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bricked bios, black screen

HP Recommended
HP 280 G1 MT Business PC
Microsoft Windows 10 (64-bit)



I have an old HP 280 G1 MT Business PC and i tried to update the bios after an ssd upgrade. After bios upgrade pc restarted and never turn on again. I only get black screen and sometimes  get 8 beeps or even 2x8 beeps. I already tried removing battery/changing jumpers positions and even tried to use a ps/2 keyboard with an active usb adapter. In all situation nothing happened. I cant try the "windows+b/v" since none of the keyboards are recognized.


Is there any way to fix this problem?


Any help would be appreciated.


Thank you

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