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Microsoft Windows 10 (64-bit)

At work  some hp455g7 failed to boot after automatical upgrading to bios 01.17.00 RevA . The rest didn’t upgrade yet..

The power button led starts, the screen is black and after a 30 secs the fan is getting loud and then nothing. Even after 3 hours.

I’ve made a bootable usb with the previous version of the bios. I’ve inserted the usb. Pressed win+b and power and then replaced the power but nothing. The only leds that are one is the wifi and mute that closes after 5secs.

Any idea how to reprogram the bios?

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