Service Manual
Table Of Contents
- Latitude 5420 Service Manual
- Contents
- Working inside your computer
- Major components of your computer
- Removing and installing components
- Recommended tools
- Screw list
- Disassembly and reassembly
- Subscriber Identity Module (SIM) card
- Micro Secure Digital (SD) Card
- Base cover
- WLAN card
- WWAN card
- Solid-state drive
- Memory modules
- Battery
- Battery cable
- Assembly inner frame
- LED board
- Heat sink
- Speakers
- System board
- Power-button board
- Smart card reader
- Keyboard assembly
- Keyboard bracket
- Display assembly
- Display bezel
- Display panel
- Camera/microphone module
- eDP/display cable
- Sensor board
- Display hinges
- Display back cover
- Dummy SIM-card slot filler
- Palm-rest assembly
- Software
- BIOS setup
- Troubleshooting
- Getting help and contacting Dell
Software
This chapter details the supported operating systems along with instructions on how to install the drivers.
Topics:
• Operating system
• Downloading the drivers
Operating system
Your Latitude 5420 supports the following operating systems:
● Windows 10 Pro, 64-bit
● Windows 10 Home, 64-bit
● Windows 10 Pro Education, 64-bit
● Windows 10 Enterprise N, 64-bit
● Ubuntu Linux 20.04 LTS, 64-bit
Downloading the drivers
Steps
1. Turn on your computer.
2. Go to www.dell.com/support.
3. Enter the Service Tag of your computer, and then click Submit.
NOTE: If you do not have the Service Tag, use the auto-detect feature or manually browse for your computer model.
4. Click Drivers & downloads.
5. Click the Detect Drivers button.
6. Review and agree to the Terms and Conditions to use SupportAssist, then click Continue.
7. If necessary, your computer starts to download and install SupportAssist.
NOTE: Review on-screen instructions for browser-specific instructions.
8. Click View Drivers for My System.
9. Click Download and Install to download and install all driver updates detected for your computer.
10. Select a location to save the files.
11. If prompted, approve requests from User Account Control to make changes on the system.
12. The application installs all drivers and updates identified.
NOTE:
Not all files can be installed automatically. Review the installation summary to identify if manual installation is
necessary.
13. For manual download and installation, click Category.
14. From the drop-down list, select the preferred driver.
15. Click Download to download the driver for your computer.
16. After the download is complete, navigate to the folder where you saved the driver file.
17. Double-click the driver file icon and follow the instructions on the screen to install the driver.
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86 Software