Open the app or website where you want to sign in
Enter your phone number
Choose the option to receive an OTP by SMS or call
Wait for the OTP message on your phone
Check your SMS inbox or call log
Enter the OTP code in the required field
Tap or click Verify or Submit
If you do not receive the code, request a new OTP
Make sure your phone has signal and can receive messages
Check that the phone number entered is correct