How to tell if CAS4+ ?

[u.s]

I know some will say it's a silly question but I've not done a CAS4 or CAS4+ module yet.

Is there any visual indication that the CAS is a 4 or 4+ variant?

And CAS4 has unencrypted ISN in dump, whereas CAS4+ has encrypted ISN and needs working key or ISN from ECU.

Many thanks in advance.

[Bryanlocksmith]

If its updated at BMW company it CAS4+ FOR SURE.
Can u take any pic of ECU?

[ray-ray]

Ews1,2,3 with 2byte isn#
Ews3 System Cas1,2,3, isn# 2byte
EWS4 is Cas3 2007 dme isn# 16byte

Only Cas3+ and Cas3++ 4+encrypted

Cas1,2,3,4 are decrypted

Fem/BDC

[u.s]

Thanks, if I have a CAS 4 module in front of me how can tell if it's CAS4 or CAS4+?
Anything on the sticker or part number?

[ray-ray]

And the answer is >
If the processor on the board is a 1L15Y it will ALWAYS be a Cas4....
Cas4 can also have a XEP100 chip
Cas4+ you will have a 5M48H Processor or 1N35H