Dell Inspiron 14 5420, Service Manual

Page 1: ...Inspiron 14 5420 Service Manual NVIDIA GeForce RTX 2050 Regulatory Model P157G Regulatory Type P157G001 P157G002 July 2022 Rev A00 ...

Page 2: ...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 Technologies Dell and other trademarks are trademarks of Dell Inc or its subsidiaries Other trademarks may be trademarks of their respective owners ...

Page 3: ...ing the M 2 2230 solid state drive 18 Installing the M 2 2230 solid state drive 20 Removing the M 2 2280 solid state drive 21 Installing the M 2 2280 solid state drive 23 Memory module 24 Removing the memory module 24 Installing the memory module 25 Wireless card 26 Removing the wireless card 26 Installing the wireless card 27 Display assembly 28 Removing the display assembly 28 Installing the dis...

Page 4: ...ivers and downloads 54 Chapter 5 System setup 55 BIOS overview 55 Entering BIOS setup program 55 Navigation keys 55 Boot Sequence 56 System setup options 56 System and setup password 60 Assigning a system setup password 60 Deleting or changing an existing system setup password 61 Clearing BIOS System Setup and System passwords 61 Updating the BIOS 62 Updating the BIOS in Windows 62 Updating the BI...

Page 5: ...ron 14 5420 will differ depending on the graphics card configuration you have ordered This manual only applies to computers shipped with a NVIDIA GeForce RTX 2050 graphics card NOTE The NVIDIA GeForce RTX 2050 configuration for the Inspiron 14 5420 is only shipped in certain regions 1 Identifying the correct manual for your Inspiron 14 5420 5 ...

Page 6: ...ng 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 locking tabs o...

Page 7: ...is 1 6 W NOTE Tests for SAR are conducted using standard operating positions accepted by the FCC with the device transmitting at its highest certified power level in all tested frequency bands 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 slig...

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: ...and ensure that no stray screws remain inside your computer 2 Connect any external devices peripherals or cables you removed before working on your computer 3 Replace any media cards discs or any other parts that you removed before working on your computer 4 Connect your computer and all attached devices to their electrical outlets NOTE To exit service mode ensure to connect the AC adapter to the ...

Page 10: ...e configuration you ordered Recommended tools The procedures in this document may require the following tools Phillips screwdriver 0 Phillips screwdriver 1 Plastic scribe Major components of Inspiron 14 5420 The following image shows the major components of Inspiron 14 5420 3 10 Removing and installing components ...

Page 11: ...1 Base cover 2 Right speaker 3 Right fan Removing and installing components 11 ...

Page 12: ...sentative for purchase options 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 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...

Page 13: ...er Prerequisites 1 Follow the procedure in Before working inside your computer NOTE Ensure that your computer is in Service Mode For more information see step 6 in Before working inside your computer About this task NOTE Before removing the base cover ensure that there is no microSD card installed in the microSD card slot on your computer The following image s indicate the location of the base cov...

Page 14: ...14 Removing and installing components ...

Page 15: ...left and continue to work on the sides to open the base cover 4 Lift and slide the base cover off the palm rest and keyboard assembly Installing the base cover Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate the location of the base cover and provides a visual representation of th...

Page 16: ...utions CAUTION Exercise caution when handling Lithium ion batteries Discharge 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 e...

Page 17: ...dle and replace swollen Lithium ion batteries see Handling swollen Lithium ion batteries Removing the battery Prerequisites 1 Follow the procedure in Before working inside your computer NOTE Ensure that your computer is in Service Mode For more information see step 6 in Before working inside your computer 2 Remove the base cover About this task NOTE Before removing the base cover ensure that there...

Page 18: ...ard assembly 3 Replace the five screws M2x3 that secure the battery to the palm rest and keyboard assembly 4 Connect the battery cable to the system board 5 Adhere the tape that secures the battery cable to the system board Next steps 1 Install the base cover 2 Follow the procedure in After working inside your computer Solid state drive Removing the M 2 2230 solid state drive Prerequisites 1 Follo...

Page 19: ...th the computer If you are replacing the M 2 2230 solid state drive with a new M 2 2230 solid state drive use the existing mounting bracket to install the latter M 2 2280 solid state drive If you are replacing the M 2 2280 solid state drive shipped with the computer with an M 2 2230 solid state drive a mounting bracket for the M 2 2230 solid state drive is required Please contact Dell support to p...

Page 20: ... 2 solid state drive installed on your computer depends on the configuration ordered The M 2 slot supports one of the following solid state drives M 2 2230 solid state drive A mounting bracket for the M 2 2230 solid state drive is required The mounting bracket is provided if the M 2 2230 solid state is shipped with the computer If you are replacing the M 2 2230 solid state drive with a new M 2 223...

Page 21: ...de the M 2 2230 solid state drive bracket into the M 2 card slot on the system board 5 Place the M 2 thermal shield on the M 2 2230 solid state drive bracket 6 Replace the screw M2x3 that secures the M 2 thermal shield to the system board Next steps 1 Install the base cover 2 Follow the procedure in After working inside your computer Removing the M 2 2280 solid state drive Prerequisites 1 Follow t...

Page 22: ...tate drive with a new M 2 2230 solid state drive use the existing mounting bracket to install the latter M 2 2280 solid state drive If you are replacing the M 2 2280 solid state drive shipped with the computer with an M 2 2230 solid state drive a mounting bracket for the M 2 2230 solid state drive is required Please contact Dell support to purchase the mounting bracket for the M 2 2230 solid state...

Page 23: ...nstall the latter M 2 2280 solid state drive If you are replacing the M 2 2280 solid state drive shipped with the computer with an M 2 2230 solid state drive a mounting bracket for the M 2 2230 solid state drive is required Please contact Dell support to purchase the mounting bracket for the M 2 2230 solid state drive The following image s indicate the location of the M 2 2280 solid state drive an...

Page 24: ...edure in Before working inside your computer NOTE Ensure that your computer is in Service Mode For more information see step 6 in Before working inside your computer 2 Remove the base cover About this task The following image s indicate the location of the memory module and provides a visual representation of the removal procedure 24 Removing and installing components ...

Page 25: ...he memory module Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate the location of the memory module and provides a visual representation of the installation procedure Steps 1 Lift the Mylar to access the memory module slot 2 Align the notch on the memory module with the tab on the ...

Page 26: ...d Prerequisites 1 Follow the procedure in Before working inside your computer NOTE Ensure that your computer is in Service Mode For more information see step 6 in Before working inside your computer 2 Remove the base cover About this task The following image s indicate the location of the wireless card and provides a visual representation of the removal procedure Steps 1 Remove the screw M2x3 that...

Page 27: ...allation process About this task The following image s indicate the location of the wireless card and provides a visual representation of the installation procedure Steps 1 Connect the antenna cables to the wireless card Table 2 Antenna cable color scheme Connectors on the wireless card Antenna cable color Silkscreen marking Main White MAIN white triangle Auxiliary Black AUX black triangle 2 Align...

Page 28: ...n After working inside your computer Display assembly Removing the display assembly Prerequisites 1 Follow the procedure in Before working inside your computer NOTE Ensure that your computer is in Service Mode For more information see step 6 in Before working inside your computer 2 Remove the base cover About this task The following image s indicate the location of the display assembly and provide...

Page 29: ...x5 that secure the display assembly to the palm rest and keyboard assembly 5 Gently lift the palm rest and keyboard assembly off the display assembly Installing the display assembly Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate the location of the display assembly and provides a...

Page 30: ...Steps 1 Place the computer on the edge of a table 30 Removing and installing components ...

Page 31: ...pter port Removing the power adapter port Prerequisites 1 Follow the procedure in Before working inside your computer NOTE Ensure that your computer is in Service Mode For more information see step 6 in Before working inside your computer 2 Remove the base cover 3 Remove the display assembly 4 Remove the heat sink About this task The following image s indicate the location of the power adapter por...

Page 32: ...of the installation procedure Steps 1 Place the power adapter port along with its cable into the slot on the palm rest and keyboard assembly 2 Route the power adapter port cable through the routing guide on the palm rest and keyboard assembly 3 Adhere the tape that secures the power adapter port cable to the palm rest and keyboard assembly 4 Connect the power adapter port cable to the system board...

Page 33: ...stem board 2 Open the latch and disconnect the I O board cable from the system board 3 Open the latch and disconnect the I O board cable from the I O board 4 Lift the I O board cable off the system board 5 Open the latch and disconnect the fingerprint reader cable from the I O board NOTE This step is only applicable to computers shipped with a fingerprint reader 6 Remove the two screws M2x3 that s...

Page 34: ...p is only applicable to computers shipped with a fingerprint reader 5 Connect the I O board cable to the I O board and close the latch 6 Connect the I O board cable to the system board and close the latch 7 Adhere the tape that secures the I O board cable connector latch to the system board Next steps 1 Install the heat sink 2 Install the base cover 3 Follow the procedure in After working inside y...

Page 35: ...e the left fan to the palm rest and keyboard assembly 3 Lift the left fan off the palm rest and keyboard assembly Installing the left fan Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate the location of the left fan and provides a visual representation of the installation procedure...

Page 36: ...t steps 1 Install the base cover 2 Follow the procedure in After working inside your computer Removing the right fan Prerequisites 1 Follow the procedure in Before working inside your computer NOTE Ensure that your computer is in Service Mode For more information see step 6 in Before working inside your computer 2 Remove the base cover About this task The following image s indicate the location of...

Page 37: ...ight fan off the palm rest and keyboard assembly Installing the right fan Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate the location of the fan and provides a visual representation of the installation procedure Removing and installing components 37 ...

Page 38: ...edure in Before working inside your computer NOTE Ensure that your computer is in Service Mode For more information see step 6 in Before working inside your computer 2 Remove the base cover About this task CAUTION 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 not touch the heat t...

Page 39: ...e 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 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 following image s indicate the location of the hea...

Page 40: ...e system board Next steps 1 Install the base cover 2 Follow the procedure in After working inside your computer Power button board Removing the power button board Prerequisites 1 Follow the procedure in Before working inside your computer NOTE Ensure that your computer is in Service Mode For more information see step 6 in Before working inside your computer 2 Remove the base cover 3 Remove the dis...

Page 41: ...tton board and its cable off the palm rest and keyboard assembly Installing the power button board Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate the location of the power button board and provides a visual representation of the installation procedure Removing and installing comp...

Page 42: ...l fingerprint reader Removing the power button with optional fingerprint reader Prerequisites 1 Follow the procedure in Before working inside your computer NOTE Ensure that your computer is in Service Mode For more information see step 6 in Before working inside your computer 2 Remove the base cover 3 Remove the heat sink 4 Remove the left fan 5 Remove the display assembly 6 Remove the power butto...

Page 43: ...lm rest and keyboard assembly 5 Peel the tape that secures the fingerprint reader cable to the palm rest and keyboard assembly 6 Lift the power button with optional fingerprint reader off the palm rest 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 pro...

Page 44: ...eps 3 to 5 are applicable to computers shipped with a fingerprint reader Next steps 1 Install the power button board 2 Install the display assembly 3 Install the left fan 4 Install the heat sink 5 Install the base cover 6 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 NOTE...

Page 45: ...splay cable 3 Right fan cable 4 Battery cable 5 Keyboard cable 6 Keyboard backlight cable 7 M 2 solid state drive card slot 8 M 2 wireless card cable 9 Speaker cable 10 Touchpad cable 11 I O board cable 12 Left fan cable 13 Power button cable The following image s indicate the location of the system board and provides a visual representation of the removal procedure Removing and installing compone...

Page 46: ... the power adapter port cable from the system board 4 Peel off the tape that secures the display cable connector latch to the system board 5 Open the latch and disconnect the display cable from the system board 6 Remove the two screws M2x4 that secure the Type C bracket to the system board 7 Lift the Type C port bracket off the system board 46 Removing and installing components ...

Page 47: ...e the three screws M2x2 that secure the system board to the palm rest and keyboard assembly 17 Lift the system board at angle off the palm rest and keyboard assembly to clear the ports on the system board from the slots on the palm rest and keyboard assembly Installing the system board Prerequisites If you are replacing a component remove the existing component before performing the installation p...

Page 48: ...des a visual representation of the installation procedure Steps 1 Install the system board at an angle and ensure that the ports are properly aligned with the port openings 2 Align the screw holes on the system board with the screw holes on the palm rest and keyboard assembly 48 Removing and installing components ...

Page 49: ... 18 Adhere the tape that secures the I O board cable connector latch to the system board Next steps 1 Install the heat sink 2 Install the right fan 3 Install the wireless card 4 Install the M 2 2230 solid state drive or the M 2 2280 solid state drive 5 Install the memory module 6 Install the battery 7 Install the base cover 8 Follow the procedure in After working inside your computer Speakers Remo...

Page 50: ...from the routing guides on the palm rest and keyboard assembly 5 Lift the speakers along with their cables 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 process About this task The following image s indicate the location of the speakers and provides a visual representat...

Page 51: ...ht fan 3 Install the wireless card 4 Install the battery 5 Install the base cover 6 Follow the procedure in After working inside your computer Palm rest and keyboard assembly Removing the palm rest and keyboard assembly Prerequisites 1 Follow the procedure in Before working inside your computer NOTE Ensure that your computer is in Service Mode For more information see step 6 in Before working insi...

Page 52: ... in Prerequisites you are left with the palm rest and keyboard assembly NOTE The palm rest and keyboard assembly consists of the following Palm rest Keyboard Touchpad Installing the palm rest and keyboard assembly Prerequisites If you are replacing a component remove the existing component before performing the installation process About this task The following image s indicate the location of the...

Page 53: ...nstall the speakers 2 Install the system board 3 Install the power button with optional fingerprint reader 4 Install the power button board 5 Install the left fan and the right fan 6 Install the I O board 7 Install the power adapter port 8 Install the heat sink 9 Install the display assembly 10 Install the wireless card 11 Install the battery 12 Install the base cover 13 Follow the procedure in Af...

Page 54: ...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 4 54 Drivers and downloads ...

Page 55: ...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 56: ... Overview BIOS Version Displays the BIOS version number Service Tag Displays the Service Tag of the computer Asset Tag Displays the Asset Tag of the computer Manufacture Date Displays the manufacture date of the computer Ownership Date Displays the ownership date of the computer Express Service Code Displays the express service code of the computer Ownership Tag Displays the ownership tag of the c...

Page 57: ...mory Displays the video memory information of the computer Wi Fi Device Displays the Wi Fi device installed in the computer Native Resolution Displays the native resolution of the computer Video BIOS Version Displays the video BIOS version of the computer Audio Controller Displays the audio controller information of the computer Bluetooth Device Displays whether a Bluetooth device is installed in ...

Page 58: ...puter date in MM DD YYYY format Changes to the date take effect immediately Time Sets the computer time in HH MM SS 24 hour format You can switch between 12 hour and 24 hour clock Changes to the time take effect immediately Camera Enable Camera Enables or disables the camera By default Enable Camera is selected Audio Enables or disables all integrated audio controller Default ON Enable Microphone ...

Page 59: ...ange or delete the system password Internal HDD 1 Password Enables the user to set change or delete the Internal HDD 1 password Table 10 System setup options Update Recovery menu Update Recovery SupportAssist OS Recovery Enables or disables the boot flow for SupportAssist OS Recovery tool in the event of certain system error Default ON BIOSConnect Enables or disables cloud Service OS recovery if t...

Page 60: ...ent Log Clear Thermal Event Log Select keep or clear Thermal events Default Keep Power Event Log Clear POWER Event Log Select keep or clear Power events Default Keep System and setup password Table 14 System and setup password Password type Description System password Password that you must enter to log on to your system Setup password Password that you must enter to access and make changes to the...

Page 61: ...ing System or Setup password if the Password Status is Locked About this task To enter the System Setup press F12 immediately after a power on or reboot 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 Security screen verify that Password Status is Unlocked 3 Select System Password update or delete the ...

Page 62: ...the bootable USB drive 4 Connect the bootable USB drive to the computer that needs the BIOS update 5 Restart the computer and press F12 6 Select the USB drive from the One Time Boot Menu 7 Type the BIOS setup program filename and press Enter The BIOS Update Utility appears 8 Follow the on screen instructions to complete the BIOS update Updating the BIOS from the F12 One Time boot menu Update your ...

Page 63: ... off state insert the USB drive where you copied the flash into a USB port of the computer 2 Turn on the computer and press F12 to access the One Time Boot Menu select BIOS Update using the mouse or arrow keys then press Enter The flash BIOS menu is displayed 3 Click Flash from file 4 Select external USB device 5 Select the file and double click the flash target file and then click Submit 6 Click ...

Page 64: ...o not apply pressure to the surface of 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 warrant...

Page 65: ...following diagnostic light codes and recommended solutions are intended for Dell service technicians to troubleshoot problems You should only perform troubleshooting and repairs as authorized or directed by the Dell technical support team Damage due to servicing that is not authorized by Dell is not covered by your warranty Table 15 Diagnostic light codes Diagnostic light codes Amber white Problem...

Page 66: ...View error messages that indicate if problems were encountered during the test NOTE Some tests for specific devices require user interaction Ensure that you are present at the computer terminal when the diagnostic tests are performed For more information see SupportAssist Pre Boot System Performance Check Recovering the operating system When your computer is unable to boot to the operating system ...

Page 67: ...Steps 1 Turn off your computer 2 Turn off the modem 3 Turn off the wireless router 4 Wait for 30 seconds 5 Turn on the wireless router 6 Turn on the modem 7 Turn on your computer Troubleshooting 67 ...

Page 68: ... 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...