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

Dell Pro 16 Owner's Manual

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Dell Pro 16
PC16255
Owner's Manual
Regulatory Model: P134F
Regulatory Type: P134F003
March 2025
Rev. A00

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Summary of Contents for Dell Pro 16

  • Page 1 Dell Pro 16 PC16255 Owner's Manual Regulatory Model: P134F Regulatory Type: P134F003 March 2025 Rev. A00...
  • 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 Locate the Service Tag or Express Service Code label of your computer............11 Battery-charge status light.............................. 11 Chapter 2: Set up your Dell Pro 16 PC16255................. 13 Chapter 3: Specifications of Dell Pro 16 PC16255................ 15 Dimensions and weight..............................15 Processor.....................................
  • Page 4 After working inside your computer........................34 BitLocker..................................... 34 Recommended tools................................. 34 Screw list.....................................35 Major components of Dell Pro 16 PC16255........................ 36 Chapter 5: Removing and installing Customer Replaceable Units (CRUs)........39 Base cover..................................39 Removing the base cover............................39 Installing the base cover............................42 Battery....................................
  • Page 5 I/O-board FPC cable................................ 67 Removing the I/O-board FPC cable ........................67 Installing the I/O board FPC cable..........................68 Power button with fingerprint reader.......................... 69 Removing the power button with fingerprint reader..................69 Installing the power button with a fingerprint reader..................70 System board..................................71 Removing the system board............................
  • Page 6 LCD Built-in Self-Test (LCD-BIST)........................140 System-diagnostic lights..............................140 Recovering the operating system..........................141 Real-Time Clock (RTC Reset)............................142 Backup media and recovery options........................... 142 Network power cycle..............................142 Drain flea power (perform hard reset)........................142 Chapter 10: Getting help and contacting Dell Technologies............144 Contents...
  • Page 7 Views of Dell Pro 16 PC16255 Right Figure 1. Right View 1. USB 3.2 Gen 1 port Connect devices such as external storage devices and printers. It provides data transfer speeds up to 5 Gbps. 2. USB 3.2 Gen 1 port with PowerShare Connect devices such as external storage devices and printers.
  • Page 8 A 40 Gbps-certified cable is required to achieve the maximum performance of 40 Gbps. NOTE: The USB port is backward compatible with USB 3.2, USB 2.0. 5. Global headset port Connect headphones or a headset (headphone and microphone combo). Figure 3. Top view Views of Dell Pro 16 PC16255...
  • Page 9 Provides digital sound input for audio recording and voice calls. 2. Infrared camera (optional) Enhances security when paired with Windows Hello face authentication. 3. Infrared emitter (optional) Emits infrared light, which enables the infrared camera to sense and track motion. 4. Privacy shutter Views of Dell Pro 16 PC16255...
  • Page 10 The Express Service Code is a numeric version of the Service Tag. 3. MyDell QR code MyDell is your hub for content that is personalized to your Dell Pro 16 PC16255, including videos, articles, manuals, and easy access to support. 4. Air vents Air vents provide ventilation for your computer.
  • Page 11 The service tag is a unique alphanumeric identifier that allows Dell service technicians to identify the hardware components in your computer and access warranty information. The Express Service Code is a numeric version of the Service Tag.
  • Page 12 Table 2. Ethernet (RJ45) status LED (continued) LED Behavior Connection status Blinking Amber Data transfer is in progress. Views of Dell Pro 16 PC16255...
  • Page 13 If connecting to a secured wireless network, enter the password for the wireless network access when prompted. ● If connected to the Internet, sign in with or create a Microsoft account. 3. Locate and use Dell apps from the Windows Start menu—Recommended. Set up your Dell Pro 16 PC16255...
  • Page 14 When an issue is detected, the necessary system state information is sent to Dell to begin troubleshooting. SupportAssist is preinstalled on most of the Dell devices running the Windows operating system. For more information, see Support Assist documentation at Dell Support Site.
  • Page 15 The weight of your computer depends on the configuration that is ordered. Processor The following table lists the details of the processors that are supported in your Dell Pro 16 PC16255. Table 5. Processor (For computers shipped with AMD Ryzen AI 300 series)  Description...
  • Page 16 Not applicable Not applicable Not applicable Not applicable Not applicable Up to 16 (NPU) Performance TOPS Chipset The following table lists the details of the chipset that is supported by your Dell Pro 16 PC16255. Table 7. Chipset  Description Values Chipset...
  • Page 17 ● Windows 10 Home ● Windows 10 Professional NOTE: If you downgrade your computer from Windows 11 to Windows 10 22H2, Dell Technologies support will follow the Microsoft Windows 10 End of Support plan. Memory The following table lists the memory specifications that are supported by your Dell Pro 16 PC16255.
  • Page 18 Model Integrated Realtek RTL8111H-CG Transfer rate 10/100/1000 Mbps Wireless module The following table lists the Wireless Local Area Network (WLAN) module that is supported on your Dell Pro 16 PC16255. Table 12. Wireless module specifications  Description Values Model number MediaTek MT7922...
  • Page 19 Encryption ● 64-bit/128-bit WEP ● AES-CCMP ● TKIP Bluetooth wireless card Bluetooth 5.3 Audio The following table lists the audio specifications of your Dell Pro 16 PC16255. Table 13. Audio specifications  Description Values Audio controller Realtek ALC3204 Stereo conversion Supported...
  • Page 20 Keyboard The following table lists the keyboard specifications of your Dell Pro 16 PC16255. Table 15. Keyboard specifications  Description Values Keyboard type ● Backlit keyboard with Copliot key and fingerprint reader ● Backlit keyboard with Copliot key ● Non-backlit keyboard with Copliot key and fingerprint reader ●...
  • Page 21 Move to the end of the document Copilot Launch Copilot in Windows NOTE: If Copilot in Windows is not available on your computer, the Copilot key launches Recall. If both Recall and Copilot in Windows are not available on your Specifications of Dell Pro 16 PC16255...
  • Page 22 Copilot in Windows and Recall, search in the Knowledge Base Resource at the Dell Support Site. Camera The following table lists the camera specifications of your Dell Pro 16 PC16255. Table 18. Camera specifications  Description Values Number of cameras NOTE: The second camera is optional and may not be included in all configurations.
  • Page 23 For more information about the touchpad gestures available on Windows, see the Microsoft Knowledge Base article at Microsoft Support Site. Power adapter The following table lists the power adapter specifications of your Dell Pro 16 PC16255. Table 20. Power-adapter specifications  Description Option one Option two...
  • Page 24 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 PC16255.
  • Page 25 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 PC16255. Table 23. Battery specifications  Description Option one...
  • Page 26 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 27 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 PC16255. Table 24. Display specifications  Description...
  • Page 28 The following table lists the sensor of your Dell Pro 16 PC16255. Table 26. Sensor  Sensor support Hall Effect sensor GPU—Integrated The following table lists the specifications of the integrated Graphics Processing Unit (GPU) supported by your Dell Pro 16 PC16255. Table 27. GPU—Integrated  Controller Memory size...
  • Page 29 ● AMD Ryzen AI 7 350 ● AMD Ryzen AI 7 PRO 350 Multiple display support matrix The following table lists the multiple display support matrix for your Dell Pro 16 PC16255. Table 28. Multiple display support matrix  Graphics Card...
  • Page 30 Site. Dell Optimizer Dell Optimizer is an application that is designed to enhance computer performance and productivity by optimizing settings for power, battery, display, and presence detection. It also provides access to applications purchased with your new computer. For more information, see Dell Optimizer User's Guide at Dell Support Site.
  • Page 31 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. See the safety instructions that are shipped with the product or at Dell Regulatory Compliance Home Page.
  • Page 32 Ensure that your computer is shut down and the power adapter is disconnected. a. Press and hold the B key and the power button for 3 seconds or until the Dell logo appears on the screen. b. Press any key to continue.
  • Page 33 received a static shock and immediately generates a "No POST/No Video" symptom with a beep code that is emitted for missing or nonfunctional memory. ● Intermittent – Intermittent failures represent approximately 80 percent of ESD-related failures. The high rate of intermittent failures means that most of the time when damage occurs, it is not immediately recognizable.
  • Page 34 Dell products. In addition, it is critical to keep sensitive parts separate from all insulator parts while servicing the computer. 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...
  • Page 35 Screw list NOTE: When removing screws from a component, it is recommended to note the screw type and the quantity of screws, and then place them in a screw storage box. This is to ensure that the correct number of screws and correct screw type is restored when the component is replaced.
  • Page 36 2.55 kgf-cm to 3.45 kgf-cm Displya panel assembly M2.5x2.5 2.55 kgf-cm to 3.45 kgf-cm M2.5x3.5 2.55 kgf-cm to 3.45 kgf-cm Major components of Dell Pro 16 PC16255 The following image shows the major components of Dell Pro 16 PC16255. Working inside your computer...
  • Page 37 Figure 10. Major Components of your system/Exploded View 1. Base cover 2. Power-adapter port Working inside your computer...
  • Page 38 17. USB Type-C module NOTE: Dell provides a list of components and their part numbers for the original computer configuration purchased. These parts are available according to warranty coverage purchased by the customer. Contact your Dell sales representative for purchase options.
  • Page 39 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. Base cover Removing the base cover Prerequisites...
  • Page 40 Figure 11. Removing the base cover Removing and installing Customer Replaceable Units (CRUs)
  • Page 41 Figure 12. Removing the base cover Figure 13. Disconnecting the battery cable Steps 1. Loosen the nine captive screws (M2.5x6) that secure the base cover to the chassis. 2. Using a plastic scribe, pry open the base cover starting from the U-shaped indents at the bottom edge of the base cover near the hinges.
  • Page 42 7. Press and hold the power button for five seconds 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 installation procedure.
  • Page 43 Figure 15. Installing the base cover Removing and installing Customer Replaceable Units (CRUs)
  • Page 44 Figure 16. 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 system board if the computer is not in service mode. 2.
  • Page 45 ● If the battery gets stuck inside your computer due to swelling, do not try to release it as, puncturing, bending, or crushing a rechargeable Li-ion battery can be dangerous. In such an instance, contact Dell technical support for assistance. See Contact Support at Dell Support Site.
  • Page 46 Figure 17. Removing the battery Steps 1. Use the pull tab to disconnect the battery cable from the connector (BATT1) on the system board. 2. Remove the screw (M2x4) that secures the battery to the palm-rest assembly. 3. Loosen the four captive screws (M2x3) that secure the battery to the palm-rest assembly. 4.
  • Page 47 Figure 18. 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 48 Battery cable Removing the battery cable Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the battery. About this task The following image indicates the location of the battery cable and provides a visual representation of the removal procedure. Figure 19.
  • Page 49 Figure 20. Installing the battery cable Steps 1. Connect the battery cable to the connector on the battery. 2. Route the battery cable through the routing guides on the battery. 3. Turn the battery over. Next steps 1. Install the battery. 2.
  • Page 50 Figure 21. Removing the memory module Steps 1. Pry the clips that secure the memory module until it pops up. 2. Remove the memory module from the slot. NOTE: Repeat steps if there is more than one memory module installed on your computer. CAUTION: To prevent damage to the memory module, hold the memory module by the edges.
  • Page 51 Figure 22. Installing the memory module Steps 1. Align the notch on the memory module with the tab on the memory-module slot. 2. Slide the memory module firmly into the slot at an angle. 3. Press the memory module down until it clicks into place. NOTE: If you do not hear the click, remove the memory module and reinstall it.
  • Page 52 Figure 23. Removing the SSD Steps 1. Remove the screw (M2x3) that secures the SSD to the system board. 2. Slide and remove the SSD from the M.2 slot on the system board. Installing the solid state drive (SSD) Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
  • Page 53 Figure 24. Installing the SSD Steps 1. Align the notch on the SSD with the tab on the M.2 SSD slot on the system board. 2. Slide the M.2 2230 solid state drive into the SSD slot on the system board. 3.
  • Page 54 Figure 25. Removing the wireless card Steps 1. Remove the screw (M2x3) that secures the wireless-card bracket to the system board. 2. Lift the wireless-card bracket from the wireless card. 3. Disconnect the WLAN antenna cables from the wireless card. 4.
  • Page 55 Figure 26. Installing the wireless card Steps 1. Connect the WLAN-antenna cables to the respective connectors on the wireless card. The following table provides the antenna-cable color scheme for the wireless card that is supported for your computer. Table 32. WLAN-antenna cable color scheme  Connectors on the wireless card Antenna-cable color Main - White triangle (△)
  • Page 56 Next steps 1. Install the base cover. 2. Follow the procedure in After working inside your computer. Speakers Removing the speakers Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. About this task The following image indicates the location of the battery and provides a visual representation of the removal procedure.
  • Page 57 Steps 1. Disconnect the speaker cable from the connector (SPK1) on the system board. 2. Unroute the speaker cable from the routing guides on the palm-rest assembly. 3. Remove the speakers from the palm-rest assembly. Installing the speakers Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure. About this task NOTE: If the rubber grommets are pushed out when removing the speakers, push them back in place before replacing the...
  • Page 58 Steps 1. Using the alignment posts, place the speakers into their slots on the palm-rest assembly. NOTE: Ensure that the rubber grommets are seated into the slot and installed on the speakers properly. Figure 29. Rubber grommets 2. Route the speaker cables through the routing guides on the palm-rest assembly. 3.
  • Page 59 Figure 30. Removing the fan Steps 1. Disconnect the fan cable from the connector (FAN1) on the system board. 2. Remove the two screws (M2x3) that secure the fan to the system board. 3. Lift and remove the fan from the system board. Installing the fan Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
  • Page 60 Figure 31. Installing the fan Steps 1. Place and align the screw holes on the fan with the screw holes on the system board. 2. Replace the two screws (M2x3) that secures the fan to the system board. 3. Connect the fan cable to the connector (FAN1) on the system board. Next steps 1.
  • Page 61 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 62 Figure 32. Removing the power-adapter port Steps 1. Remove the three screws (M2.5x5) that secure the left display-hinge to the palm-rest assembly. 2. Lift the left display-hinge upward to access the power-adapter port. 3. Disconnect the power-adapter port cable from the connector (DCIN1) on the system board. 4.
  • Page 63 Figure 33. Installing the power-adapter port Steps 1. Align and place the power-adapter port on the system board. 2. Connect the power-adapter port cable to the connector (DCIN1) on the system board. 3. Gently press the left display-hinge in a downward direction towards the power-adapter port. 4.
  • Page 64 Figure 34. Removing the heat sink Steps 1. Loosen the four captive screws (M2x5.4) that secure the heat sink to the system board. NOTE: Loosen the captive screws in the reverse sequential order mentioned on the heat sink [4 > 3 > 2 > 1]. 2.
  • Page 65 Figure 35. Installing the heat sink Steps 1. Place the heat sink into its slot on the system board. 2. Align the screw holes on the heat sink to the screw holes on the system board. 3. Tighten the four captive screws (M2x5.4) that secure the heat sink to the system board. NOTE: Tighten the captive screws in the sequential order mentioned on the heat sink [1 >...
  • Page 66 About this task The following images indicate the location of the I/O board and provide a visual representation of the removal procedure. Figure 36. Removing the I/O board Steps 1. Remove the three screws (M2.5x5) that secure the right display-hinge to the chassis. 2.
  • Page 67 Figure 37. Installing the I/O board Steps 1. Place and align the screw holes on the I/O board with the screw holes on the palm-rest assembly. 2. Replace the three screws (M2x3) that secure the I/O board to the palm-rest assembly. 3.
  • Page 68 Figure 38. Removing the I/O-board FPC cable Steps 1. Open the latch and disconnect the I/O-board FPC cable from the connector (IO) on the I/O board. 2. Open the latch and disconnect the other end of the I/O-board FPC cable from the connector on the system board. 3.
  • Page 69 Figure 39. Installing the I/O board Steps 1. Slide the I/O-board FPC cable beneath the WLAN antenna cables. 2. Connect the I/O-board FPC cable to the connector on the system board and close the latch to secure the cable in place. 3.
  • Page 70 Figure 40. Removing the power button with fingerprint reader Steps Lift the power button from the slot in the palm-rest assembly. Installing the power button with a 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 procedure.
  • Page 71 Figure 41. Installing the power button with a fingerprint reader Steps Place the power button into its slot in the palm-rest assembly. Next steps 1. Install the board. 2. Install the fan. 3. Install the base cover. 4. Follow the procedure in After working inside your computer.
  • Page 72 Figure 42. System-board connectors 1. Fan-cable connector (FAN1) 2. Display-cable connector (LCD1) 3. DC-in port connector (DCIN1) 4. Speaker-cable connector (SPK1) 5. Memory-module connectors (DM1 AND DM2) 6. Battery-cable connector (BATT1) 7. Touchpad-cable connector (TPAD1) 8. Wireless-card connector (WLAN1) 9. SSD slot 10.
  • Page 73 Figure 43. Removing the system board Removing and installing Field Replaceable Units (FRUs)
  • Page 74 Figure 44. Removing the system board Steps 1. Remove the three screws (M2.5x5) that secure the left display-hinge to the palm-rest assembly. 2. Lift the left display-hinge in an upward direction away from the system board. 3. Disconnect the following cables from the respective connectors on the system board: ●...
  • Page 75 Figure 45. System-board connectors 1. Fan-cable connector (FAN1) 2. Display-cable connector (LCD1) 3. DC-in port connector (DCIN1) 4. Speaker-cable connector (SPK1) 5. Memory-module connectors (DM1 AND DM2) 6. Battery-cable connector (BATT1) 7. Touchpad-cable connector (TPAD1) 8. Wireless-card connector (WLAN1) 9. SSD slot 10.
  • Page 76 Figure 46. Installing the system board Removing and installing Field Replaceable Units (FRUs)
  • Page 77 Figure 47. Installing the system board Steps 1. Align the screw holes on the system board with the screw holes on the palm-rest assembly. 2. Replace the three screws (M2x3) that secures the system board to the palm-rest assembly. 3. Replace the two screws (M2x5) that secures the Type-C module to the system board. 4.
  • Page 78 9. Follow the procedure in After working inside your computer. USB Type-C module Removing the USB Type-C 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.
  • Page 79 2. Remove the USB Type-C module from the system board. Installing the USB Type-C module 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 procedure. About this task The following images indicate the location of the USB Type-C module and provide a visual representation of the installation procedure.
  • Page 80 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 base cover. 3. Remove the battery. 4. Remove the memory module.
  • Page 81 Figure 50. Removing the keyboard Removing and installing Field Replaceable Units (FRUs)
  • Page 82 Figure 51. Removing the keyboard Figure 52. Removing the keyboard Steps 1. Disconnect the keyboard cable and the keyboard backlit cable from its connector on the touchpad. 2. Remove the 22 screws (M2x2.2) that secure the keyboard to the palm-rest assembly. 3.
  • Page 83 Installing the keyboard 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 procedure. About this task The following images indicate the location of the keyboard and provide a visual representation of the installation procedure. Figure 53.
  • Page 84 Figure 54. Installing the keyboard Removing and installing Field Replaceable Units (FRUs)
  • Page 85 Figure 55. Installing the keyboard Steps 1. Align the screw holes on the keyboard with the screw holes on the palm-rest assembly. 2. Connect the keyboard cable and the keyboard backlit cable to the connector on the touchpad. 3. Replace the 22 screws (M2x2.2) that secure the keyboard to the palm-rest assembly. Next steps 1.
  • Page 86 Keyboard support plate Removing the keyboard support plate 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 base cover. 3. Remove the battery. 4.
  • Page 87 Figure 57. Removing the keyboard support plate Steps 1. Remove the eight (M2x2.2) screws that secure the keyboard to the keyboard support plate. 2. Lift the keyboard support plate off the keyboard. Installing the keyboard support plate 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 procedure.
  • Page 88 Figure 58. Installing the keyboard support plate Figure 59. Installing the keyboard support plate Steps 1. Align the screw holes on the keyboard with the screw holes on the keyboard support plate. 2. Replace the eight (M2x2.2) screws that secure the keyboard to the keyboard support plate. Next steps 1.
  • Page 89 2. Install the power-adapter port. 3. Install the system board. 4. Install the board. 5. Install the display assembly. 6. Install the heat sink. 7. Install the fan. 8. Install the wireless card. 9. Install the SSD. 10. Install the memory module.
  • Page 90 Figure 60. Removing the palm-rest assembly Installing the palm-rest assembly 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 procedure. About this task The following image shows the palm-rest assembly.
  • Page 91 Figure 61. Installing the palm-rest assembly Steps Place the palm-rest assembly on a flat surface. NOTE: The touchpad is part of the palm-rest assembly. Next steps 1. Install the keyboard. 2. Install the power-adapter port. 3. Install the system board. 4.
  • Page 92 Display assembly Removing the display assembly 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 base cover. 3. Remove the wireless card.
  • Page 93 Figure 62. Removing the display assembly Removing and installing Field Replaceable Units (FRUs)
  • Page 94 Figure 63. Removing the display assembly Figure 64. Removing the display assembly Steps 1. Place the system on a flat surface such that the palm-rest and keyboard assembly lies flat on the surface. Removing and installing Field Replaceable Units (FRUs)
  • Page 95 2. Unroute the WLAN antenna cables from the routing guides on the fan. 3. Peel away the mylar that secures the display cable to the system board. 4. Open the latch and disconnect the display cable from the connector (LCD1) on the system board. 5.
  • Page 96 Figure 66. Installing the display assembly Steps 1. Place the display assembly on a flat surface. 2. Slide the palm-rest keyboard assembly under the hinges of the display assembly. 3. Gently press down on the display hinges and align the screw holes on the display hinges with the screw holes on the palm-rest and keyboard assembly.
  • Page 97 2. Remove the base cover. 3. Remove the display assembly. About this task The following images indicate the location of the display bezel and provide a visual representation of the removal procedure. Figure 67. Removing the display bezel Removing and installing Field Replaceable Units (FRUs)
  • Page 98 Figure 68. Removing the display bezel Removing and installing Field Replaceable Units (FRUs)
  • Page 99 Figure 69. Removing the display bezel Removing and installing Field Replaceable Units (FRUs)
  • Page 100 Figure 70. Removing the display bezel Removing and installing Field Replaceable Units (FRUs)
  • Page 101 Figure 71. Removing the display bezel Steps 1. Insert a flat-head screwdriver (maximum width: 4 mm) into the slots on the display bezel near the hinges, and gently apply pressure to release the bezel at both ends, creating a gap. 2.
  • Page 102 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 display bezel and provide a visual representation of the installation procedure. Figure 72. Installing the display bezel Removing and installing Field Replaceable Units (FRUs)
  • Page 103 Figure 73. Installing the display bezel Steps NOTE: The holding tape secures the camera shutter to the replacement display bezel. CAUTION: To avoid accidental removal or damage to the camera shutter on the replacement display bezel, avoid peeling off the holding tape abruptly. 1.
  • Page 104 3. Remove the display assembly. 4. Remove the display bezel. About this task The following images indicate the location of the display-panel assembly and provide a visual representation of the removal procedure. Figure 74. Removing the display-panel assembly Removing and installing Field Replaceable Units (FRUs)
  • Page 105 Figure 75. Removing the display-panel assembly Figure 76. Removing the display-panel assembly Removing and installing Field Replaceable Units (FRUs)
  • Page 106 Figure 77. Removing the display-panel assembly Steps NOTE: The display-panel assembly is preassembled with the display brackets as a single service part. Do not pull the Stretch Release tapes and separate the brackets from the display-panel. Removing and installing Field Replaceable Units (FRUs)
  • Page 107 1. Remove the six (M2.5x2.5) screws and four (M2.5x3.5) screws that secure the left and right hinges to the display back cover. NOTE: While Removing the display-panel assembly, disengage the display-panel tabs from the display cover before flipping it over. 2.
  • Page 108 Figure 78. Installing the display-panel assembly Removing and installing Field Replaceable Units (FRUs)
  • Page 109 Figure 79. Installing the display-panel assembly Figure 80. Installing the display-panel assembly Removing and installing Field Replaceable Units (FRUs)
  • Page 110 Figure 81. Installing the display-panel assembly Steps NOTE: The display-panel assembly is preassembled with the display brackets as a single service part. Do not pull theStretch Release tapes to separate the brackets from the display-panel. 1. Place the display-panel assembly on a flat and clean surface. 2.
  • Page 111 Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the display assembly. 4. Remove the display bezel. 5. Remove the display-panel assembly. About this task The following image indicates the location of the camera and provides a visual representation of the removal procedure. Figure 82.
  • Page 112 Figure 83. Installing the camera Steps 1. Align and place the camera module on the slot on the display back cover. 2. Connect the camera cable to the camera module and reattach the clip. Next steps 1. Install the display-panel assembly.
  • Page 113 About this task The following image indicates the location of the eDP cable and provides a visual representation of the removal procedure. Figure 84. Removing the eDP cable Steps 1. Disconnect the eDP cable from the connector (LCD1) on the camera module. 2.
  • Page 114 Figure 85. Installing the eDP cable Steps 1. Connect the eDP cable to the connector (LCD1) on the camera module. 2. Adhere the eDP cable to the display back cover. 3. Adhere the conductive tape and route the eDP cable to the display back cover. Next steps 1.
  • Page 115 4. Remove the display bezel. 5. Remove the display-panel assembly. 6. Remove the camera. 7. Remove the cable. About this task The following image shows the display back-cover assembly and provides a visual representation of the removal procedure. Figure 86. Removing the display back-cover assembly Steps After performing the steps in the pre-requisites, we are left with the display back-cover assembly.
  • Page 116 Figure 87. Installing the display back-cover assembly Steps Place the display back-cover assembly on a clean and flat surface. Next steps 1. Install the cable. 2. Install the camera. 3. Install the display-panel assembly. 4. Install the display bezel. 5. Install the display assembly.
  • Page 117 ● Windows 10 Home ● Windows 10 Professional NOTE: If you downgrade your computer from Windows 11 to Windows 10 22H2, Dell Technologies support will follow the Microsoft Windows 10 End of Support plan. Drivers and downloads When troubleshooting, downloading, or installing drivers, it is recommended that you read the Dell Knowledge Base article Drivers and Downloads FAQs 000123347.
  • Page 118 BIOS Setup NOTE: Depending on the computer and the installed devices, the options that are listed in this section may or may not be displayed. 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.
  • Page 119 Depending on your computer and its installed devices, the items that are listed in this section may or may not be displayed. Table 34. BIOS Setup options—Overview menu  Overview Dell Pro 16 PC16255 BIOS Version Displays the BIOS version number. Service Tag Displays the Service Tag of the computer.
  • Page 120 Table 34. BIOS Setup options—Overview menu (continued) Overview 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. Battery Information Primary Displays the primary battery of the computer. Battery Level Displays the battery level of the computer.
  • Page 121 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 122 Table 35. BIOS Setup options—Boot Configuration menu (continued) Boot Configuration Select Key Database Selects the custom values for expert key management. By default, the PK option is selected. Table 36. BIOS Setup options—Integrated Devices menu  Integrated Devices Date/Time Date Sets the computer date in MM/DD/YYYY format. Changes to the date format take effect immediately.
  • Page 123 Table 36. BIOS Setup options—Integrated Devices menu (continued) Integrated Devices By default, the Enable Thunderbolt (and PCIe behind TBT) pre-boot modules option is disabled. Video/Power only on Type-C Ports Enables or disables the Type-C port functionality to video or only power. By default, the Video/Power only on Type-C Ports option is disabled.
  • Page 124 Table 38. BIOS Setup options—Display menu (continued) Display By default, the Full Screen Logo option is disabled. Table 39. BIOS Setup options—Connection menu  Connection Network Controller Configuration Integrated NIC This option controls the on-board LAN Controller. By default, the Enabled with PXE option is enabled. Wireless Device Enable WLAN Enables or disables the internal WLAN device.
  • Page 125 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. Lid Switch Enable Lid Switch Enables or disables the Lid Switch.
  • Page 126 BIOS. This option returns to the disabled state when the computer restarts. By default, the Clear option is disabled. Dell Technologies recommends enabling the Clear option only when TPM data is required to be cleared. Physical Presence Interface (PPI) Bypass By default, the PPI Bypass for Clear Commands option is disabled.
  • Page 127 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 128 Password prompt. ● The computer password is not prompted when the computer resumes from standby mode. Dell Technologies recommends using the computer password in situations where it is likely that a computer may be lost or stolen. M.2 PCIe SSD-0 The hard drive password can be set to prevent unauthorized access of the data stored on the solid-state drive.
  • Page 129 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 130 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 131 Table 44. 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 132 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 133 Table 47. BIOS Setup options—Virtualization menu (continued) Virtualization NOTE: This option is provided only for compatibility purposes, since some older hardware is not DMA capable. Internal Port DMA Compatability Mode Allows you to control the boot compatibility for integrated PCIe peripherals by disabling PCIe DMA protection on internal PCIe ports.
  • Page 134 1. Go to Dell Support Site. 2. Go to Search Dell or identify your product. In the box, enter the product identifier, model, service request or describe what you are looking for, and then click Search. NOTE: If you do not have the Service Tag, use the SupportAssist to automatically identify your computer. You can also use the product ID or manually browse for your computer model.
  • Page 135 1. Go to Dell Support Site. 2. Go to Search Dell or identify your product . In the box, enter the product identifier, model, service request or describe what you are looking for, and then click Search. NOTE: If you do not have the Service Tag, use the SupportAssist to automatically identify your computer. You can also use the product ID or manually browse for your computer model.
  • Page 136 ● 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 137 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 138 ● 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 139 Dell Support Site. 4. If there are any issues, error codes are displayed. Note the error code and validation number and contact Dell. Built-in self-test (BIST) (Motherboard Built-In Self-Test) M-BIST M-BIST is the system board built-in self-test diagnostics tool that improves the diagnostics accuracy of system board Embedded Controller (EC) failures.
  • Page 140 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 141 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 142 Backup media and recovery options It is recommended to create a recovery drive to troubleshoot and fix problems that may occur with Windows. Dell provides multiple options for recovering the Windows operating system on your Dell computer. For more information, see...
  • Page 143 NOTE: For more information about performing a hard reset, go to Dell Support Site. On the menu bar at the top of the Support page, select Support > Support Library. In the Search field on the Support Library page, type the keyword, topic, or model number, and then click or tap the search icon to view the related articles.
  • Page 144 Getting help and contacting Dell Technologies Self-help resources You can get information and help on Dell Technologies products and services using these self-help resources: Table 54. Self-help resources  Self-help resources Resource location Information about Dell Technologies products and services Dell Site...

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