[Chriz]

Seems to be normal that you don’t need to write back eeprom. Friend with autohex confirmed that.
But I have the same issue car starts but locking/unlocking does not work. Though it was Problem from China key, but seems to be ACDP problem.

Reading ISN from MSD85 works fine without opening ecu, but write isn you need tricore pass and opening ecu. But with no tool that reads password this function is useless, hope they add a function to get password over ACDP.

When I can’t write isn to dme I will try to renew cas and write isn from dme in cas, hope that will work i will Test these days and Report