A1708 820-00840 no PPBUS, no short

Narek

Member
Funny thing is, that first I have flashed bios as it was, without any modification. I've connected only display and as it booted fine I decided to change S/N before going on with assembling and further testing. I haven't tested keyboard then. Anyway, I managed to figure it out.

Keep in mind, when change SSN in BIOS, you MUST fix checksum of Fsys area, to avoid such kind of problem you've got.

It can be a noob question, but can you please explain me how to correct checksum? I guess there is an editor, which recalculates new values to be the same with original one?
 
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