1. Insert a 2G network nano SIM card that comes with data and restart the watch. Allow 1-2 mins for the watch to detect the data signal.
2. Once the main screen shows data signal and the letter "G" shown, you may proceed to bind the watch with myFirst Phone app.
Note, if the screen shows "Gx", it means the SIM card signal is not detected. Proceed to remove and reinsert the SIM again and retry.
Successful Bind on myFirst Fone D3s
Unsucessfull Bind of myFirst Fone D3s