You will be taken to the app pairing screen once you’ve submitted your OTP. Ensure your phone Bluetooth is on to allow it to pair it with the band. Make sure to click on the option to allow notifications After choosing your band the app will request a pin which will be displayed on the band as shown below.
If you have missed out on tapping 'Pair', you will need to go to Bluetooth Settings and Forget the Device. Then you will need to pair it again from the start. This time, do not miss on tapping on pair.
This screen will show details linked to the entered number for existing users and would be blank for new users. You can use it to fill/edit your details. Click on Save to proceed further.