[Simple]

It still does not make sense, because it indicates that files with different personal data would have different serial numbers.. But what we have here is files with 2 different personal data but the same serials!!

I was asking the question to clarify if changing the serial can damage the firmware. May be someone can try changing the serial and re-flash it, if it does not work, re-flash the working one back, and if it works, then you know what to do if it gets blocked by PSA..

p.s. Of course I wouldn't have thought changing the serial would damage the file since different files have different serials, but when you HEX edit the files you will notice a couple of bytes in the middle of the file that I could not establish if they are related to the number.