Benz SD Connect unlock service（ benz unbolck chip)-s/n chip

You may make your SD Connect locked with following signal:
1. have you got "!" in the lilttle screen of sd connect, and shows " device not in use"?
2. have you got a messenge on the screen s estting an update? and updating, your sd connect becomes a brick?

Yes, your c4 sdconnect multiplexer blocked with blacklist, as the serial number is overdue, so your sd connect is blacklisted by hardware lock.

What you need is a unlock service.

we will offer a serial number chip for you to unlock your C4. Differ from sending back your C4, it is quicker and easy, as well as economic.

After get the chip, just change it as our engineers show( by video or file), then your C4 will go to normal.

We offer wholesale price for big order.