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msi bios re-flash - mx25u256 no post after successful flash
#1
Hi!
I tried doing some research in the forum but cannot find a thread about this.
I have an MSI B450m pro-m2 max with an AMD 3400G CPU.
During a bios flashing process, the current went out. 
I tried to reflash the original bios from msi website (tried many versions, from the oldest one to the newest) using a ch341B programmer (I've chosen this because it said it was compatible with mxic (macronix) mx25u256 chip.
Since the pinout distance is not suitable for the clamp (it's for SOP-8 packages, mx25u256 is WSON-8) I decided to solder some small wires to the JSPI port on the motherboard and then manually connect them to the 1.8v adapter (connected in turn to the 25 slot on the ch341).
So, the wiring is correct, I quadruple-checked it, I used ASProgrammer, it supports the chip (I tried some other softwares and BEWARE, many guys on github share zip and rar folders that contain some malicious modded programmer software).
I successfully erased and flashed the bios multiple times... I mean, after doing the verification between what is written on the chip and what is inside my rom file it says it is the same. 
So, apparently everything was done correctly, but in the end, the light from ez-debug shows a bios error (light stays on).

I also tried every combination of CMOS battery, CPU and RAMs inserted in the sockets or not, but it does not post.

What can be wrong or missing in the procedure?
find
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