CMOS Reset (502) The CMOS checksum is invalid You have the option of pressing enter to proceed without waiting 15 seconds. To resolve the CMOS Reset Error (502), restore the BIOS. Press enter to restart the PC. If the error displays after restarting, try to restore the BIOS using a USB drive.
CMOS Reset (502) (La suma de comprobación de CMOS no es válida. CMOS se restablecerá a la configuración predeterminada y se reiniciará. Compruebe las opciones de configuración del BIOS para comprobar si han cambiado.
”Reset CMOS (502)” No matter how many people restart their computer, they get the same error message. The reason could be that the CMOS values ??are often corrupted or the CMOS chip is bad/died!
CMOS will be set to default and the system will reboot. Check the basic BIOS settings if they have changed. Reset CMOS (502) ENTER – Reboot the system.
You can start the motherboard battery CR2032 (MB), if you just let the PC rest for about two minutes, reinstall the battery. Or install a new MB battery. This will reset CMOS. Or reset BIOS settings to default. If the checksum message error persists after performing the above steps, HP may need to take action.
How do you fix CMOS reset 502?
Thus, simply by resetting the BIOS settings to default, you can easily fix this problem.
Why do I keep getting CMOS reset ( 502 ) Error?
“Reset CMOS (502)” No matter how many times you restart your computer, someone will get the same error message. This may be because the CMOS values ??are wrong or the CMOS chip is faulty/faulty.
What is CMOS 502?
Reset CMOS (502) Invalid CMOS checksum During the boot process, the system performs a BIOS checksum check. To fix the CMOS reset error (502), restore the BIOS. Press Enter and restart your PC.

Ermias is a tech writer with a passion for helping people solve Windows problems. He loves to write and share his knowledge with others in the hope that they can benefit from it. He’s been writing about technology and software since he was in college, and has been an avid Microsoft fan ever since he first used Windows 95.