To Next PageTo Next PageWhat to do if Dell Laptop has power rail failure?
If your Dell Laptop experiences a power rail failure, begin by flashing the latest BIOS version. If the issue persists, the next step is to replace the system board.
How to resolve SBIOS flash corruption on a Dell NOT21990 Laptop?
To resolve SBIOS flash corruption on your Dell Laptop, flash the latest BIOS version. If the problem continues, replace the system board.
What to do if my Dell NOT21990 Laptop has invalid memory installed?
If your Dell Laptop indicates that invalid memory is installed, replace the memory module.
How to fix LCD failure on Dell Laptop?
To fix an LCD failure on your Dell Laptop, replace the LCD module.
How to repair LCD power rail failure on Dell NOT21990 Laptop?
To repair an LCD power rail failure on your Dell Laptop, replace the LCD module.
How to fix Memory/RAM failure on Dell NOT21990?
To fix a memory or RAM failure on your Dell laptop, reset and swap the memory modules among the slots. If the problem continues, replace the memory module.
What to do if my Dell Laptop shows error code indicating CPU failure?
If your Dell Laptop shows an error code indicating CPU failure, replace the system board.
What to do if Flash corruption detected by SBIOS on Dell NOT21990?
If flash corruption is detected by SBIOS on your Dell laptop, press the power button for over 25 seconds to do an RTC reset. If the issue persists, replace the system board. You can also disconnect all power sources (AC, battery, coin cell) and drain flea power by pressing and holding the power button for 3-5 seconds. Also, you can try running "BIOS recovery from USB", and the instructions are in the website Dell support.
What to do if my Dell NOT21990 battery gets stuck due to swelling?
If the battery gets stuck in your Dell laptop due to swelling, do not try to free it. Puncturing, bending, or crushing a battery can be dangerous.
How to fix BIOS Recovery image not found on Dell NOT21990 Laptop?
If the BIOS Recovery image is not found on your Dell laptop, flash the latest BIOS version. If the problem persists, replace the system board.
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