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- Notebook Boot and Lockup
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06-28-2024 01:15 AM
Product: HP Notebook - 15-da0296tu
I have recently got this issue in my laptop. My Laptop just shut down automatically and when booting it up, it won't turn on till I connect it to power supply (However battery is charged 50%+).
Then my system takes much time than usual and boot up to a screen where it is written "CMOS Checksum is invalid" Eroor 502.
I have opened it to replace the CMOS battery but end up finding nothing.
I am not in favour of Updating BIOS, because any error will lead me to a Bricked Motherboard.
Solved! Go to Solution.
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