Re: Surface 4 Pro BIOS locked

Hi Peste,

Thank you for your reply.
the first file elicited an error after 37 secs of writing - Verification error on address: 0x00600064, Device: 0xAA, Buffer: 0xFF

But the second one was written to the chip just fine. Will be able to test it when my new display cable arrives.
I appreciate your time.

Re: Surface 4 Pro BIOS locked

Hello team, I thank you in advance. I've learnt a lot from reading through these pages. Gave me the courage to open my locked SP4 (only broke the display cable d'oh). I've removed the BIOS chip, read the data. I see on line 00606620 the following data.
00 FF 07 00 F9 07 00 00 00 FF FF FF AA 55 3F 00
From an earlier 'clue' is it the AA entry to change? If so, to what please?
In case I'm way off base, I've also attached the BIOS in question, for your review.
Again thank you for, if nothing else, giving my the gumption to even...