CMOS Error 502 Solved 🤔

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CMOS

In some cases, the automatic BIOS recovery fails because the Complementary Metal Oxide Semiconductor (CMOS) data is corrupted. The CMOS stores BIOS settings.

Error 502

CMOS error 502 is an error that occurs when the CMOS data is corrupted. To fix this error, you need to reset/restore the BIOS. 

Resetting the BIOS

Use this procedure to reset the CMOS and recover the BIOS.

  • Turn off the computer.
  • Press and hold the Windows + V keys, and then simultaneously press and hold the power button. 
  • After 2 to 3 seconds, continue to press and hold the Windows + V keys, but release the power button.
  • When the CMOS Reset screen displays or you hear beeping sounds, release the Windows + V keys.
  • At the completion of a successful CMOS Reset, a message similar to the following one is displayed.
Image showing a successful CMOS reset.
  • Press enter to restart the computer. If this does not recover your computer, see Recover the BIOS
If the issue persists, I'm afraid this is a hardware issue. Please reach out to the HP Technical Support team in your region regarding the service/replacement options.

Hope it helps 🫡

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