2010 bmw 535i Firmaware failed when try copy ISN. · Microtronik Autohex II and Hexprog forum

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pocholo1968
69.4% (Friendly)
Member Topic Starter

2021-09-14T14:21:33Z

Hello everybody.
I try copy ISN from MSD81 to the CAS and when i did firmware,this failed andnow ignition off.
What i need to do please?
Thank you

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PDXAutoworks
100% (Exalted)
Advanced Member

2021-09-14T14:58:40Z

Did you make backup of CAS eeprom & flash? If so, write them back and CAS will be back to original state.

If not, read CAS eeprom and flash and post both files & cas part number, maybe someone can fix.

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Autohex_II_BMW
100% (Exalted)
Advanced Member

2021-09-15T05:33:35Z

Originally Posted by: pocholo1968

Hello everybody.
I try copy ISN from MSD81 to the CAS and when i did firmware,this failed andnow ignition off.
What i need to do please?
Thank you

hello
You can try to do cas firmware multiple times, if error keep on coming then try to do indiv programming. If you get error on indiv programming also then that means your CAS is in programming mode. You can just read eeprom from CAS and check if its in programming mode or normal mode. If in programming change to normal mode then save and write eeprom back. Read again to confirm the changes.
Also you can write the attached flash to cas then do cas firmware in autohex it will work.
programmign mode cas.png You have insufficient rights to see the content. 938XX115.rar You have insufficient rights to see the content.