To Next PageTo Next PageHow to return swollen battery to Dell NOT21991 Laptop under warranty?
If you have a swollen battery covered under warranty for your Dell Laptop, return it to Dell in an approved shipping container provided by Dell.
What to do if there is Real Time Clock (RTC) power failure on Dell NOT21991?
To resolve a Real Time Clock (RTC) power failure on your Dell Laptop, replace the battery.
How to fix WiFi connectivity issues on a Dell Laptop?
If you are experiencing WiFi connectivity issues with your Dell Laptop, try performing a WiFi power cycle.
What to do if SBIOS flash is corrupted on Dell NOT21991?
If the SBIOS flash is corrupted on your Dell laptop, begin by flashing the latest BIOS version. Should the problem persist, the next step is to replace the system board.
How to fix Flash corruption detected by SBIOS on Dell NOT21991 Laptop?
If your Dell Laptop detects flash corruption via SBIOS, press the power button for over 25 seconds to perform an RTC reset. If the problem persists, replace the system board. Alternatively, disconnect all power sources (AC, battery, coin cell) and drain flea power by pressing and holding down the power button for 3-5 seconds to ensure all power is drained.
How to fix no memory/RAM detected on Dell NOT21991 Laptop?
If your Dell Laptop is not detecting memory or RAM, first ensure that the memory module is correctly installed. If the problem continues, try replacing the memory module.
What to do if Dell NOT21991 Laptop System BIOS Flash incomplete?
If the System BIOS Flash is incomplete on your Dell laptop, this indicates flash corruption detected by SBIOS. If the problem persists, the system board may need to be replaced.
How to resolve SBIOS flash corruption on a Dell 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 Laptop does not power on?
If your Dell Laptop does not power on or boot into the operating system, perform a hard reset to drain residual flea power.
How to fix a Dell NOT21991 Laptop memory/RAM failure?
To address a memory/RAM failure in your Dell Laptop, try resetting and swapping the memory modules among the slots. If the issue continues, consider replacing the memory module.
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