BMW E93 CVM module soft top software

[CobK1ll3r]

Hello Community,

I own an E93 M3 from 2008.
Unfortunately, a vehicle update was carried out due to a defective control unit.

Unfortunately, this also included the CVM control unit.

After subsequent coding, the soft top can no longer be closed by radio key.

I have read that the CVM could be taught this function again via downgrade (ZUSB).

Have any of you ever tried this or have any ideas?

Thanks for tips