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‎04-12-2022 04:43 AM

HP Recommended
Product: 21W93PA
Operating System: Microsoft Windows 11

hlo, 

I  use Hp gr007au laptop after using about 10 months I am facing a problem that when ever I restart or turn off my laptop it is stuck with black screen . After pressing power button hdd light blinks once and power light constantly glowing with fan running very fast . When I boot my laptop pressing win + v I am able to successfully boot my OS (with error CMOS checksum 502 )  and even after reseting the bio by holding win + B ( with showing bios recovery 500) I am successfully able to boot OS but issue isn't fixed permanently after each shut down and restart I face same black screen problem . my laptop does not have cmos battery also .

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