It is always the same when I am using Autel MaxiIM IM608 + XP400 Key Programmer to make automatic detection for a Mercedes Benz key.
It says “Chip communication failed. Please check whether the chip is placed correctly or in good contact”
The solution from AUTELDIAG engineer：
Problem was solved, Autel IM608 scan tool and XP400 can detect Mercedes key successfully now!
Thanks to Auteldiag engineer!