Hello All,

I am trying to clone an ECU with an immobilizer.  The ECU is bosch 0261204841 - ME7.3 H4.
I seem to correctly read the EEPROM, but when writing the code is different.

I am using Argub's tool with command line-
--bootmode 95040 --CSpin P4.7 -r -p 1 -b 10400 "filename"
--bootmode 95040 --CSpin P4.7 -w -p 1 -b 10400 "filename"

After writing I reread the EEPROM to verify and it is different. (see attached)
I have done this 5 times and the results are identical everytime so I am sure its not noise or connection issues - on a bench, 13.8V.
Can anyone point me in the right direction for reading & writing to this EEPROM?

Thanks