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Dell Inspiron 5391 Service Manual
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Dell Inspiron 5391 Service Manual

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Inspiron 5391
Service Manual
Regulatory Model: P114G
Regulatory Type: P114G001

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Summary of Contents for Dell Inspiron 5391

  • Page 1 Inspiron 5391 Service Manual Regulatory Model: P114G Regulatory Type: P114G001...
  • Page 2 A WARNING indicates a potential for property damage, personal injury, or death. © 2018 - 2019 Dell Inc. or its subsidiaries. All rights reserved. Dell, EMC, 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

    Contents 1 Safety instructions........................6 Before working inside your computer..........................6 Before you begin ................................6 Electrostatic discharge—ESD protection.......................... 7 ESD field service kit ................................7 Transporting sensitive components............................ 8 After working inside your computer............................ 8 2 Removing and installing components..................... 9 Recommended tools................................9 Screw list....................................
  • Page 4 Removing the power-adapter port..........................33 Installing the power-adapter port..........................33 Display assembly.................................. 34 Removing the display assembly........................... 34 Installing the display assembly............................37 I/O board....................................39 Removing the I/O board...............................39 Installing the I/O board..............................40 Power-button board................................41 Removing the power-button board..........................41 Installing the power-button board..........................
  • Page 5 Running the ePSA diagnostics............................. 76 System diagnostic lights..............................76 Diagnostics....................................77 M-BIST....................................78 LCD Built-In Self-Test (BIST)............................78 Recovering the operating system............................78 Flashing BIOS (USB key)..............................79 Flashing the BIOS................................79 Flea power release................................79 Wi-Fi power cycle................................80 6 Getting help and contacting Dell....................81 Contents...

  • Page 6: Safety Instructions

    You should only perform troubleshooting and repairs as authorized or directed by the Dell technical assistance team. Damage due to servicing that is not authorized by Dell is not covered by your warranty. See the safety instructions that shipped with the product or at www.dell.com/regulatory_compliance.

  • Page 7: Electrostatic Discharge-Esd Protection

    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.

  • Page 8: 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.

  • Page 9: Removing And Installing Components

    Removing and installing components Recommended tools The procedures in this document may require the following tools: • Phillips screwdriver #1 • Flat-head screwdriver • Plastic scribe Screw list NOTE: When removing screws from a component, it is recommended to note the screw type, the quantity of screws, and then place them in a screw storage box.

  • Page 10: Base Cover

    Component Secured to Screw type Quantity Screw image Left display hinge Display back-cover and M2.5x3.5 antenna assembly Hinges Display back-cover and M2.5x2.5 antenna assembly Display-cable bracket System board M2.5x3.5 Power-adapter port Palm-rest and keyboard M2x3 assembly Power button with Palm-rest and keyboard M1.6x2 fingerprint reader bracket assembly...

  • Page 11: Installing The Base Cover

    Steps 1. Loosen the three captive screws on the base cover. 2. Remove the four screws (M2x6) that secure the base cover to the palm-rest and keyboard assembly. 3. Pry the base cover starting from the top-left corner of the palm-rest and keyboard assembly. 4.

  • Page 12: Battery

    Steps 1. Place the computer with the hinges facing towards you. 2. Align the base cover on the palm-rest and keyboard assembly, and snap the base cover into place. 3. Replace the four screws (M2x6) that secure the base cover to the palm-rest and keyboard assembly. 4.

  • Page 13: Installing The Battery

    Steps 1. Disconnect the battery cable from the system board. 2. Remove the four screws (M2x2) that secure the battery to the palm-rest and keyboard assembly. 3. Remove the screw (M1.6x4) that secures the battery to the system board and palm-rest and keyboard assembly. 4.

  • Page 14: Coin-Cell Battery

    Steps 1. Connect the battery cable to the system board. 2. Replace the four screws (M2x2) that secure the battery to the palm-rest and keyboard assembly. 3. Replace the screw (M1.6x4) that secures the battery to the system board and palm-rest and keyboard assembly. Next steps 1.

  • Page 15: Installing The Coin-Cell Battery

    Steps 1. Disconnect the coin-cell battery cable from the system board. 2. Remove the coin-cell battery cable from the routing guide. 3. Peel the coin-cell battery off the palm-rest and keyboard assembly. Installing the coin-cell battery 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 coin-cell battery and provides a visual representation of the installation procedure.

  • Page 16: Solid-State Drive

    Steps 1. Adhere the coin-cell battery to the slot on the palm-rest and keyboard assembly. 2. Route the coin-cell battery cable through the routing guide. 3. Connect the coin-cell battery cable to the system board. Next steps 1. Install the battery. 2.

  • Page 17: Installing The M.2 2280 Solid-State Drive

    Steps 1. Remove the screw (M2x2.5) that secures the solid-state drive to the system board. 2. Slide and remove the solid-state drive from the solid-state drive slot on the system board. Installing the M.2 2280 solid-state drive 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 solid-state drive and provides a visual representation of the installation procedure.

  • Page 18: Removing The M.2 2230 Solid-State Drive

    Steps 1. Align the notch on the solid-state drive with the tab on the solid-state drive slot and slide the solid-state drive into the solid-state drive slot on the system board. 2. Replace the screw (M2x2.5) that secures the solid-state drive to the system board. Next steps 1.

  • Page 19: Installing The M.2 2230 Solid-State Drive

    Steps 1. Remove the screw (M2x2.5) that secures the solid-state drive bracket to the system board. 2. Slide and remove the solid-state drive bracket off the solid-state drive on the system board. 3. Slide and remove the solid-state drive off the solid-state drive slot on the system board. Installing the M.2 2230 solid-state drive Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 20: Heat Sink

    Steps 1. Align the notch on the solid-state drive with the tab on the solid-state drive slot and slide the solid-state drive into the solid-state drive slot on the system board. 2. Slide the solid-state bracket on to the solid-state drive on the system board. 3.

  • Page 21: Installing The Heat Sink

    Steps 1. Peel the mylar tape that secures the heat sink to the system board. 2. In the reverse sequential order (7>6>5>4>3>2>1), loosen the seven captive screws that secure the heat sink to the system board. 3. Lift the heat sink off the system board. Installing the heat sink Prerequisites If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 22: Fan

    Steps 1. Align and place the screw holes on the heat sink with the screw holes on the system board. 2. In sequential order (as indicated on the heat sink), tighten the seven captive screws that secure the heat sink to the system board. 3.

  • Page 23: Installing The Fan

    Steps 1. Disconnect the I/O-board cable from the system board and I/O board. NOTE: This step is only applicable for computers shipped with a WWAN configuration. 2. Remove the two (M2x3) screws that secure the fan to the system board. 3.
  • Page 24 Steps 1. Connect the fan cable to the system board. 2. Align the screw holes on the fan with the screw holes on the palm-rest and keyboard assembly. 3. Replace the two (M2x3) screws that secure the fan to the palm-rest and keyboard assembly. 4.

  • Page 25: Speakers

    Speakers Removing the speakers 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 speakers and provides a visual representation of the removal procedure. Steps 1.

  • Page 26: Installing The Speakers

    NOTE: Note the position of the rubber grommets before lifting the speakers. 5. Lift the speakers, along with the cable, off the palm-rest and keyboard assembly. Installing the speakers 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 speakers and provides a visual representation of the installation procedure.

  • Page 27: Wlan Card

    Next steps 1. Install the battery. 2. Install the base cover. 3. Follow the procedure in After working inside your computer. WLAN card Removing the WLAN card Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover.

  • Page 28: Wwan Card

    About this task The following image indicates the location of WLAN card and provides a visual representation of the installation procedure. Steps 1. Connect the antenna cables to the WLAN card. 2. Align the notch on the WLAN card with the tab on the WLAN card slot and insert the WLAN card at an angle into the WLAN card slot. 3.

  • Page 29: Installing The Wwan Card

    Steps 1. Remove the screw (M2x2.5) that secures the WWAN card bracket to the WWAN card. 2. Note the alignment of the WWAN-card bracket before lifting it off the WWAN card. 3. Disconnect the antenna cables from the WWAN card. 4.

  • Page 30: Touchpad

    Steps 1. Align the notch on the WWAN card with the tab on the WWAN-card slot and insert the WWAN card at an angle into the WWAN-card slot. 2. Connect the antenna cables to the WWAN card and align the WWAN-card bracket on the WWAN card. 3.

  • Page 31: Installing The Touchpad

    Steps 1. Peel the tapes that secure the touchpad to the palm-rest and keyboard assembly. 2. Open the latch and disconnect the touchpad cable from the system board. 3. Remove the three (M1.6x2) screws that secure the touchpad bracket to the palm-rest and keyboard assembly. 4.
  • Page 32 Steps 1. Align and place the touchpad into the slot on the palm-rest and keyboard assembly. 2. Replace the two (M1.6x2) screws that secure the touchpad to the palm-rest and keyboard assembly. 3. Align and place the touchpad bracket into the slot on the palm-rest and keyboard assembly. 4.

  • Page 33: Power-Adapter Port

    Power-adapter port Removing the power-adapter port 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 power-adapter port and provides a visual representation of the removal procedure. Steps 1.

  • Page 34: Display Assembly

    Steps 1. Connect the power-adapter port cable to the system board. 2. Replace the screw (M2x3) that secures the power-adapter port to the palm-rest and keyboard assembly. 3. Align and place the display-cable bracket on the system board. 4. Replace the screw (M2.5x3.5) that secure the display-cable bracket to the system board. 5.
  • Page 35 Removing and installing components...
  • Page 36 Steps 1. Remove the screw (M2.5x3.5) that secures the display-cable bracket to the system board. 2. Lift the display-cable bracket off the system board. 3. Using the pull tab, disconnect the display cable from the system board. 4. Remove the two screws (M2.5x3.5) that secure the left display hinge to the I/O board and palm-rest and keyboard assembly. 5.

  • Page 37: Installing The Display Assembly

    Installing the display assembly 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 display assembly and provides a visual representation of the installation procedure. Removing and installing components...
  • Page 38 Steps 1. Align and place the palm-rest and keyboard assembly on the display assembly. 2. Using the alignment posts, close the display hinges. 3. Replace the two screws (M2.5x3.5) that secures the left display hinge to the I/O board and palm-rest and keyboard assembly. 4.

  • Page 39: I/O Board

    I/O board Removing the I/O board Prerequisites 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 4. Remove the fan. About this task The following image indicates the location of I/O board and provides a visual representation of the removal procedure. Steps 1.

  • Page 40: Installing The I/O Board

    4. Open the latch and disconnect the I/O-board cable from the I/O board. 5. Remove the screw (M2.5x2.5) that secures the I/O board to the palm-rest and keyboard assembly. 6. Remove the screw (M2x3) that secures the I/O board to the palm-rest and keyboard assembly. 7.

  • Page 41: Power-Button Board

    5. Adhere the tape that secures the I/O board to the I/O board. 6. Using the alignment posts, close the display hinges. 7. Replace the two screws (M2.5x3.5) that secure the left display hinge to the I/O board and palm-rest and keyboard assembly. Next steps 1.

  • Page 42: Installing The Power-Button Board

    Installing the power-button board 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 power-button board and provides a visual representation of the installation procedure. Steps 1.

  • Page 43: Installing The Power Button With Fingerprint Reader

    1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 4. Remove the WLAN card. 5. Remove the fan. 6. Remove the board. About this task The following image indicates the location of power button with fingerprint reader and provides a visual representation of the removal procedure.

  • Page 44: System Board

    Steps 1. Align and place the power button with fingerprint reader on the palm-rest and keyboard assembly. 2. Replace the screw (M1.6x2) that secure the power button with fingerprint reader to the palm-rest and keyboard assembly. 3. Connect the fingerprint-reader cable to the fingerprint-reader board and close the latch to secure the cable. 4.
  • Page 45 About this task The following image indicates the location of system board and provides a visual representation of the removal procedure. Steps 1. Remove the screw (M2x4) screw that secures the right display hinge to the system board. 2. Remove the screw (M2x4) that secures the display-cable bracket to the system board. 3.

  • Page 46: Installing The System Board

    Installing the system board 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 system board and provides a visual representation of the installation procedure. Steps 1.

  • Page 47: Display Bezel

    9. Connect the fingerprint-reader cable to the system board and close the latch to secure the cable. 10. Connect the speaker cable to the system board. 11. Connect the I/O-board cable to the system board and close the latch to secure the cable. 12.

  • Page 48: Installing The Display Bezel

    Steps 1. Carefully pry the edges of the display bezel off the display back-cover and antenna assembly. 2. Remove the display bezel off the display back-cover and antenna assembly. Installing the display bezel Prerequisites NOTE: This procedure is not applicable to computers shipped with a WWAN configuration. If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 49: Display Panel

    Steps Align the display bezel with the display back-cover and antenna assembly, and gently snap the display bezel into place. Next steps 1. Install the display assembly. 2. Install the WLAN card. 3. Install the battery. 4. Install the base cover.
  • Page 50 Removing and installing components...
  • Page 51 Removing and installing components...

  • Page 52: Installing The Display Panel

    Steps 1. Using a plastic scribe, slide out the pull tab of the SR tape from both sides of the display panel. 2. Pull out a small section of the SR tape. 3. Roll the SR tape around the plastic scribe. NOTE: To avoid severing/breaking the SR tape, pull out only a small section of the SR tape and then roll the SR tape around the scribe.
  • Page 53 Removing and installing components...
  • Page 54 Steps 1. Peel off the transparent protective films from the SR tapes. 2. Align and adhere both the SR tapes to the plastic edge of the display back-cover. 3. Peel off the blue protective films from the SR tapes. 4. Starting from the top, align and place the display panel on the display back-cover. 5.

  • Page 55: Display Hinges

    Display hinges Removing the display hinges Prerequisites NOTE: This procedure is not applicable to computers shipped with a WWAN configuration. 1. Follow the procedure in Before working inside your computer. 2. Remove the base cover. 3. Remove the battery. 4. Remove the WLAN card.

  • Page 56: Camera

    About this task The following image indicates the location of display hinges and provides a visual representation of the installation procedure. Steps 1. Align the screw holes on the hinges with the screw holes on the display back-cover. 2. Replace the two (M2x2) screws that secure the display hinges to the display back-cover. 3.

  • Page 57: Installing The Camera

    About this task The following image indicates the location of camera and provides a visual representation of the removal procedure. Steps 1. Peel the tape that secures the camera to the display back-cover 2. Using a plastic scribe, pry the camera from the alignment post on the display back-cover. 3.

  • Page 58: Display Back-Cover

    Steps 1. Adhere the camera to the display cable (tape) and connect the camera cable to the camera and turn it over. 2. Using the alignment post, turn the camera over and adhere to the display back-cover. 3. Adhere the tape that secures the camera to the display back-cover. Next steps 1.

  • Page 59: Installing The Display Back-Cover

    10. Remove the camera. About this task The following image indicates the display back-cover and provides a visual representation of the removal procedure. Steps After performing all the prerequisites, we are left with the display back-cover. NOTE: Antenna cables are a part of the palm-rest and keyboard assembly for computers shipping with WLAN configurations.

  • Page 60: Display Cable

    Steps Place the display back-cover on a flat surface. NOTE: Antenna cables are a part of the palm-rest and keyboard assembly for computers shipping with WLAN configurations. Next steps 1. Install the camera. 2. Install the display cable. 3. Install the display panel.

  • Page 61: Installing The Display Cable

    Steps 1. Peel off the tape securing the display cable to the back-cover. 2. Peel the display cable off the display back-cover. Installing the display cable Prerequisites NOTE: This procedure is not applicable to computers shipped with a WWAN configuration. If you are replacing a component, remove the existing component before performing the installation procedure.

  • Page 62: Palm-Rest And Keyboard Assembly

    Steps 1. Adhere the tape securing the display cable to the back-cover. 2. Adhere the display cable to the display back-cover. Next steps 1. Install the display bezel. 2. Install the display panel. 3. Install the display assembly. 4. Install the battery. 5.

  • Page 63: Installing The Palm-Rest And Keyboard Assembly

    About this task The following image indicates the palm-rest and keyboard assembly and provides a visual representation of the removal procedure. Steps After performing the steps in the pre-requisites, we are left with the palm-rest and keyboard assembly. NOTE: Antenna cables are a part of the display back-cover for computers shipping with WWAN configuration. NOTE: System board can be removed with heatsink attached.
  • Page 64 Steps Place the palm-rest and keyboard assembly on a flat surface. NOTE: Antenna cables are a part of the display back-cover for computers shipping with WWAN configuration. Next steps 1. Install the touchpad. 2. Install the power-adapter port. 3. Install the power button with fingerprint reader power-button board, whichever applicable.

  • Page 65: Device Drivers

    Device drivers Intel Chipset Software Installation Utility In the Device Manager, check if the chipset driver is installed. Install the Intel chipset updates from www.dell.com/support. Video drivers In the Device Manager, check if the video driver is installed. Install the video driver update from www.dell.com/support.

  • Page 66: System Setup

    Steps 1. Turn on (or restart) your computer. 2. During POST, when the DELL logo is displayed, watch for the F2 prompt to appear, and then press F2 immediately. NOTE: The F2 prompt indicates that the keyboard is initialized. This prompt can appear very quickly, so you must watch for it, and then press F2.

  • Page 67: Boot Sequence

    Boot Sequence allows you to bypass the System Setup–defined boot device order and boot directly to a specific device (for example: optical drive or hard drive). During the Power-on Self Test (POST), when the Dell logo appears, you can: •...
  • Page 68 Overview Processor Type Displays the processor type. Maximum Clock Speed Displays the maximum processor clock speed. Core Count Displays the number of cores on the processor. Processor L2 Cache Displays the processor L2 Cache size. Processor ID Displays the processor identification code. Processor L3 Cache Displays the processor L3 Cache size.
  • Page 69 Boot options UEFI Boot Path Security Enables or disables the system to prompt the user to enter the Admin password when booting a UEFI boot path from the F12 boot menu. Default: Always Except Internal HDD. Table 4. System setup options—System Configuration menu System Configuration Date/Time Date...
  • Page 70 System Configuration Keyboard Backlight Timeout on Battery Configures the timeout value for the keyboard when the computer is running on battery. The keyboard backlight timeout value is only effect when the backlight is enabled. Default: 10 seconds. Touchscreen Enables or disables the touchscreen for the operating system. NOTE: Touchscreen will always work in the BIOS setup irrespective of this setting.
  • Page 71 Security Intel SGX Enables or disables the Intel Software Guard Extensions (SGX) to provide a secured environment for running code/storing sensitive information. Default: Software Control SMM Security Mitigation Enables or disables additional UEFI SMM Security Mitigation protections. Default: OFF. NOTE: This feature may cause compatibility issues or loss of functionality with some legacy tools and applications.
  • Page 72 Performance Intel SpeedStep Enables or disables the Intel SpeedStep Technology to dynamically adjust processor voltage and core frequency, decreasing average power consumption and heat production. Default: ON. Intel TurboBoost Technology Enabled or disabled the Intel TurboBoost mode of the processor. If enabled, the Intel TurboBoost driver increases the performance of the CPU or graphics processor.
  • Page 73 Table 11. System setup options—Wireless menu Wireless Wireless Switch Determines which wireless devices can be controlled by the Wireless Switch. For Windows 8 systems, this is controlled by an operating system drive directly. As a result, the setting does not affect the Wireless Switch behavior. NOTE: When both WLAN and WiGig are present, enable/disable controls are tied together.
  • Page 74 Dell Auto operating system Recovery Controls the automatic boot flow for SupportAssist System Resolution Console and Threshold for Dell operating system Recovery tool. Default: 2. SupportAssist operating system Recovery Enables or disables the boot flow for SupportAssist operating system Recovery tool in the even of certain system errors.

  • Page 75: Clearing Cmos Settings

    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.

  • Page 76: Troubleshooting

    Running the ePSA diagnostics Steps 1. Turn on your computer. 2. As the computer boots, press the F12 key as the Dell logo appears. 3. On the boot menu screen, select the Diagnostics option. 4. Click the arrow at the bottom left corner.

  • Page 77: Diagnostics

    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.

  • Page 78: M-Bist

    Recovery. Dell SupportAssist OS Recovery is a standalone tool that is preinstalled in all Dell computers installed with Windows 10 operating system. It consists of tools to diagnose and troubleshoot issues that may occur before your computer boots to the operating system. It enables you to diagnose hardware issues, repair your computer, back up your files, or restore your computer to its factory state.

  • Page 79: Flashing Bios (Usb Key)

    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. For more information about the Dell SupportAssist OS Recovery, see Dell SupportAssist OS Recovery User's Guide at www.dell.com/...

  • Page 80: Wi-Fi Power Cycle

    7. Turn on your computer. Wi-Fi power cycle About this task If your computer is unable to access the Internet due to Wi-Fi connectivity issues a Wi-Fi power cycle procedure may be performed. The following procedure provides the instructions on how to conduct a Wi-Fi power cycle: NOTE: Some ISPs (Internet Service Providers) provide a modem/router combo device.

  • Page 81: 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 19. Self-help resources Self-help resources Resource location Information about Dell products and services www.dell.com My Dell Tips Contact Support In Windows search, type Contact Support, and press Enter.

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