Change your phone
How can you change the phone?
If you want to change your phone, first backup your SUNNYCLOCK data with your old phone if possible. If your phone is no longer working, hopefully you have already backed it up earlier. Insert your SIM card into the new phone and install SUNNYCLOCK on the phone. Run through the SUNNYCLOCK registration process to connect your phone number to the new device. If you have made a backup on your old phone, the app will call you to restore the backup as soon as you register on SUNNYCLOCK with the new phone.
NOTE: If you have a new phone and a new number, first change the phone number on the old phone.