Dell Latitude 7420 Setup And Specifications Guide

Dell Latitude 7420

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Latitude 7420

Setup and specifications guide

Regulatory Model: P135G/P136G

Regulatory Type: P135G001/P136G001

January 2021

Rev. A00

Other manuals for Dell Latitude 7420

Service Manual85 pages

Setup And Specifications26 pages

Questions and Answers:

K
Kristie ParsonsAug 1, 2025
What to do if Dell Latitude 7420 battery is swollen?
- B
  brownbrandyAug 2, 2025
  If you observe swollen rechargeable Li-ion batteries in your Dell Laptop, discontinue using the laptop immediately. Then, discharge it by disconnecting the AC adapter and allowing the battery to drain completely. It is also recommended to replace and properly dispose of the swollen batteries. You may also contact Dell product support to explore options for replacing the swollen battery under your warranty or service contract.
A
Ashley JohnsonAug 6, 2025
What to do if TPM detection failure on Dell Latitude 7420?
- D
  Douglas KingAug 6, 2025
  If you are experiencing a TPM detection failure on your Dell Laptop, try the following steps: First, disconnect all power sources (AC, battery, coin cell) and drain flea power by pressing and holding down the power button. Then, run the Dell Support Assist/Dell Diagnostics tool. If the problem persists after these steps, flash the latest BIOS version. If the issue still continues, confirm that the memory module is installed properly, and try resetting and swapping memory modules amongst the slots. As a last resort, reset the CMOS battery connection. If these steps do not resolve the problem, it may be necessary to replace the system board, the LCD module, or the RTS battery.
K
Kyle Gonzalez Jr.Aug 10, 2025
What to do if Dell Latitude 7420 has memory/RAM failure?
- Z
  Zachary KnightAug 10, 2025
  In case of a memory or RAM failure in your Dell Laptop, try resetting and swapping the memory modules among the slots. If the issue persists, consider replacing the memory module.
S
Steven HardyAug 15, 2025
How to fix system board failure on a Dell Latitude 7420?
- E
  ericamorganAug 15, 2025
  If you are experiencing a system board failure, including BIOS corruption or ROM errors, on your Dell Laptop, flash the latest BIOS version. If the problem continues after updating the BIOS, replace the system board.
G
Gabriella BakerAug 19, 2025
What to do if Dell Latitude 7420 says invalid memory installed?
- L
  lori86Aug 19, 2025
  If your Dell Laptop indicates that invalid memory is installed, try resetting and swapping the memory modules among the slots. If the problem persists, replace the memory module.
D
Diana FischerAug 23, 2025
What to do if BIOS Recovery image is not found on Dell Latitude 7420?
- J
  James HayesAug 23, 2025
  If the BIOS recovery image is not found on your Dell Laptop, flash the latest BIOS version.
A
Ashley ClarkAug 27, 2025
What to do in case of power rail failure on Dell Laptop?
- T
  Tom WhiteAug 27, 2025
  If your Dell Laptop is experiencing a power rail failure, replace the system board.

Dell Latitude 7420 Specifications

General

Harmonized System (HS) code	84713000

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