Dell P152G Service Manual Download Page 29 | Manualshive

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Steps

1. Remove the screw (M2x3.5) that secures the wireless-card bracket to the system board.
2. Lift the wireless-card bracket from the wireless card.
3. Disconnect the antenna cables from the wireless card.
4. Slide and remove the wireless card from the WLAN slot on the system board.

Installing the wireless card

Prerequisites

If you are replacing a component, remove the existing component before performing the installation process.

About this task

The following images indicate the location of the wireless card and provide a visual representation of the installation procedure.

Removing and installing components

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Summary of Contents for P152G

Page 1: ...Vostro 3425 Service Manual Regulatory Model P152G Regulatory Type P152G002 February 2022 Rev A00 ...

Page 2: ...ential damage to hardware or loss of data and tells you how to avoid the problem WARNING A WARNING indicates a potential for property damage personal injury or death 2022 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: ...7 Installing the base cover 19 Battery 20 Lithium ion battery precautions 20 Removing the battery 21 Installing the battery 21 Memory modules 22 Removing the memory modules 22 Installing the memory modules 23 M 2 solid state drive 24 Removing the M 2 2230 solid state drive 24 Installing the M 2 2230 solid state drive 25 Removing the M 2 2280 solid state drive 26 Installing the M 2 2280 solid state...

Page 4: ...play bezel 57 Installing the display bezel 58 Hinges 59 Removing the hinges 59 Installing the hinges 60 Display panel 62 Removing the display panel 62 Installing the display panel 63 eDP cable 65 Removing the eDP cable Plastic 65 Installing the eDP cable Plastic 66 Removing the eDP cable Aluminum 67 Installing the eDP cable Aluminum 68 Camera assembly 70 Removing the camera module Plastic 70 Insta...

Page 5: ...g an existing system setup password 94 Clearing BIOS System Setup and System passwords 94 Chapter 5 Troubleshooting 96 Handling swollen Lithium ion batteries 96 Dell SupportAssist Pre boot System Performance Check diagnostics 96 Running the SupportAssist Pre Boot System Performance Check 97 Built in self test BIST 97 M BIST 97 LCD Power rail test L BIST 98 LCD Built in Self Test BIST 98 System dia...

Page 6: ...touching anything inside your computer ground yourself by touching an unpainted metal surface such as the metal at the back of the computer While you work periodically touch an unpainted metal surface to dissipate static electricity which could harm internal components CAUTION When you disconnect a cable pull it by its connector or its pull tab not the cable itself Some cables have connectors with...

Page 7: ...he wrist strap should be secure and in full contact with your skin and ensure that you remove all jewelry such as watches bracelets or rings prior to bonding yourself and the equipment Electrostatic discharge ESD protection ESD is a major concern when you handle electronic components especially sensitive components such as expansion cards processors memory DIMMs and system boards Very slight charg...

Page 8: ...t once per week A wrist strap tester is the best method for doing this test If you do not have your own wrist strap tester check with your regional office to find out if they have one To perform the test plug the wrist strap s bonding wire into the tester while it is strapped to your wrist and push the button to test A green LED is lit if the test is successful a red LED is lit and an alarm sounds...

Page 9: ...ts that you removed before working on your computer 4 Connect your computer and all attached devices to their electrical outlets 5 Turn on your computer BitLocker CAUTION If BitLocker is not suspended before updating the BIOS the next time you reboot the system it will not recognize the BitLocker key You will then be prompted to enter the recovery key to progress and the system will ask for this o...

Page 10: ...ew storage box This is to ensure that the correct number of screws and correct screw type is restored when the component is replaced NOTE Some computers have magnetic surfaces Ensure that the screws are not left attached to such surfaces when replacing a component NOTE Screw color may vary with the configuration ordered Table 1 Screw list Component Screw type Quantity Screw image Base cover M2x5 C...

Page 11: ... mm 1 Display assembly M2 5x5 4 System board M2x3 5 M2x2 3 1 USB Type C Bracket M2x3 5 1 Touchpad Touchpad bracket M2x2 O D 5 mm 2 4 RF Bracket for Aluminum and 3 cell battery only M2x2 O D 7 mm 2 Major components of Vostro 3425 The following image shows the major components of Vostro 3425 Removing and installing components 11 ...

Page 12: ...Base cover 2 Battery 3 Speakers 4 Power button with optional finger print reader 5 Touchpad 6 Touchpad bracket 7 Power adapter port 8 Solid state drive thermal plate 12 Removing and installing components ...

Page 13: ...des 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 Secure Digital SD Card Removing the Secure Digital card Prerequisites 1 Follow the procedure in Before working inside your computer Removing and installing comp...

Page 14: ...About this task 14 Removing and installing components ...

Page 15: ...he card slot 2 Slide the secure digital card out of the computer Installing the Secure Digital card Prerequisites If you are replacing a component remove the existing component before performing the installation procedure Removing and installing components 15 ...

Page 16: ...About this task 16 Removing and installing components ...

Page 17: ...requisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card About this task NOTE Before removing the base cover ensure that there is no SD card installed in the SD card slot on your computer The following images indicate the location of the base cover and provide a visual representation of the removal procedure Removing and installing components 17 ...

Page 18: ... 3 Using a plastic scribe pry open the base cover from the recesses located in the U shaped indents at the top edge of the base cover near the hinges 4 Lift the base cover off the palm rest and keyboard assembly 5 Disconnect the battery cable from the system board 6 Press and hold the power button for five seconds to ground the computer and drain the flea power 18 Removing and installing component...

Page 19: ... component remove the existing component before performing the installation process About this task The following images indicate the location of the base cover and provide a visual representation of the installation procedure Removing and installing components 19 ...

Page 20: ...scharge the battery completely before removing it Disconnect the AC power adapter from the system and operate the computer solely on battery power the battery is fully discharged when the computer no longer turns on when the power button is pressed Do not crush drop mutilate or penetrate the battery with foreign objects Do not expose the battery to high temperatures or disassemble battery packs an...

Page 21: ... Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card 3 Remove the base cover About this task The following image indicates the location of the 4 cell battery and provides a visual representation of the removal procedure Steps 1 Disconnect the battery cable from the system board if applicable 2 Remove the five M2x3 screws that secure the battery to the p...

Page 22: ...battery has three M2x3 screws that secure the battery to the palm rest and keyboard assembly 4 Connect the battery cable to the connector on the system board Next steps 1 Install the base cover 2 Install the SD card 3 Follow the procedure in After working inside your computer Memory modules Removing the memory modules Prerequisites 1 Follow the procedure in Before working inside your computer 2 Re...

Page 23: ... have up to two memory modules installed Repeat steps 1 to 2 if there is a second memory module installed Installing the memory modules Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following images indicate the location of the memory modules and provide a visual representation of the installation procedu...

Page 24: ...er 2 Install the SD card 3 Follow the procedure in After working inside your computer M 2 solid state drive Removing the M 2 2230 solid state drive Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card 3 Remove the base cover About this task NOTE This procedure applies only to computers shipped with an M 2 2230 solid state drive installed NOTE The M 2 car...

Page 25: ...alling the M 2 2230 solid state drive Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task NOTE This procedure applies if you are installing a M 2 2230 solid state drive NOTE The M 2 card installed on your computer depends on the configuration ordered Supported card configurations on the M 2 card slot M 2 2230 solid...

Page 26: ...l the SD card 3 Follow the procedure in After working inside your computer Removing the M 2 2280 solid state drive Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card 3 Remove the base cover About this task NOTE This procedure applies only to computers shipped with a M 2 2280 solid state drive installed NOTE The M 2 card installed on your computer depen...

Page 27: ...ing a component remove the existing component before performing the installation process About this task NOTE This procedure applies if you are installing a M 2 2280 solid state drive NOTE The M 2 card installed on your computer depends on the configuration ordered Supported card configurations on the M 2 card slot M 2 2230 solid state drive M 2 2280 solid state drive The following images indicate...

Page 28: ...the M2x2 screw that secures the M 2 thermal plate and the M 2 solid state drive to the palm rest and keyboard assembly Next steps 1 Install the base cover 2 Install the SD card 3 Follow the procedure in After working inside your computer Wireless card Removing the wireless card Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card 3 Remove the base cover ...

Page 29: ...Slide and remove the wireless card from the WLAN slot on the system board Installing the wireless card Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following images indicate the location of the wireless card and provide a visual representation of the installation procedure Removing and installing compone...

Page 30: ...le color scheme Connectors on the wireless card Antenna cable color Silkscreen marking Main White MAIN white triangle Auxiliary Black AUX black triangle 3 Place the wireless card bracket on the wireless card 4 Replace the screw M2x3 5 that secures the wireless card bracket to the system board Next steps 1 Install the base cover 2 Install the SD card 3 Follow the procedure in After working inside y...

Page 31: ... the fan cable from the system board 2 Remove the two M2x5 screws that secure the fan to the palm rest and keyboard assembly 3 Lift the fan from the palm rest and keyboard assembly Installing the fan Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following images indicate the location of the fan and provid...

Page 32: ...w the procedure in After working inside your computer Heat sink Removing the UMA heat sink Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card 3 Remove the base cover About this task NOTE The heat sink may become hot during normal operation Allow sufficient time for the heat sink to cool before you touch it NOTE For maximum cooling of the processor do n...

Page 33: ... on the configuration ordered 2 Lift the heat sink from the system board Installing the UMA heat sink Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task NOTE If either the system board or the heat sink is replaced use the thermal grease provided in the kit to ensure that thermal conductivity is achieved The follow...

Page 34: ...onfiguration ordered Next steps 1 Install the base cover 2 Install the SD card 3 Follow the procedure in After working inside your computer Removing the discrete heat sink Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card 3 Remove the base cover About this task The following images indicate the location of the discrete heat sink and provide a visual r...

Page 35: ... mentioned on the heat sink 7 6 5 4 3 2 1 NOTE The number of screws varies depending on the configuration ordered 2 Lift the heat sink from the system board Installing the discrete heat sink Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following images indicate the location of the discrete heat sink and ...

Page 36: ...s 1 Install the base cover 2 Install the SD card 3 Follow the procedure in After working inside your computer I O daughter board FFC Removing the Input Output daughter board FFC Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the fan About this task The following image indicates the location of the Input Output daugh...

Page 37: ...ble off the palm rest and keyboard assembly Installing the Input Output daughter board FFC Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following images indicate the location of the I O daughter board FFC and provide a visual representation of the installation procedure Removing and installing components...

Page 38: ...cover 3 Install the SD card 4 Follow the procedure in After working inside your computer I O board Removing the Input Output board Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the fan 5 Remove the SSD About this task The following images indicate the location of the Input Output board and provide a visual represen...

Page 39: ...fingerprint reader board cable from the I O board if applicable 5 Lift the I O board off the palm rest and keyboard assembly Installing the Input Output board Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following images indicate the location of the I O board and provide a visual representation of the in...

Page 40: ...ace the two M2x3 5 screws that secure the display hinge to the palm rest and keyboard assembly Next steps 1 Install the SSD 2 Install the fan 3 Install the base cover 4 Install the SD card 5 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 SD card 3 Remove the base cove...

Page 41: ...y 4 Lift the speakers along with its cable from the palm rest and keyboard assembly Installing the speakers Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following images indicate the location of the speakers and provide a visual representation of the installation procedure Removing and installing compone...

Page 42: ...ll the battery 2 Install the base cover 3 Install the SD card 4 Follow the procedure in After working inside your computer Power button board Removing the power button with optional fingerprint reader Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the SSD 5 Remove the wireless card 6 Remove the I O board About this ...

Page 43: ...rest and keyboard assembly 5 Lift the power button with fingerprint reader along with its cable off the palmrest and keyboard assembly Installing the power button with optional fingerprint reader Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following images indicate the location of the power button with ...

Page 44: ... on the palmrest and keyboard assembly 4 Close the display hinge 5 Replace the two M2 5x5 screws that secure the display hinge to the palmrest and keyboard assembly Next steps 1 Install the I O board 2 Install the wireless card 3 Install the SSD 4 Install the base cover 5 Install the SD card 6 Follow the procedure in After working inside your computer Display assembly Removing the display assembly...

Page 45: ...Removing and installing components 45 ...

Page 46: ...Steps 1 Remove the four M2 5x5 screws that secure the display hinges to the palm rest and keyboard assembly 2 Disconnect the display cable from the system board 46 Removing and installing components ...

Page 47: ...s removed from the bottom chassis If any components in the display assembly malfunction and needs replacement the entire display assembly has to be replaced Installing the display assembly Aluminum Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following images indicate the location of the display assembly...

Page 48: ...Steps 1 Slide the display assembly at an angle and place the display assembly on the palm rest and keyboard assembly 48 Removing and installing components ...

Page 49: ...or not the power adapter port has fallen out of the system during subsequent removal procedures 4 Connect the display cable to the connector on the system board Next steps 1 Install the base cover 2 Install the SD card 3 Follow the procedure in After working inside your computer Removing the display assembly Plastic Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remo...

Page 50: ...50 Removing and installing components ...

Page 51: ... 5x5 screws that secure the display hinges to the palm rest and keyboard assembly 2 Disconnect the display cable and the speaker cable from the system board for systems with plastic chassis Removing and installing components 51 ...

Page 52: ...ce the system on a flat surface 6 Remove the display assembly from the palm rest and keyboard assembly Installing the display assembly Plastic Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following images indicate the location of the display assembly and provide a visual representation of the installatio...

Page 53: ...Steps 1 Slide the display assembly at an angle and place the display assembly on the palm rest and keyboard assembly Removing and installing components 53 ...

Page 54: ...board assembly 5 Route the speaker cable through the routing guides on the palm rest and keyboard assembly NOTE Ensure to route the speaker cable over the WLAN antenna cables 6 Connect the display cable to the connector on the system board Next steps 1 Install the wireless card 2 Install the SSD 3 Install the base cover 4 Install the SD card 5 Follow the procedure in After working inside your comp...

Page 55: ...astic scribe pry the inner side of the right hinge cap and remove it from the right hinge Installing the hinge caps Prerequisites If you are replacing a component remove the existing component before performing the installation procedure NOTE This procedure is applicable for systems with plastic chassis About this task The following images indicate the location of the hinge caps and provide a visu...

Page 56: ...ight hinge cap to the outer sides 4 Push the right hinge cap down until it clicks in place Next steps 1 Install the display assembly 2 Install the wireless card 3 Install the SSD 4 Install the memory modules 5 Install the base cover 6 Install the SD card 7 Follow the procedure in After working inside your computer 56 Removing and installing components ...

Page 57: ...ove the hinge caps About this task The following images indicate the location of the display bezel and provide a visual representation of the removal procedure Steps 1 Pry open the display bezel from the inner edge at the left and right sides of the display assembly 2 Pry open the display bezel from the inner edge at the top side of the display assembly 3 Continue to pry open the outer edge of the...

Page 58: ...s procedure is applicable for systems with plastic chassis About this task The following image indicates the location of the display bezel and provides a visual representation of the installation procedure Steps Align the display bezel with the display back cover and antenna assembly and then gently snap the display bezel into place Next steps 1 Install the hinge caps 2 Install the display assembl...

Page 59: ...fore working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the SSD 5 Remove the wireless card 6 Remove the display assembly 7 Remove the hinge caps 8 Remove the display bezel About this task The following images indicate the location of the hinge and provide a visual representation of the installation procedure Removing and installing components 59 ...

Page 60: ... Lift and remove the right hinge from the display assembly Installing the hinges 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 hinges and provide a visual representation of the installation procedure 60 Removing and installing components ...

Page 61: ... display assembly 4 Install the three M2 5x3 8 screws to secure the hinge to the display panel and back cover Next steps 1 Install the display bezel 2 Install the hinge caps 3 Install the display assembly 4 Install the wireless card 5 Install the SSD 6 Install the base cover 7 Install the SD card 8 Follow the procedure in After working inside your computer Removing and installing components 61 ...

Page 62: ...move the base cover 4 Remove the SSD 5 Remove the wireless card 6 Remove the display assembly 7 Remove the hinge caps 8 Remove the display bezel 9 Remove the hinges About this task The following images indicate the location of the display panel and provide a visual representation of the removal procedure 62 Removing and installing components ...

Page 63: ...rd peel back the Mylar tape securing the display cable on the rear of the display panel NOTE Ensure that the panel has a clean and smooth surface to rest on to prevent damage 6 Disconnect the display cable from the display panel assembly and lift the display panel away from the system NOTE Do not remove the metal brackets from the panel Installing the display panel Prerequisites If you are replaci...

Page 64: ...64 Removing and installing components ...

Page 65: ...all the hinges 2 Install the display bezel 3 Install the hinge caps 4 Install the display assembly 5 Install the wireless card 6 Install the SSD 7 Install the base cover 8 Install the SD card 9 Follow the procedure in After working inside your computer eDP cable Removing the eDP cable Plastic Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card 3 Remove ...

Page 66: ...le from the display cover Installing the eDP cable Plastic About this task The following image indicates the location of the eDP cable in a system shipped with plastic chassis and provides a visual representation of the installation procedure 66 Removing and installing components ...

Page 67: ...Install the hinge caps 5 Install the display assembly 6 Install the wireless card 7 Install the SSD 8 Install the memory modules 9 Install the base cover 10 Install the SD card 11 Follow the procedure in After working inside your computer Removing the eDP cable Aluminum Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card Removing and installing componen...

Page 68: ...of the eDP cable in a system shipped with an aluminum chassis and provides a visual representation of the removal procedure Steps 1 Disconnect the eDP cable from the camera 2 Peel and remove the eDP cable from the display cover Installing the eDP cable Aluminum About this task The following image indicates the location of the eDP cable in a system shipped with an aluminum chassis and provides a vi...

Page 69: ...display panel 2 Install the hinges 3 Install the display bezel 4 Install the hinge caps 5 Install the display assembly 6 Install the wireless card 7 Install the SSD 8 Install the memory modules 9 Install the base cover 10 Install the SD card 11 Follow the procedure in After working inside your computer Removing and installing components 69 ...

Page 70: ...on of the camera module in a system shipped with plastic chassis and provide a visual representation of the removal procedure Steps 1 Using the pull tab disconnect the camera cable from the camera module 2 Using a plastic scribe pry the camera module from the display assembly NOTE Start prying the camera module in a sequential order 1 2 3 as indicated on the display back cover 3 Lift the camera mo...

Page 71: ...the display bezel 5 Install the display hinge caps 6 Install the display assembly 7 Install the wireless card 8 Install the base cover 9 Install the SD card 10 Follow the procedure in After working inside your computer Removing the camera module Aluminum Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the wireless ca...

Page 72: ...e display back cover 2 Peel and unwrap the tape securing the camera module to the display back cover 3 Disconnect the camera cable from its connector 4 Lift the camera module Installing the camera module Aluminum Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following images indicate the location of the c...

Page 73: ...the camera module Next steps 1 Install the eDP cable 2 Install the display panel 3 Install the display hinges 4 Install the display bezel 5 Install the display hinge caps 6 Install the display assembly 7 Install the wireless card 8 Install the base cover 9 Install the SD card 10 Follow the procedure in After working inside your computer Removing and installing components 73 ...

Page 74: ...e display hinges 9 Remove the display panel 10 Remove the eDP cable plastic or aluminum whichever applicable About this task The following image indicates the location of the display cover and antenna assembly and provides a visual representation of the removal procedure Figure 1 Display cover plastic chassis NOTE The display cover and antenna assembly cannot be further disassembled If the WLAN an...

Page 75: ...chpad Removing the touchpad Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the battery About this task The following images indicate the location of the touchpad and provide a visual representation of the removal procedure Removing and installing components 75 ...

Page 76: ...the two screws M2x2 that secure the touchpad to the palm rest and keyboard assembly 5 Lift the touchpad from the palm rest and keyboard assembly Installing the touchpad Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following images indicate the location of the touchpad and provide a visual representation ...

Page 77: ...s on the palm rest and keyboard assembly 7 Replace the four M2x2 screws that secure the touchpad bracket to the palm rest and keyboard assembly Next steps 1 Install the battery 2 Install the base cover 3 Install the SD card 4 Follow the procedure in After working inside your computer Power adapter port Removing the power adapter port Prerequisites 1 Follow the procedure in Before working inside yo...

Page 78: ...er port from its slot on the palm rest and keyboard assembly Installing the power adapter port Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following images indicate the location of the power adapter port and provide a visual representation of the installation procedure 78 Removing and installing compone...

Page 79: ...Install the SSD 3 Install the base cover 4 Install the SD card 5 Follow the procedure in After working inside your computer System board Removing the system board Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the battery 5 Remove the memory modules 6 Remove the SSD 7 Remove the wireless card 8 Remove the fan 9 Remo...

Page 80: ...les 6 Keyboard FFC connector 7 Keyboard backlight FFC connector 8 Battery connector 9 Touchpad FFC connector 10 Hard drive FFC connector 11 Wireless connector 12 Speaker cable connector 13 Solid state drive connector The following images indicate the location of the system board and provide a visual representation of the removal procedure 80 Removing and installing components ...

Page 81: ... Flat cable d Keyboard backlight Flexible Printed cable for systems with backlit keyboard e Keyboard Flexible Printed cable f Power adapter port cable g eDP cable 2 Remove the two M2 5x5 screws from the right hinge 3 Remove the three M2x3 5 screws that secure the system board to the palm rest Removing and installing components 81 ...

Page 82: ...onent remove the existing component before performing the installation process About this task The following image indicates the connectors on your system board 1 Fan connector 2 I O board FFC connector 3 eDP connector 4 DC in port connector 5 Memory modules 6 Keyboard FFC connector 7 Keyboard backlight FFC connector 8 Battery connector 9 Touchpad FFC connector 10 Hard drive FFC connector 11 Wirel...

Page 83: ...he palm rest assembly 4 Replace the three M2x3 5 screws that secure the system board to the palm rest assembly 5 Connect the following cables to the system board a I O board Flexible Flat cable b Speaker cable c Touchpad Flexible Flat cable d Keyboard backlight Flexible Printed cable for systems with backlit keyboard e Keyboard Flexible Printed cable f Power adapter port cable g eDP cable Removing...

Page 84: ...y Prerequisites 1 Follow the procedure in Before working inside your computer 2 Remove the SD card 3 Remove the base cover 4 Remove the battery 5 Remove the memory modules 6 Remove the SSD 7 Remove the wireless card 8 Remove the fan 9 Remove the heat sink 10 Remove the I O board FFC 11 Remove the I O board 12 Remove the speakers 13 Remove the touchpad 14 Remove the display assembly 15 Remove the p...

Page 85: ...cement palm rest assembly Place the palm rest and keyboard assembly on a flat and clean surface and perform the post requisites to install the palm rest and keyboard assembly Next steps 1 Install the system board 2 Install the power button 3 Install the power adapter port 4 Install the display assembly 5 Install the touchpad 6 Install the speakers 7 Install the I O board 8 Install the I O board FF...

Page 86: ...15 Install the base cover 16 Install the SD card 17 Follow the procedure in After working inside your computer 86 Removing and installing components ...

Page 87: ...rivers and downloads When troubleshooting downloading or installing drivers it is recommended that you read the Dell Knowledge Based article Drivers and Downloads FAQ 000123347 3 Drivers and downloads 87 ...

Page 88: ...ing base devices BIOS overview The BIOS manages data flow between the computer s operating system and attached devices such as hard disk video adapter keyboard mouse and printer Entering BIOS setup program About this task Turn on or restart your computer and press F2 immediately Navigation keys NOTE For most of the System Setup options changes that you make are recorded but do not take effect unti...

Page 89: ...plays the current date in mm dd yyyy format BIOS Version Displays the BIOS version Product Name Displays the model number of your computer Service Tag Displays the service tag of your computer Asset Tag Displays the asset tag of your computer CPU Type Displays the processor type CPU Speed Displays the processor speed CPU ID Displays the processor identification code CPU Cache L1 Cache Displays the...

Page 90: ... messages when you use AC adapters that are not supported by your computer Default Enabled Function Key Behavior Allows you to set function key or multimedia key as the default function key behavior Default Multimedia key Keyboard Illumination Selects the operating mode of the keyboard illumination feature Default Dim Keyboard Backlight with AC Selects the timeout value for the keyboard backlight ...

Page 91: ...esolution Auto OS Recovery Threshold Controls the automatic boot flow for SupportAssist System Resolution Console and for the Dell OS Recovery tool Default 2 SupportAssist OS Recovery Enables or disables the boot flow for the SupportAssist OS Recovery tool in the even of certain system errors Default Disabled CPU TCC offset Default 0 Table 6 System setup options Security menu Security Admin Passwo...

Page 92: ...options Enable Pre Boot DMA support Enable or disable the pre boot DMA support Default Enabled Enable OS kernel DMA support Enable or disable the OS kernel DMA support Default Enabled UEFI Firmware Capsule Updates Enables or disables BIOS updates through UEFI capsule update packages Default Enabled Secure Boot Enables or disables Secure Boot Default Enabled Table 7 System setup options Boot menu B...

Page 93: ...tegory drop down list select BIOS 6 Select the latest version of BIOS and click Download to download the BIOS file for your computer 7 After the download is complete browse the folder where you saved the BIOS update file 8 Double click the BIOS update file icon and follow the on screen instructions For more information see knowledge base article 000124211 at www dell com support Updating the BIOS ...

Page 94: ...n the System Setup before attempting to delete or change the existing System and or Setup password You cannot delete or change an existing System or Setup password if the Password Status is Locked About this task To enter the System Setup press F12 Steps 1 In the System BIOS or System Setup screen select System Security and press Enter The System Security screen is displayed 2 In the System Securi...

Page 95: ...NOTE For information on how to reset Windows or application passwords refer to the documentation accompanying Windows or your application BIOS setup 95 ...

Page 96: ...the battery Do not bend the battery Do not use tools of any type to pry on or against the battery If a battery gets stuck in a device as a result of swelling do not try to free it as puncturing bending or crushing a battery can be dangerous Do not attempt to reassemble a damaged or swollen battery into a laptop Swollen batteries that are covered under warranty should be returned to Dell in an appr...

Page 97: ...sues error codes are displayed Note the error code and validation number and contact Dell Built in self test BIST M BIST M BIST Built In Self Test is the system board s built in self test diagnostics tool that improves the diagnostics accuracy of system board embedded controller EC failures NOTE M BIST can be manually initiated before POST Power On Self Test How to run M BIST NOTE M BIST must be i...

Page 98: ...you notice screen abnormalities like flickering distortion clarity issues fuzzy or blurry image horizontal or vertical lines color fade etc it is always a good practice to isolate the LCD screen by running the Built In Self Test BIST How to invoke LCD BIST Test 1 Power off the Dell laptop 2 Disconnect any peripherals that are connected to the laptop Connect only the AC adapter charger to the lapto...

Page 99: ...7 LCD failure SBIOS message Replace the LCD module 2 8 LCD failure EC detection of power rail failure Replace the system board 3 1 CMOS battery failure Reset the main battery connection If problem persists replace the main battery 3 2 PCI or Video card chip failure Replace the system board 3 3 BIOS Recovery image not found Flash latest BIOS version If problem persists replace the system board 3 4 ...

Page 100: ...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 serviceabilitytools Click SupportAssist and then click SupportAssist OS Recovery Real Time Clock RTC Reset The Real Time Clock RTC reset function allows you or the service technician to recover...

Page 101: ...or replacing any components in your computer Draining residual flea power also known as a performing a hard reset is also a common troubleshooting step if your computer does not power on or boot into the operating system To drain residual flea power perform a hard reset Steps 1 Turn off your computer 2 Disconnect the power adapter from your computer 3 Remove the base cover 4 Remove the battery 5 P...

Page 102: ...Service Tag or Express Service Code at www dell com support For more information on how to find the Service Tag for your computer see Locate the Service Tag on your computer Dell knowledge base articles for a variety of computer concerns 1 Go to www dell com support 2 On the menu bar at the top of the Support page select Support Knowledge Base 3 In the Search field on the Knowledge Base page type ...

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