Cas3 ++ Istap dead after downgrade

[hananmori12]

Hi,

My tech works on 2013 BMW X5 with IM508, he downgrade cas with 13-14v and was failed,
no ignition no light all dead, I read eeprom and flash,

can someone help?

CAS part number 61.35-9287534-01

[CarCity]

Hi,

My tech works on 2013 BMW X5 with IM508, he downgrade cas with 13-14v and was failed,
no ignition no light all dead, I read eeprom and flash,

can someone help?

CAS part number 61.35-9287534-01

Here you go :

[hananmori12]

Thank you,
just to write both files?
old key will work?

[john chan]

Thank you,
just to write both files?
old key will work?

Please try this one and report.