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- Cmos 502 error, stuck on blue screen since yesterday, laptop...

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12-06-2023 01:31 PM
My screen suddenly shut off yesterday and I haven't been able to use it properly ever since. When I turn it on I'm told how my laptop didn't shut off correctly and that the error is cmos 502 and I need to use a bitlocker to use my laptop. Ives tried to find my bitlocker but it isn't showing up (my Microsoft account has the same driver ID but the bitlocker doesn't show up). I don't mind losing all my files and data- I just want to be able to use my laptop again.
12-09-2023 07:22 AM
Hi @Tanalize,
Welcome to the HP Support Community.
Do not worry, I'd be happy to help you!
I understand that you are getting CMOS reset 502
Let's try some steps to help you.
HP Recommended Solution: HP PCs - 500, 501, or 502 error displays on a blue screen
Reset the CMOS
In some cases, the automatic BIOS recovery fails because the Complementary Metal Oxide Semiconductor (CMOS) data is corrupted. The CMOS stores BIOS settings. 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.
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 HP phone support for further assistance.
Hope this helps! Keep me posted for further assistance.
Please click “Accepted Solution” if you feel my post solved your issue, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!
Nal_NR-Moderator
I am an HP Employee