After working inside your computer..........................8 Chapter 2: Removing and installing components................9 Recommended tools................................9 Screw list....................................9 Major components of Latitude 7320 Detachable......................11 Subscriber Identity Module (SIM) card........................12 Removing the SIM tray............................... 12 Installing the SIM tray..............................13 Display assembly.................................14...
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Installing the kick stand hinges..........................41 Docking connector................................42 Removing the docking connector..........................42 Installing the docking connector..........................43 Hall sensor daughter board.............................45 Removing the Hall sensor daughter board......................45 Installing the Hall sensor daughter board......................45 Heat sink....................................46 Removing the heat sink............................. 46 Installing the heat sink..............................47 System fan..................................
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Built-in self-test (BIST)..............................87 M-BIST................................... 87 LCD Built-in Self-Test (BIST)...........................88 System diagnostic lights..............................88 Recovering the operating system..........................90 Backup media and recovery options..........................90 WiFi power cycle................................90 Flea power release................................90 Chapter 6: Getting help and contacting Dell................92 Contents...
Standby power Dell products with standby power must be unplugged before you open the case. Systems that incorporate standby power are essentially powered while turned off. The internal power enables the system to be remotely turned on (wake on LAN) and suspended into a sleep mode and has other advanced power management features.
ESD protection is an increasing concern. Due to the increased density of semiconductors used in recent Dell products, the sensitivity to static damage is now higher than in previous Dell products. For this reason, some previously approved methods of handling parts are no longer applicable.
It is recommended that all field service technicians use the traditional wired ESD grounding wrist strap and protective anti-static mat at all times when servicing Dell products. In addition, it is critical that technicians keep sensitive parts separate from all insulator parts while performing service and that they use anti-static bags for transporting sensitive components.
The images in this document may differ from your computer depending on the configuration you ordered. Topics: • Recommended tools • Screw list • Major components of Latitude 7320 Detachable • Subscriber Identity Module (SIM) card • Display assembly • Solid-state drive •...
Screw type Quantity Screw image Display panel M2.5x3.5 Major components of Latitude 7320 Detachable The following image shows the major components of Latitude 7320 Detachable. 1. Display assembly 2. Fingerprint reader 3. Battery 4. Speaker 5. Right fan 6. System board shielding cover 7.
NOTE: Dell provides a list of components and their part numbers for the original system configuration purchased. These parts are available according to warranty coverages purchased by the customer. Contact your Dell sales representative for purchase options. Subscriber Identity Module (SIM) card...
2. Push the pin inward to release the SIM card tray 3. Slide the SIM card tray out of the slot in the computer. 4. Remove the SIM card from the SIM card tray. 5. Slide the SIM card tray into the slot, until it clicks into place. Installing the SIM tray Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
Next steps 1. Follow the procedure in After working inside your computer. Display assembly Removing the display assembly Prerequisites 1. Follow the procedure in Before working inside your system. 2. Remove the tray. About this task The following images indicate the location of the display assembly and provide a visual representation of the removal procedure. Removing and installing components...
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1. Open the kick stand to the widest possible angle, the system will power on. NOTE: The Latitude 7320 Detachable has an automatic power-on feature. The system powers on anytime the kick stand is opened. Follow the below steps to ensure that the system does not power on while the performing replacement procedures.
CAUTION: Make sure that the system has already been powered off before removing the screws. Remove the four (M1.6x4) screws securing the display panel to the display back cover. 5. Using a plastic scribe, push the two release holes next to the kick stand hinges to loosen the display assembly from the display back cover.
Steps 1. Place the display assembly face down on a padded surface just below the computer. 2. Connect the display cable to the connector on the system board. 3. Align and place the display cable bracket and place it on the display cable connector. 4.
About this task The following images indicate the location of the M.2 solid-state drive and provide a visual representation of the removal procedure. Steps 1. Remove the single (M2x2.5) screw securing the M.2 solid-state drive shield in place. 2. Remove the M.2 solid-state drive shield from the computer. NOTE: If the thermal pad located under the M.2 SSD gets detached from the system board, re-adhere it to the system board.
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About this task The following image indicates the location of the M.2 solid-state drive and provides a visual representation of the installation procedure. Steps 1. Align the notch on the M.2 solid-state drive with the tab on the M.2 solid-state drive slot on the system board. 2.
WWAN card Removing the WWAN card Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the tray. 3. Remove the display assembly. About this task The following image indicates the location of the WWAN card and provide a visual representation of the removal procedure. Steps 1.
Installing the WWAN card 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 WWAN card and provides a visual representation of the installation procedure. Steps 1.
5. Tighten the single captive screw to secure the WWAN bracket to the WWAN card. NOTE: For instructions on how to find your computer's IMEI (International Mobile Station Equipment Identity) number, see the knowledge base article 000143678 at www.dell.com/support. Next steps 1. Install the display assembly.
Steps 1. Disconnect the speaker cable from the connector on system board. 2. Lift the speakers along with the cable off the system board. Installing the left speaker 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 left speaker and provides a visual representation of the installation procedure.
Steps 1. Align and place the speakers in its slot on the system board. 2. Reconnect the left speaker cable to the connector on the system board. Next steps 1. Install the display assembly. 2. Install the tray. 3. Follow the procedure in After working inside your computer.
Steps 1. Disconnect the right fan FPC and speaker cable from the connector on system board. 2. Lift the speakers along with the cable off the system board. Installing the right speaker 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 right speaker and provides a visual representation of the installation procedure.
Steps 1. Align and place the speaker in its slot on the system board. 2. Reconnect the fan FPC and left speaker cable to the connector on the system board. Next steps 1. Install the display assembly. 2. Install the tray.
Steps 1. Lift the system board shield off the system board. 2. Disconnect the rear-facing camera FPC from the connector on the system board. 3. Remove the two (M1.6x3) screws that secure the rear-facing camera in place. 4. Lift the rear-facing camera out of the system. Installing the rear-facing camera Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
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Steps 1. Align and place the rear-facing camera into the slot on the display back cover. 2. Replace the two (M1.6x3) that secure the rear-facing camera to the display back cover. 3. Connect the rear-facing camera FPC to the connector on the system board. 4.
Microphone module Removing the right microphone modules Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the SIM tray 3. Remove the display assembly. About this task The following images indicate the location of the right microphone module and provide a visual representation of the removal procedure.
Steps 1. Align and place the right microphone into the slot on the display back cover. 2. Connect the right microphone module to the front-facing camera module. NOTE: The right microphone module must be connected to both the front-facing camera and system board. Failure to make both of these connections will result in the front-facing camera not working..
Steps 1. Disconnect the left microphone module FPC from the system board.. 2. Lift the left microphone module out of the system. Installing the left microphone 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 left microphone module and provides a visual representation of the installation procedure.
Steps 1. Align and place the left microphone into the slot on the display back cover. 2. Connect the left microphone module FPC to the connector on the system board. Next steps 1. Install the display assembly. 2. Install the tray.
Installing the front-facing camera 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 front-facing camera module and provides a visual representation of the installation procedure.
About this task The following images indicate the location of the kick stand and provide a visual representation of the removal procedure. Steps 1. Remove the four (M1.6x3) screws that secure the kick stand to the kick stand hinges. 2. Flip the system over and lift the kick stand away from the system. Installing the kick stand Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.
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Steps 1. Align the screw holes on the kick stand with the screw holes on the frame, and flip the system. NOTE: Ensure that the pins on the kick stand are inserted into the alignment holes on the kick stand hinges. 2.
Kickstand Hinges Removing the kick stand hinges Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the tray. 3. Remove the display assembly. 4. Remove the kick stand. About this task The following images indicate the location of the kick stand hinges and provide a visual representation of the removal procedure. Steps 1.
Steps 1. Align the screw holes on the kick stand hinges with the screw holes on the frame. 2. Replace the six (M2x2) screws that secure the Kick stand hinges to the frame. Next steps 1. Install the kick stand. 2.
Steps 1. Open the latch and disconnect the docking connector FPC from the connector on the system board. 2. Peel the docking connector from the battery. 3. Remove the two (M2x2) screws that secure the docking connector bracket to the frame. 4.
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Steps 1. Align and place docking connector into slot on the frame. 2. Align and place the docking connector bracket on the docking connector. 3. Replace the two (M2x2) screws to secure the docking connector bracket to the frame. 4. Affix the docking connector FPC to the battery. 5.
Hall sensor daughter board Removing the Hall sensor daughter board Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the tray. 3. Remove the display assembly. About this task The following images indicate the location of the Hall sensor daughter board and provide a visual representation of the removal procedure.
Steps 1. Align and place the Hall sensor daughter board into the slot on the frame. 2. Replace the single (M2x2) that secures the Hall sensor daughter board to the frame. 3. Affix the Hall sensor daughter board FPC to the battery. 4.
Steps 1. Lift the system board shielding cover from the system board. 2. Peel back the WLAN antenna grounding foil and WWAN antenna grounding foil from the heat sink.. 3. Loosen the four captive screws that secure the heat sink as per their callout . 4.
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Steps 1. Align the screw holes on the heat sink with the screw holes on the system board. 2. Tighten the four captive screws that secure the heat sink to the system board as per their callout. 3. Affix the WLAN antenna grounding foil and WWAN antenna grounding foil to the heat sink. 4.
System fan Removing the left fan Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the tray. 3. Remove the display assembly. About this task The following images indicate the location of the left fan and provide a visual representation of the removal procedure. Steps 1.
5. Disconnect the left system fan FPC from the connector on the system board. 6. Lift the left fan out of the computer. Installing the left fan 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 left fan and provide a visual representation of the installation procedure.
Table 3. Antenna-cable color scheme Connectors on the wireless card Antenna-cable color Main (white triangle) White Auxiliary (black triangle) Black 6. Place the WLAN card bracket on the WLAN card. 7. Tighten the single captive screw that secures the WLAN card bracket to the system board. Next steps 1.
Installing the right fan 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 right fan and provide a visual representation of the installation procedure. Steps 1.
About this task The following images indicate the location of the Volume button daughter board and provide a visual representation of the removal procedure. Steps 1. Open the latch and disconnect the volume button daughter board FPC from the system board. 2.
Steps 1. Align and place the volume button daughter board on the system board. NOTE: When installing the volume button daughter board, fully insert the power button module into its compartment, and then press the volume buttons to check whether the daughter board is correctly installed. 2.
Steps 1. Open the latch and disconnect the power-button daughter board FPC and the fingerprint reader FFC from the power-button daughter board. 2. Remove the two (M1.6x1.5) screws that secure the power-button daughter board to the frame.. 3. Lift the power-button daughter board out of the system. Installing the power-button board About this task The following images indicate the location of the power-button board and provide a visual representation of the installation...
Steps 1. Align and place the power-button board on the frame. 2. Replace the two screws (M1.6x1.5) that secure the power-button board to the frame. 3. Connect the power-button daughter board FPC and the fingerprint reader FFC to the power-button daughter board Next steps 1.
Steps 1. Peel and remove the fingerprint reader bracket. 2. Lift the fingerprint reader out of the system. Installing the fingerprint reader About this task The following images indicate the location of the fingerprint reader and provide a visual representation of the installation procedure.
● If the battery gets stuck inside your computer as a result of swelling, do not try to release it as puncturing, bending, or crushing a lithium-ion battery can be dangerous. In such an instance, contact Dell technical support for assistance. See www.dell.com/contactdell.
Steps 1. Disconnect and carefully peel back the HALL sensor daughter board FPC and docking connector FPC from the battery.. 2. Remove the single (M1.6x3.4) screw that secures the battery cable connector to the system board. 3. Disconnect the battery cable connector from the system board. 4.
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Steps 1. Place the interposer board on the system board. 2. Align and place the battery into the system. 3. Replace the six (M2x3) screws that secure the battery to the frame. 4. Connect the battery cable to the system board. 5.
System board Removing the system board Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the tray. 3. Remove the display assembly. 4. Remove the WWAN card. 5. Remove the left system fan. 6. Remove the right system fan.
Steps 1. Remove the two (M1.6x2.5) screws that secure the Darwin cable brackets to the system board. 2. Disconnect the volume button FPC, USH FFC, audio port FPC, rear-facing camera FPC, and the power button daughter board FPC from the system board. 3.
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Steps 1. Align the screw holes on the system board with the screw holes on the frame. 2. Replace the two (M2x2) screws that secure the system board to the frame. 3. Connect the volume button FPC, USH FFC, audio port FPC, rear-facing camera FPC, and the power button daughter board FPC to the system board 4.
Smart card reader Removing the smart card reader Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the tray. 3. Remove the display assembly. 4. Remove the WWAN card. 5. Remove the left system fan. 6. Remove the right system fan.
Steps 1. Remove the three (M2x2) screws that secure the smart card reader support brackets to the frame. 2. Remove the smart card reader support brackets. 3. Open the latch and disconnect the smart card reader FPC from the connector on the USH board. 4.
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Steps 1. Align and place the smart card reader on the frame. 2. Replace the three (M2x2) screws that secure the smart card reader to the frame. 3. Connect the smart card reader FPC to the connector on the USH board and close the latch. 4.
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12. Install the tray. 13. Follow the procedure in After working inside your computer. Removing and installing components...
Topics: • Operating system • Downloading the drivers Operating system Your Latitude 7320 Detachable supports the following operating systems: ● Windows 10 Home (64-bit) ● Windows 10 Professional (64-bit) Downloading the drivers Steps 1. Turn on your computer. 2. Go to www.dell.com/support.
Depending on your system and its installed devices, the items that are listed in this section may or may not appear. Table 4. System setup options—System information menu Overview Latitude 7320 detachable BIOS Version Displays the BIOS version number. Service Tag Displays the Service Tag of the system.
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Table 4. System setup options—System information menu (continued) Overview Express Service Code Displays the express service code of the system. Ownership Tag Displays the Ownership Tag of the system. Signed Firmware Update Displays whether the Signed Firmware Update is enabled on your system. Battery Information Primary Displays that battery is primary.
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Table 4. System setup options—System information menu (continued) Overview Pass Through MAC Address Displays the pass through MAC address of the system. Cellular Device Displays the M.2 PCIe SSD information of the system. Table 5. System setup options—Boot Configuration menu Boot Configuration Boot Sequence Boot mode Displays the boot mode.
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By default, the Video/Power only on Type-C Ports option is disabled. Type-C Dock Override Enables to use connected Type-C Dell Dock to provide data stream with external USB ports disabled. When Type-C Dock override is enabled, the Video/Audio/Lan submenu is activated.
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Table 7. System setup options—Storage menu (continued) Storage Enable MediaCard Secure Digital (SD) Card Enable or disable the SD card. By default, the Secure Digital (SD) Card option is enabled. Secure Digital (SD) Card Read-Only Mode Enable or disable the SD card read-only mode. By default, the Secure Digital (SD) Card Read-Only Mode option is not enabled.
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By default, the Optimized option is enabled. USB Wake Support Wake on Dell USB-C Dock When enabled, connecting a Dell USB-C Dock will wake the system from standby. By default, the Wake on Dell USB-C Dock option is enabled. Block Sleep Enables to block entering sleep (S3) mode in the operating system.
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Table 11. System setup options—Security menu (continued) Security Key Storage Enable Enables to control whether the Trusted Platform Module (TPM) Storage Hierarchy is available to the operating system. By default, the Key Storage Enable option is enabled. SHA-256 BIOS and the TPM will use the SHA-256 hash algorithm to extend measurements into the TPM PCRs during BIOS boot.
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Allow Non-Admin PSID Revert Enable Allow Non-Admin PSID Revert Controls access to the Physical Security ID (PSID) revert of NVMe hard-drives from the Dell Security Manager prompt. By default, the option is disabled. Table 13. System setup options—Update, Recovery menu ...
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Dell Auto operating system Recovery Controls the automatic boot flow for SupportAssist System Resolution Console Threshold and for Dell operating system Recovery Tool. By default, the threshold value is set to 2. Table 14. System setup options—System Management menu System Management Service Tag Display the Service Tag of the system.
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Table 15. System setup options—Keyboard menu (continued) Keyboard Device Configuration Hotkey Access Manages whether you can access device configuration screens through hotkeys during system startup. By default, the option is enabled. Table 16. System setup options—Pre-boot Behavior menu Pre-boot Behavior Adapter Warnings Enable Adapter Warnings Enable or disable the warning messages during boot when the adapters with less power capacity are detected.
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Table 18. System setup options—Performance menu Performance Multi Core Support Active Cores Enables to change the number of CPU cores available to the operating system. By default, the All Cores option is enabled. Intel SpeedStep Enable Intel SpeedStep Technology Enables the system to dynamically adjust processor voltage and core frequency, decreasing average power consumption and heat production.
Updating the BIOS in Windows to download the latest BIOS setup program file. 2. Create a bootable USB drive. For more information, search in the Knowledge Base Resource at www.dell.com/support. 3. Copy the BIOS setup program file to the bootable USB drive.
One-Time boot menu on the computer. Most of the Dell computers built after 2012 have this capability, and you can confirm by booting your computer to the F12 One-Time Boot Menu to see if BIOS FLASH UPDATE is listed as a boot option for your computer. If the option is listed, then the BIOS supports this BIOS update option.
CAUTION: The password features provide a basic level of security for the data on your computer. CAUTION: Anyone can access the data that is stored on your computer if it is not locked and left unattended. NOTE: System and setup password feature is disabled. Assigning a system setup password Prerequisites You can assign a new System or Admin Password only when the status is in Not Set.
Clearing BIOS (System Setup) and System passwords About this task To clear the system or BIOS passwords, contact Dell technical support as described at www.dell.com/contactdell. NOTE: For information on how to reset Windows or application passwords, refer to the documentation accompanying Windows or your application.
● 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.
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 with the BIOS and is launched by the BIOS internally. The embedded system diagnostics provides a set of options for particular devices or device groups allowing you to: ●...
LCD Built-in Self-Test (BIST) Dell computers 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 computer or with the video card (GPU) and computer settings.
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For example, the power and battery-status light blinks amber two times followed by a pause, and then blinks white three times followed by a pause. This 2,3 pattern continues until the computer is turned off indicating no memory or RAM is detected. The following table shows different power and battery-status light patterns and associated problems.
It enables you to diagnose hardware issues, repair your computer, back up your files, or 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 their primary operating system due to software or hardware failures.
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Steps 1. Turn off your computer. 2. Disconnect the power adapter from your computer. 3. Press and hold the power button for 15 seconds to drain the flea power. 4. Connect the power adapter to your computer. 5. Turn on your computer. Troubleshooting...
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 22. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com Tips Contact Support In Windows search, type Contact Support, and press Enter.
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