● 16 GB: LPDDR5X, 7500 MT/s ● 32 GB: LPDDR5X, 7500 MT/s ● 64 GB: LPDDR5X, 7500 MT/s Ethernet The following table lists the wired ethernet Local Area Network (LAN) specifications of your Dell Pro 16 Plus. Table 8. Ethernet specifications  Description Values Model ●...

  • Page 18: External Ports And Slots

    M.2 cards, search in the Knowledge Base Resource at Dell Support Site. Wireless module The following table lists the Wireless Local Area Network (WLAN) module that is supported on your Dell Pro 16 Plus. Table 11. Wireless module specifications  Description Values Model number...

  • Page 19: Wwan Module

    WWAN module The following table lists the Wireless Wide Area Network (WWAN) module that is supported in your Dell Pro 16 Plus PB16255. NOTE: The WWAN module is available only on certain configurations and in certain regions.

  • Page 20: Audio

    For instructions to find your computer's International Mobile Equipment Identity (IMEI) number, search in the Knowledge Base Resource at Dell Support Site. Audio The following table lists the audio specifications of your Dell Pro 16 Plus. Table 13. Audio specifications  Description Values Audio controller...

  • Page 21: Keyboard

    Capacity One M.2 2230 self-encrypting drive PCIe Gen4 NVMe, up to 64 Gbps Up to 1 TB Keyboard The following table lists the keyboard specifications of your Dell Pro 16 Plus PB16255. Table 15. Keyboard specifications  Description Values Keyboard type ●...
  • Page 22 Operating system Context menu behavior. Fn + Esc Toggle Function key lock Fn + PgUp (cursor up) Scroll up the document or page Fn + PgDn (cursor down) Scroll down the document or page Specifications of Dell Pro 16 Plus...

  • Page 23: Camera

    Camera The following table lists the camera specifications of your Dell Pro 16 Plus. Table 18. Camera specifications  Description Option 1 Option 2 Number of cameras Camera type RGB camera RGB + IR camera Camera location Front camera Front camera...

  • Page 24: Fingerprint Reader (Optional)

    Fingerprint reader (optional) The following table lists the specifications of the optional fingerprint-reader of your Dell Pro 16 Plus. Table 20. Fingerprint reader specifications  Description Fingerprint reader on power button FIPS 201-certified fingerprint reader on palmrest Sensor technology Capacitive Capacitive...

  • Page 25: Power Adapter Requirements (For Computers That Are Shipped With A 3-Cell, 45 Wh Battery)

    3-cell, 45 Wh battery) NOTE: If you did not purchase the Dell-branded power adapter that is recommended for your computer, ensure that the power adapter you use meets the following requirements. The following table lists the power adapter requirements for your Dell Pro 16 Plus.

  • Page 26: Battery

    ExpressCharge mode must also be enabled in the BIOS Setup screen. Select Power > Battery Configuration > ExpressCharge, then press Enter Battery The following table lists the battery specifications of your Dell Pro 16 Plus. Table 24. Battery specifications  Description Option one...
  • Page 27 CAUTION: Dell recommends that you charge the battery regularly for optimal power consumption. If your battery charge is completely depleted, connect the power adapter, turn on your computer, and then restart your computer to reduce the power consumption.

  • Page 28: Power Requirements (For Computers That Are Shipped With A 3-Cell, 45 Wh Battery)

    72 Watts in order to achieve the maximum charging speed. This computer supports USB Power Delivery (PD) fast charging. Display The following table lists the display specifications of your Dell Pro 16 Plus. Table 25. Display specifications  Description...

  • Page 29: Gpu-Integrated

    (maximum) Anti-glare vs glossy finish Anti-glare Anti-glare Anti-glare GPU—Integrated The following table lists the specifications of the integrated Graphics Processing Unit (GPU) supported by your Dell Pro 16 Plus. Table 26. GPU—Integrated  Controller Memory size Processor AMD Radeon 740M Graphics...

  • Page 30: Hardware Security

    Smart card reader Contactless smart card reader This section lists the contactless smart card reader specifications of your Dell Pro 16 Plus. This module is only available in computers shipped with smart card readers. Table 28. Contactless smart card reader specifications ...
  • Page 31 Read UUID and APDU Exchange (ISO7816) ISO14443B Read UUID and APDU Exchange (ISO7816) Sony FeliCa Read UUID only Legacy iClass (ISO15693) Read UUID only Mifare Classic Read UUID only Low Frequency (125 KHz ) Not supported Specifications of Dell Pro 16 Plus...
  • Page 32 Mifare DESFire 8K White PVC card Mifare Classic 1K White PVC card NXP Mifare Classic S50 ISO card Mifare DESFire 2K Mifare Plus S 2K/4K Mifare Plus X 4K G&D idOnDemand - SCE3.2 144K Specifications of Dell Pro 16 Plus...
  • Page 33 Tap and do - NFC Forum Type 4 Tag - Mifare DESFire EV1Card 4K Tap and do - NFC Forum Type 4 Tag - Mifare DESFire EV1Card 8K Tap and do - ISO 15693 - Tag-it Plus Specifications of Dell Pro 16 Plus...

  • Page 34: Contacted Smart Card Reader

    NFC tag Supported HID I-code ISO card Contacted smart card reader The following table lists the contacted smart card reader specifications of your Dell Pro 16 Plus. Table 32. Contacted smart card reader specifications  Title Description Dell ControlVault 3 Plus Contacted...

  • Page 35: Comfortview Plus

    ● Take an extended break for 20 minutes every two hours. ● Look away from your display, and gaze at a distant object at 20 ft (609.60 cm) away for at least 20 seconds during each break. Specifications of Dell Pro 16 Plus...

  • Page 36: Chapter 4: Working Inside Your Computer

    CAUTION: You should only perform troubleshooting and repairs as authorized or directed by the Dell technical support team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. CAUTION: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer.

  • Page 37: Safety Precautions

    NOTE: If you are using a different operating system, see the documentation of your operating system for shut-down instructions. 3. Turn off all the attached peripherals. 4. Disconnect your computer and all attached devices from their electrical outlet. 5. Disconnect all attached network devices and peripherals, such as keyboard, mouse, and monitor from your computer. CAUTION: To disconnect a network cable, unplug the cable from your computer.

  • Page 38: Esd Field Service Kit

    NOTE: It is recommended to always use the traditional wired ESD grounding wrist strap and protective anti-static mat when servicing Dell products. In addition, it is critical to keep sensitive parts separate from all insulator parts while servicing the computer.

  • Page 39: Transporting Sensitive Components

    Transporting sensitive components When transporting ESD sensitive components such as replacement parts or parts to be returned to Dell, it is critical to place these parts in anti-static bags for safe transport. After working inside your computer About this task CAUTION: Leaving stray or loose screws inside your computer may severely damage your computer.
  • Page 40 Table 34. Screw list  Component Screw type Quantity Screw image Base cover Captive screws Battery M2x4 Captive screws Wireless antennas M2x2.5 4G WWAN-card bracket M2x2.5 Solid state drive bracket M2x3 M.2 2230 Solid state drive M2x4 M.2 2280 Solid state drive M2x4 M2x4 Speaker...

  • Page 41: Major Components Of Dell Pro 16 Plus

    Display-cable bracket M2x3 Fingerprint-reader bracket M2x3 Display panel M2x2 Display hinges M2.5x5 Hinge cap M2.5x3.5 M2x2 USH board Major components of Dell Pro 16 Plus The following image shows the major components of Dell Pro 16 Plus. Working inside your computer...
  • Page 42 Figure 10. Major components of your Dell Pro 16 Plus 1. Base cover 2. Battery Working inside your computer...
  • Page 43 21. Battery support bracket NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These parts are available according to warranty coverage purchased by the customer. Contact your Dell sales representative for purchase options.

  • Page 44: Chapter 5: Removing And Installing Customer Replaceable Units (Crus)

    Removing and installing Customer Replaceable Units (CRUs) The replaceable components in this chapter are Customer Replaceable Units (CRUs). CAUTION: Customers can replace only the Customer Replaceable Units (CRUs) following the safety precautions and replacement procedures. NOTE: The images in this document may differ from your computer depending on the configuration you ordered. SIM-card tray (optional) Removing the SIM-card tray (optional) Prerequisites...

  • Page 45: Installing The Sim-Card Tray (Optional)

    Figure 11. Removing the SIM-card tray Steps 1. Insert a SIM-ejector pin into the release hole to release the SIM-card tray. 2. Push the SIM-ejector pin to disengage the lock, and eject the SIM-card tray. 3. Slide the SIM-card tray out of the slot on the computer. Installing the SIM-card tray (optional) Prerequisites NOTE:...

  • Page 46: Base Cover

    Figure 12. Installing the SIM-card tray Steps 1. Align the SIM-card tray with the slot on the computer and carefully slide it in. 2. Slide the SIM-card tray into the slot, until it clicks into place. Next steps 1. Follow the procedure in After working inside your computer.
  • Page 47 Figure 13. Removing the base cover Removing and installing Customer Replaceable Units (CRUs)
  • Page 48 Figure 14. Removing the base cover Steps 1. Loosen the eight captive screws that secure the base cover to the palm-rest assembly. 2. Using a plastic scribe, pry open the base cover from the recesses that are located in the U-shaped indents at the top edge of the base cover near the hinges.

  • Page 49: Installing The Base Cover

    Figure 15. Disconnecting the battery cable 4. Press and hold the power button for five second to ground the computer and drain the flea power. Installing the base cover Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the base cover and provide a visual representation of the Installing procedure.
  • Page 50 Figure 16. Connecting the battery cable Figure 17. Installing the base cover Removing and installing Customer Replaceable Units (CRUs)
  • Page 51 Figure 18. Installing the base cover NOTE: If you have disconnected the battery cable, ensure to connect the battery cable. To connect the battery cable, follow step 1 in the procedure. Steps 1. Connect the battery cable to the battery-cable connector (BATT1) on the system board. 2.

  • Page 52: Battery

    ● Always purchase genuine batteries from Dell Site or authorized Dell partners and resellers. ● Swollen batteries should not be used and should be replaced and disposed properly. For guidelines on how to handle and replace swollen rechargeable Li-ion batteries, see Handling swollen rechargeable Li-ion batteries.
  • Page 53 Figure 19. Removing the battery Steps 1. Disconnect the battery cable from the battery cable connector (PBATT1) on the system board (if not disconnected earlier). 2. Loosen the four captive screws that secure the battery to the palm-rest assembly. 3. Remove the screw (M2x4) that secures the battery to the palm-rest assembly. 4.

  • Page 54: Installing The Battery

    Figure 20. Installing the battery Steps 1. If the battery cable was removed for replacing the battery, you must transfer the battery cable from the old battery to the replacement battery. For more information, see Installing the battery cable. 2. Align the screw holes on the battery with the screw holes on the palm-rest assembly. 3.

  • Page 55: Battery Cable

    Figure 21. Installing the battery Steps 1. If the battery cable was removed for replacing the battery, you must transfer the battery cable from the old battery to the replacement battery. For more information, see Installing the battery cable. 2. Align the screw holes on the battery with the screw holes on the palm-rest assembly. 3.

  • Page 56: Installing The Battery Cable

    Figure 22. Removing the battery cable Steps 1. Remove the battery cable from the routing guides on the battery. 2. Disconnect the battery cable from the connector on the battery. Installing the battery cable Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the battery cable and provide a visual representation of the installation procedure.

  • Page 57: Solid State Drive (Ssd)

    Figure 23. Installing the battery cable Steps 1. Connect the battery cable to the connector on the battery. 2. Align and route the battery cable through the routing guides on the battery. NOTE: When installing the battery cable, ensure that the cable is properly routed under the securing tabs. Next steps 1.

  • Page 58: Installing The M.2 2230 Ssd

    Figure 24. Removing the M.2 2230 SSD Steps 1. Remove the two screws (M2x3) that secure the SSD thermal shield to the palm-rest assembly. 2. Remove the SSD thermal shield off the SSD. NOTE: If the thermal pads get separated from the shielding cover or are adhered to the SSD while replacing the SSD, they must be adhered back to the SSD cover before reinstalling it to the computer.

  • Page 59: Removing The M.2 2280 Ssd

    Figure 25. Installing the M.2 2230 SSD Steps 1. Align and place the M.2 2230 SSD mounting bracket on its slot on the system board. 2. Align the notch on the M.2 2230 SSD with the tab on the M.2 2230 SSD slot. 3.

  • Page 60: Installing The M.2 2280 Ssd

    Figure 26. Removing the M.2 2280 SSD Steps 1. Remove the two screws (M2x3) that secure the SSD thermal shield to the system board. 2. Lift the M.2 2280 SSD thermal shield off the SSD . NOTE: If the thermal pads get separated from the shielding cover or gets adhered to the SSD while replacing the SSD, the technicians must readhere the thermal pad to the SSD cover before reinstalling it to the computer.

  • Page 61: Wireless Wide Area Network (Wwan) Card

    Figure 27. Installing the M.2 2280 SSD Steps 1. Align the notch on the M.2 2280 SSD with the tab on the M.2 2280 SSD slot. 2. Slide the M.2 2280 SSD into the slot on the system board. 3. Replace the screw (M2x3) that secures the M.2 2280 SSD to the system board. 4.

  • Page 62: Installing The 4G Wwan Card

    Figure 28. Removing the 4G WWAN card Steps 1. Loosen the captive screw that secures the 4G WWAN-card bracket to the 4G WWAN card and palm-rest assembly. 2. Lift the 4G WWAN-card bracket off the 4G WWAN-card. 3. Disconnect the antenna cables from the 4G WWAN card. 4.
  • Page 63 Figure 29. Installing the 4G WWAN card Steps 1. Align the notch on the 4G WWAN card with the tab on the 4G WWAN-card slot. NOTE: If you are replacing the WWAN card, ensure that the thermal pad is in place. NOTE: If the thermal pad is damaged, peel the thermal pad from the system board and replace it with a new thermal pad.

  • Page 64: Speakers

    Speakers Removing the speakers Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SIM-card tray (optional). 3. Remove the base cover. About this task The following images indicate the location of the speakers and provide a visual representation of the removal procedure. Figure 30.

  • Page 65: Installing The Speakers

    3. Remove the speaker cables from the routing guides on the palm-rest assembly. 4. Release the right and left speakers from the rubber grommets and lift the speakers along with the cable, off the palm-rest assembly. Installing the speakers Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 66: Fan

    2. Route the speaker cable through the routing guides on the palm-rest assembly. 3. Replace the four screws (M1.6x3) that secure the speakers to the palm-rest assembly. 4. Connect the speaker cable to the speaker cable connector on the I/O board. Next steps 1.

  • Page 67: Installing The Fan

    Installing the fan Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the fan and provide a visual representation of the installation procedure. Figure 33.

  • Page 68: Chapter 6: Removing And Installing Field Replaceable Units (Frus)

    To avoid any potential damage to the component or loss of data, ensure that an authorized service technician replaces the Field Replaceable Units (FRUs). CAUTION: Dell Technologies recommends that these procedures be performed by trained technical repair specialists. CAUTION: Your warranty does not cover damages that may occur during FRU repairs that are not authorized by Dell Technologies.

  • Page 69: Installing The Ush Board

    Figure 34. Removing the USH board Steps 1. Open the latch and disconnect the smart card reader cable from the USH board. 2. Open the latch and disconnect the USH board cable from the system board. 3. Open the latch and disconnect the NFC cable from the USH board. 4.
  • Page 70 Figure 35. Installing the USH board Steps 1. Align the screw holes on the USH board with the screw holes on the palm-rest assembly. 2. Replace the two screws (M2x2) that secure the USH board to the palm-rest assembly. 3. Connect the NFC cable to the connector on the USH board. 4.

  • Page 71: Smart Card Reader

    Smart card reader Removing the Smart card reader (available only on select configurations) CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SIM-card tray (optional).

  • Page 72: Installing The Smart Card Reader (Available Only On Select Configurations)

    Steps 1. Open the latch and disconnect the smart card reader cable from the USH board. 2. Gently peel the smart card reader cable from the palm-rest assembly. 3. Remove the four screws (M2x2.2) that secure the smart card reader to the palm-rest assembly. 4.

  • Page 73: Battery Support Bracket

    Steps 1. Align and place the smart card reader on its slot on the palm-rest assembly. 2. Replace the four screws (M2x2.2) that secure the smart card reader to the palm-rest assembly. 3. Adhere the smart card reader cable to the palm-rest assembly. 4.

  • Page 74: Installing The Battery Support Bracket

    Figure 38. Removing the battery support bracket Steps 1. Remove the two screws (M2x4) that secure the battery support bracket to the palm-rest assembly. 2. Lift the battery support bracket off the palm-rest assembly. Installing the battery support bracket Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 75: Heat Sink

    Figure 39. Installing the battery support bracket Steps 1. Align and place the battery support bracket on its slot on the palm-rest assembly. 2. Replace the two screws (M2x4) that secure the battery support bracket to the palm-rest assembly. Next steps 1.

  • Page 76: Installing The Heat Sink

    Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SIM-card tray (optional). 3. Remove the base cover. 4. Remove the battery. 5. Remove the M.2 2230 M.2.2280 SSD, as applicable. 6. Remove the display assembly. 7.

  • Page 77: System Board

    About this task The following images indicate the location of the heat sink and provide a visual representation of the installation procedure. Figure 41. Installing the heat sink Steps 1. Align and place the heat sink on the system board. 2.
  • Page 78 2. Remove the SIM-card tray (optional). 3. Remove the base cover. 4. Remove the battery. 5. Remove the M.2 2230 M.2.2280 SSD, as applicable. 6. Remove the display assembly. About this task The following image indicates the location of the connectors on the system board. Figure 42.
  • Page 79 Figure 43. Removing the system board Steps 1. Remove the screw (M2x2.5) that secures the WLAN bracket to the system board. 2. Lift the WLAN bracket off the palm-rest assembly. 3. Disconnect the antenna cables from the WLAN card. 4. Remove the two screws (M2x2.5) that secure the display-cable bracket to the system board. 5.

  • Page 80: Installing The System Board

    NOTE: The USB-C bracket is part of the system-board assembly. Do not remove the bracket from the system board. NOTE: The USB-C connector module must be removed only while servicing the module. It must not be removed while removing the system board. Installing the system board CAUTION: The information in this installation section is intended for authorized service technicians only.
  • Page 81 Figure 45. Installing the system board Steps 1. Align and place the system board on its slot on the palm-rest assembly. NOTE: The USB-C bracket is part of the system-board assembly. Do not remove the bracket from the system board. NOTE: The USB-C connector module must be removed only while servicing the module.

  • Page 82: I/O Board

    11. Lift and place the display-cable bracket on the palm-rest assembly. 12. Replace the two screws (M2x2.5) that secure the display-cable bracket to the system board. 13. Connect the antenna cables from the WLAN card. 14. Lift and place the WLAN bracket off the palm-rest assembly. 15.

  • Page 83: Installing The I/O Board

    Figure 46. Removing the I/O board Steps 1. Remove the screw (M2x2.5) that secures the fingerprint reader bracket to the palm-rest assembly. 2. Lift the fingerprint reader bracket off the palm-rest assembly. 3. Disconnect the fingerprint reader cable (for models shipped with a fingerprint reader), Darwin cable, fan cable, and speaker cable from the I/O board.

  • Page 84: Usb Type-C Connector Module

    Steps 1. Align and place the I/O board on the palm-rest assembly. 2. Replace the six screws (M1.2x1.4) that secure the I/O board to the palm-rest assembly. 3. Connect the fingerprint reader cable (for models shipped with a fingerprint reader), Darwin cable, fan cable, and speaker cable from the I/O board.

  • Page 85: Installing The Usb Type-C Connector Module

    6. Remove the display assembly. 7. Remove the system board. About this task The following images indicate the location of the USB Type-C connector module and provide a visual representation of the removal procedure. Figure 48. Removing the USB Type-C connector module Steps 1.
  • Page 86 Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following images indicate the location of the USB Type-C connector module and provide a visual representation of the installation procedure. Figure 49.

  • Page 87: Power Button With Optional Fingerprint Reader

    7. Install the base cover. Power button with optional fingerprint reader Removing the power button with optional fingerprint reader CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer.

  • Page 88: Installing The Power Button With Optional Fingerprint Reader

    Steps 1. Remove the two screws (M2x2.2) that secure the power button to the palm-rest assembly. 2. Lift the power button off the palm-rest assembly. Installing the power button with optional fingerprint reader CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation process.

  • Page 89: Display Assembly

    2. Install the SIM-card tray (optional). 3. Install the battery. 4. Install the M.2 2230 M.2 2280 SSD, as applicable. 5. Install the 4G WWAN card. 6. Install the display assembly. 7. Install the system board. 8. Install the board. 9.
  • Page 90 Figure 52. Removing the display assembly Removing and installing Field Replaceable Units (FRUs)

  • Page 91: Installing The Display Assembly

    Figure 53. Removing the display assembly Steps 1. Remove the screw (M2x2.5) that secures the fingerprint-reader bracket to the palm-rest assembly. 2. Lift the fingerprint-reader bracket off the palm-rest assembly. 3. Disconnect the Darwin cable connected to palm-rest assembly. 4. Remove the two screws (M2x2.5) that secure the display cable bracket to the palm-rest assembly. 5.
  • Page 92 Figure 54. Installing the display assembly Removing and installing Field Replaceable Units (FRUs)
  • Page 93 Figure 55. Installing the display assembly Steps 1. Carefully place the display assembly and place it on a clean flat-surface. 2. Carefully place the display assembly on the palm-rest assembly. 3. Replace the six screws (M2.5x5) that secure the left and right display hinges to the palm-rest assembly. 4.

  • Page 94: Display Panel

    Display panel Removing the display panel CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SIM-card tray (optional). 3. Remove the base cover.
  • Page 95 Figure 56. Removing the display panel Removing and installing Field Replaceable Units (FRUs)
  • Page 96 Figure 57. Removing the display panel Removing and installing Field Replaceable Units (FRUs)

  • Page 97: Installing The Display Panel

    Figure 58. Removing display panel Steps 1. Remove the two screws (M2x2) that secure the display panel to the display back cover. 2. Gently flip over the display panel and peel the tape securing the display cable to the back of the panel. 3.
  • Page 98 Figure 59. Installing the display panel Removing and installing Field Replaceable Units (FRUs)
  • Page 99 Figure 60. Installing the display panel Steps 1. Align and place the display panel and display assembly on a clean and flat surface. 2. Connect the display cable to the connector on the display panel and close the latch to secure the cable. 3.

  • Page 100: Display Bezel

    5. Install the display bezel. 6. Install the base cover. Display bezel Removing the display bezel CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer.
  • Page 101 Figure 61. Prying the plastic bezel Removing and installing Field Replaceable Units (FRUs)
  • Page 102 Figure 62. Prying the bezel along the sides Removing and installing Field Replaceable Units (FRUs)
  • Page 103 Figure 63. Removing the display bezel Removing and installing Field Replaceable Units (FRUs)
  • Page 104 Figure 64. Removing the display bezel Removing and installing Field Replaceable Units (FRUs)
  • Page 105 Figure 65. Removing the display bezel Steps 1. Insert a flat-head slotted screwdrive (maximum width: 4 mm) into the recess on the display bezel near the hinges, and gently apply pressure to release the bezel at both ends, creating a gap. NOTE: The bezel may become deformed during this process.

  • Page 106: Installing The Display Bezel

    Installing the display bezel CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the display bezel and provide a visual representation of the installation procedure. Figure 66.

  • Page 107: Display Hinge Cap

    Figure 67. Installing display bezel Steps 1. Align and place the display bezel on the display assembly. 2. Gently press along the edges of the display bezel to secure it with the clips on the display assembly. Next steps 1. Follow the procedure in After working inside your computer.
  • Page 108 4. Remove the 4G WWAN card. 5. Remove the display assembly. 6. Remove the display bezel. 7. Remove the display panel. About this task The following images indicate the location of the display hinge cap and provide a visual representation of the removal procedure. Figure 68.

  • Page 109: Installing The Display Hinge Cap

    Installing the display hinge cap CAUTION: The information in this installation section is intended for authorized service technicians only. Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the display hinge cap and provide a visual representation of the installation procedure.

  • Page 110: Display Cable

    Next steps 1. Follow the procedure in After working inside your computer. 2. Install the SIM-card tray (optional). 3. Install the 4G WWAN card. 4. Install the display assembly. 5. Install the display bezel. 6. Install the display panel. 7. Install the base cover.

  • Page 111: Installing The Display Cable

    Steps 1. Peel the tape that secures the display cable to the camera module. 2. Disconnect the display cable from the connector on the camera module. 3. Release it from adhesive on the camera module and lift the display cable off the camera module. Installing the display cable CAUTION: The information in this installation section is intended for authorized service technicians only.

  • Page 112: Camera Module

    Camera module Removing the camera module CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SIM-card tray (optional). 3. Remove the base cover.

  • Page 113: Display Back Cover

    Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the camera module and provide a visual representation of the installation procedure. Figure 73. Installing the camera module Steps 1.

  • Page 114: Installing The Display Back Cover

    Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SIM-card tray (optional). 3. Remove the base cover. 4. Remove the 4G WWAN card. 5. Remove the display assembly. 6. Remove the display bezel. 7. Remove the display panel.
  • Page 115 Prerequisites If you are replacing a component, remove the existing component before performing the installation process. About this task The following images indicate the location of the display back cover and provide a visual representation of the installation procedure. Figure 75. Installing the display back cover Steps Place the display back cover on a flat surface.

  • Page 116: Wireless Local Area Network (Wlan) Antenna Module

    Wireless Local Area Network (WLAN) antenna module Removing the WLAN antenna module Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SIM-card tray (optional). 3. Remove the base cover. 4. Remove the battery. 5. Remove the M.2 2230 M.2 2280 SSD, as applicable.

  • Page 117: Installing The Wlan Antenna Module

    Installing the WLAN antenna module Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task The following image indicates the location of the WLAN antenna module and provides a visual representation of the installation procedure.

  • Page 118: Keyboard

    Keyboard Removing the keyboard CAUTION: The information in this removal section is intended for authorized service technicians only. Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SIM-card tray (optional). 3. Remove the base cover. 4.
  • Page 119 Figure 78. Removing the keyboard Figure 79. Removing the keyboard Removing and installing Field Replaceable Units (FRUs)

  • Page 120: Installing The Keyboard

    Steps 1. Open the latch and disconnect the keyboard cable from the touchpad. NOTE: For the keyboard, the latch is the "black" portion of the connector. NOTE: For the keyboard-backlight, the latch is the "white" portion of the connector. 2. Remove the 22 screws (M2x2.2) that secure the keyboard bracket to the palm-rest assembly. 3.
  • Page 121 Steps 1. Align and place the keyboard on the keyboard bracket. Removing and installing Field Replaceable Units (FRUs)

  • Page 122: Keyboard Filler

    2. Replace the 9 screws (M2x2.2) that secure the keyboard to the keyboard bracket. 3. Turn the keyboard bracket over. 4. Replace the 22 screws (M2x2.2) that secure the keyboard bracket to the palm-rest assembly. 5. Open the latch and disconnect the keyboard cable from the touchpad. NOTE: For the keyboard-backlight, the latch is the "white"...

  • Page 123: Installing The Keyboard Filler

    Figure 81. Removing the keyboard filler Steps 1. Remove the screw (M2x2.5) that secures the WLAN bracket to the system board. 2. Disconnect the antenna cables from the WLAN card. 3. Remove the antenna cables from the routing guides on the keyboard filler. 4.

  • Page 124: Palm-Rest Assembly

    Figure 82. Installing the keyboard filler Steps 1. Align and place the keyboard filler on the palm-rest assembly. 2. Replace the two screws (M2x2.5) that secures the keyboard filler to the palm-rest assembly. 3. Route the antenna cables through the routing guides on the keyboard filler. 4.

  • Page 125: Installing The Palm-Rest Assembly

    9. Remove the system board. 10. Remove the board. About this task NOTE: When replacing the palm-rest assembly, transfer the dummy SIM filler to the new palm-rest assembly. The following image indicates the location of the palm-rest assembly and provides a visual representation of the removal procedure.
  • Page 126 About this task The following image indicates the location of the palm-rest assembly and provides a visual representation of the installation procedure. Figure 84. Installing the palm-rest assembly Steps Place the palm-rest assembly on a clean and flat surface. NOTE: Do not remove the touchpad from the palm-rest assembly.

  • Page 127: Chapter 7: Software

    ● Windows 10 Home ● Windows 10 Pro NOTE: If you downgrade your computer from Windows 11 to Windows 10 22H2, Dell Technologies support follows the Microsoft Windows 10 End of Support plan. NOTE: Windows 10 Home and Windows 10 Pro is supported only on computers shipped with AMD Ryzen 200 series processors.

  • Page 128: Chapter 8: Bios Setup

    BIOS Setup CAUTION: Certain changes can make your computer work incorrectly. Before you change the settings in BIOS Setup, it is recommended that you note down the original settings for future reference. NOTE: Depending on the computer and the installed devices, the options that are listed in this section may differ. Use BIOS Setup for the following purposes: ●...

  • Page 129: View Advanced Setup Options

    Depending on your computer and its installed devices, the items that are listed in this section may or may not be displayed. Table 37. BIOS Setup options—Overview menu  Overview Dell Pro 16 Plus BIOS Version Displays the BIOS version number. Service Tag Displays the Service Tag of the computer.
  • Page 130 Table 37. BIOS Setup options—Overview menu (continued) Overview Manufacture Date Displays the manufacture date of the computer. Ownership Date Displays the ownership date of the computer. Express Service Code Displays the Express Service Code of the computer. Ownership Tag Displays the Ownership Tag of the computer. Signed Firmware Update Displays whether the Signed Firmware Update is enabled on your computer.
  • Page 131 Enables the computer to boot using only validated boot software. By default, the Enable Secure Boot option is disabled. For additional security, Dell Technologies recommends keeping the Secure Boot option is enabled to ensure that the UEFI firmware validates the operating system during the boot process.
  • Page 132 Table 38. BIOS Setup options—Boot Configuration menu (continued) Boot Configuration Enable Custom Mode Enables or disables the ability to modify the keys in the PK, KEK, db, and dbx security key databases to be modified. By default, the Enable Custom Mode option is disabled. Custom Mode Key Management Select Key Database Selects the custom values for expert key management.
  • Page 133 Table 40. BIOS Setup options—Storage menu  Storage SATA/NVMe Operation SATA/NVMe Operation Sets the operating mode of the integrated SATA hard drive controller. By default, the AHCI/NVMe option is selected. The storage device is configured for AHCI/NVMe mode. Storage Interface Displays the information of various onboard drives. Port Enablement Enables or disables the M.2 PCIe SSD option.
  • Page 134 USB Wake Support Wake on Dell USB-C Dock When enabled, connecting a Dell USB-C Dock wakes the computer from Standby, Hibernate, and Power Off. By default, the Wake on Dell USB-C Dock option is enabled. Block Speed Block Speed This options lets you to block enterning sleep mode.
  • Page 135 Disabling the Key Storage Enable option restricts the ability of TPM to store owner's data. By default, the Key Storage Enable option is enabled. For additional security, Dell Technologies recommends keeping the Key Storage Enable option is enabled. NOTE: When disabled, this feature may cause compatibility issues or loss of functionality in some operating systems.
  • Page 136 Absolute Absolute Absolute Software provides various cyber security solutions, some requiring software preloaded on Dell computers and integrated into the BIOS. To use these features, you must enable the Absolute BIOS setting and contact Absolute for configuration and activation. By default, the Absolute option is enabled.
  • Page 137 BIOS Events log. The computer fails to reboot until the event is cleared. By default, the Silent option is enabled. For additional security, Dell Technologies recommends keeping the Firmware Device Tamper Detection option is enabled. Clear Firmware Device Tamper Detection Allows you to clear the events that are logged when tampering of firmware device is detected.
  • Page 138 BIOS passwords. You can modify the minimum and maximum length of the passwords and require passwords to contain certain character classes (upper case, lower case, digit, special character). Dell Technologies recommends setting the minimum password length to at least eight characters. Password Changes...
  • Page 139 By default, the BIOSConnect option is enabled. Dell Auto OS Recovery Threshold Allows you to control the automatic boot flow for SupportAssist System Resolution Console and for Dell OS Recovery Tool. By default, the Dell Auto OS Recovery Threshold value is set to 2. BIOS Setup...
  • Page 140 Table 47. BIOS Setup options—System Management menu  System Management Service Tag Displays the Service Tag of the computer. Asset Tag Creates a computer Asset Tag that can be used by an IT administrator to uniquely identify a particular computer. NOTE: Once set in BIOS, the Asset Tag cannot be changed.
  • Page 141 This option is not available when the virtualization setting for IOMMU is disabled (VT-d/AMD Vi). By default, the Enable Pre-Boot DMA Support option is enabled. For additional security, Dell Technologies recommends keeping the Enable Pre- Boot DMA Support option is enabled. NOTE: This option is provided only for compatibility purposes, since some older hardware is not DMA capable.
  • Page 142 Table 50. BIOS Setup options—Virtualization menu (continued) Virtualization DMA compatibility issues. This option does not directly enable DMA protection in the operating system. NOTE: This option is not available when the virtualization setting for IOMMU is disabled (VT-d/AMD Vi). By default, the Internal Port DMA Compatibility Mode option is enabled. NOTE: This option is provided only for compatibility purposes, since some older hardware is not DMA capable.

  • Page 143: Updating The Bios

    Failure to provide the recovery key can result in data loss or an operating system reinstall. For more information, see the Knowledge Base Resource updating the BIOS on Dell systems with BitLocker enabled. Steps 1.

  • Page 144: Updating The Bios In Linux And Ubuntu

    Failure to provide the recovery key can result in data loss or an operating system reinstall. For more information, see the Knowledge Base Resource updating the BIOS on Dell systems with BitLocker enabled. Steps 1.

  • Page 145: System And Setup Password

    ● USB drive formatted to the FAT32 file system (the drive does not have to be bootable) ● BIOS executable file that you downloaded from the Dell Support website and copied to the root of the USB drive ● AC power adapter must be connected to the computer ●...

  • Page 146: Deleting Or Changing An Existing System Password Or Setup Password

    6. Press Y to save the changes and exit from System Setup. The computer restarts. Clearing system and setup passwords About this task To clear the system or setup passwords, contact Dell technical support as described at Contact Support. NOTE: For information about how to reset Windows or application passwords, see the documentation accompanying Windows or your application.

  • Page 147: Chapter 9: Troubleshooting

    ● Using a non-Dell or incompatible battery may increase the risk of fire or explosion. Replace the battery only with a compatible battery purchased from Dell that is designed to work with your Dell computer. Do not use a battery from other computers with your computer.

  • Page 148: Dell Supportassist Pre-Boot System Performance Check Diagnostics

    Check diagnostics About this task SupportAssist diagnostics (also known as system diagnostics) performs a complete check of your hardware. The Dell SupportAssist Pre-boot System Performance Check diagnostics is embedded within the BIOS and launched by the BIOS internally. The embedded system diagnostics provides options for particular devices or device groups allowing you to: ●...

  • Page 149: Logic Built-In Self-Test (L-Bist)

    LCD Built-in Self-Test (LCD-BIST) Dell laptops have a built-in diagnostic tool that helps you determine if the screen abnormality you are experiencing is an inherent problem with the LCD (screen) of the Dell laptop or with the video card (GPU) and computer settings.

  • Page 150: System-Diagnostic Lights

    System-diagnostic lights This section lists the system-diagnostic lights of your Dell Pro 16 Plus. The following table shows different Service LED blinking patterns and associated problems. The diagnostic light codes consist of a two-digit number, and the digits are separated by a comma. The number stands for a blinking pattern; the first digit shows the number of blinks in amber color, and the second digit shows the number of blinks in white color.

  • Page 151: Recovering The Operating System

    It enables you to diagnose hardware issues, repair your computer, back up your files, and restore your computer to its factory state. You can also download it from the Dell Support website to troubleshoot and fix your computer when it fails to boot into the primary operating system due to software or hardware failures.

  • Page 152: Drain Flea Power (Perform Hard Reset)

    Thunderbolt Docks Issue Overview: When your computer is connected to a Dell Pro Smart Dock or Thunderbolt Dock, and the RJ45 ethernet cable is connected through the ethernet port on the dock, you may not receive LAN connectivity to your computer.

  • Page 153: Chapter 10: Getting Help And Contacting Dell

    Getting help and contacting Dell Self-help resources You can get information and help on Dell products and services using these self-help resources: Table 58. Self-help resources  Self-help resources Resource location Information about Dell products and services Dell Site Tips Contact Support In Windows search, type Contact Support, and press Enter.

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