If iGPSPORT APP Bluetooth can't connect with your iGS10S,
Pls follow the steps to unpair the Bluetooth and try again.
1. Long press the right button to enter E1 mode.
2. Then, short press left button, the device will restart itself, which indicated that the Bluetooth is unpaired.
If it still can't be solved, pls contact us with some screenshots or a short video for troubleshooting.