Hi and thanks for the possibility, to fix a bios.
I got a t580 on my desk and after a lot of reading - sadly at first not about the ch341a and his 5 volt issue, instead i was able to read the bios and 3 dumps of the original file.
I used the software ch341a programmer. I used the software and the autopatcher within windos10 and the patch was succesful but not the writing back to the soic. Later i found out (thanks to your documentation), that the voltage at the data pins is to big and unstable. So i bought the raspberry pico RP2-B2 and pulled the source from pico-serprog, compiled...

Hello folks,

i am mick from germany and i am interested in expanding my knowledge in electronics....