Fix SIM-related errors

1. Check if you reset the device to factory settings or applied changes to the current software.
   • If you have, update your device’s software or firmware settings.
     • To update your device:
       1. On your device, go to Settings.
       2. Tap About phone.
       3. Tap System update.
       4. Check for updates.
2. Update the Google Pay app to the latest version:
   1. On your mobile device, go to the Play Store or App Store.
   2. In the search bar, enter: Google Pay.
   3. Update to the latest version.
3. Make sure that the SIM card is active on your device when you add a form of payment.
4. Stay online through mobile data instead of Wi-Fi.