PLEASE HELP EXTRACT ISN FROM BMW CAS4 DUMP

[venceslau]

Hi all, can someone please help with extracting DME ISN from this CAS4 (F25) dump?

EDIT:
I used bmw-explorer-clone cas4 calc to load dump and it shows me the 128bit ISN but I'm looking for the DME ISN.
I am replacing MEVD172 for N55 and want to get DME ISN from CAS to write in DME.

128bit ISN
B8 31 10 BC A5 72 52 C9 E7 5D E0 4E D5 4A 13 AB


DME ISN
??


Thanks in advance

[Lambda1]

Which tools you got to read ecu?And why would you read CAS ISN and write to DME? Common way is ECU ISN to CAS.

[pepi]

Hi all, can someone please help with extracting DME ISN from this CAS4 (F25) dump?

EDIT:
I used bmw-explorer-clone cas4 calc to load dump and it shows me the 128bit ISN but I'm looking for the DME ISN.
I am replacing MEVD172 for N55 and want to get DME ISN from CAS to write in DME.

128bit ISN
B8 31 10 BC A5 72 52 C9 E7 5D E0 4E D5 4A 13 AB


DME ISN
??


Thanks in advance

The ISN is same as you writed B8 31 10 BC A5 72 52 C9 E7 5D E0 4E D5 4A 13 AB

[venceslau]

Which tools you got to read ecu?And why would you read CAS ISN and write to DME? Common way is ECU ISN to CAS.I have ACDP mini but don't have the N55 decryption board so would have to open the shell to read/write ISN. I can easily read the CAS4 dump however so I can get ISN.

I don't want to open shell and will bring the DME to someone with Autohex instead that will write the ISN to DME on bench and job done.

I understand that normally you read ISN from DME and write to CAS but I'm not sure if my tool will be able to modify CAS ISN correctly so I prefer to write ISN to DME as I have done it this way before and it worked well.

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[venceslau]

The ISN is same as you writed B8 31 10 BC A5 72 52 C9 E7 5D E0 4E D5 4A 13 ABThanks mate, wasn't sure if there was another ISN or not. So if I write this isn to dme all should be good right? Cheers

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