CMOS 502 Invalid Checksum and Random restarts (2025)

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CMOS 502 Invalid Checksum and Random restarts

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CMOS 502 Invalid Checksum and Random restarts (3)

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CMOS 502 Invalid Checksum and Random restarts (5)

Aryan461

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‎03-11-202509:13 PM

CMOS 502 Invalid Checksum and Random restarts (6) HP Recommended

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Product: HP Pavilion x360 Convertible Laptop PC 14-dh0107tu

Computer: HP pavilion 14dh CPU i3 8th Gen RAM: 16gb OS: Arch Linux

Issue: The issue when my computer boots it sometimes shows "CMOS invalid Checksum CMOS ERROR 502 Reset". When I move(or slam the table) my laptop is restarts.

https://youtube.com/shorts/5Zp4RvjvYZA

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I have the same question

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CMOS 502 Invalid Checksum and Random restarts (7)

CMOS 502 Invalid Checksum and Random restarts (8)BeemerBiker

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‎03-11-202510:29 PM

CMOS 502 Invalid Checksum and Random restarts (9) HP Recommended

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Cracked motherboard or bad solder connection. Return it if in warranty.

If out of warranty possibly a heat gun can be used to reflow the solder. Any shop can try that. There are some reports of using a hair dryer to repair PCB and graphics cards but a laptop is a major disassembly.

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CMOS 502 Invalid Checksum and Random restarts (10)
CMOS 502 Invalid Checksum and Random restarts (11)

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CMOS 502 Invalid Checksum and Random restarts (12)

Aryan461

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‎03-11-202511:12 PM

CMOS 502 Invalid Checksum and Random restarts (13) HP Recommended

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What do you mean by using a hair dyer?

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CMOS 502 Invalid Checksum and Random restarts (14)

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