Would any wizards help me unbrick a device

I have a GPD win which has a corrupt bios. I found a video documenting the process to reflash it but it’s beyond my comfort level, and I’m unsure whether we have an appropriate flashing device or voltage level shifter.

Thanks, Ben

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What kind of chip does it store the bios on? If it’s just a serial EEPROM it can be programmed with almost anything we have lying around (arduino, raspberry pi, bus pirate, etc.) and we probably have a number of members with experience programming them.

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