A, BMW x3 key synchronization method is as follows
1. Bind mobile phone through BMW Cloud Connectivity APP;
2. When the mobile phone is bound to the vehicle, turn on NFC on the mobile phone;
3. Set the default payment option in Huawei mobile wallet to [BMW Cloud Connection];
4, want to open the door, put the phone near the door handle is OK;
5, to START the vehicle, put the mobile phone on the wireless charging platform in the center console, step on the brake and press the [START\/STOP] button.