Customer service on Teyes cc2 is BAD! They only respond via text through Whats App. Here are some TIPS For the Mercedes C- class that may help you since ive spent hours figuring this out. *If your steering controls don't work, its NOT a Canbus issue. Use a home WIFI. (it wont download 5g or on 4g cell networks. OPEN the APP "TEYES" in menu and download all 4 APKS and Install. open the next subject and select your vehicle and type. (Mercedes+ SMART) Save by clicking ALL at bottom corner. Download ALL Apps in this App and install Restart your car. It should work now! *FOR USA* Sim card size is a Micro SD. Only AT&T will support this radio via GSM. *You wont get car info like TPMS or Speed without the OBD reader sold separately. * the directions included instruct you to plug the backup camera in the wrong place it wont work there just keep playing with it until you get it working.
Customer service on Teyes cc2 is BAD! They only respond via text through Whats App. Here are some TIPS For the Mercedes C- class that may help you since ive spent hours figuring this out. *If your steering controls don't work, its NOT a Canbus issue. Use a home WIFI. (it wont download 5g or on 4g cell networks. OPEN the APP "TEYES" in menu and download all 4 APKS and Install. open the next subject and select your vehicle and type. (Mercedes+ SMART) Save by clicking ALL at bottom corner. Download ALL Apps in this App and install Restart your car. It should work now! *FOR USA* Sim card size is a Micro SD. Only AT&T will support this radio via GSM. *You wont get car info like TPMS or Speed without the OBD reader sold separately. * the directions included instruct you to plug the backup camera in the wrong place it wont work there just keep playing with it until you get it working.