Fix SIM-related errors

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.
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.
Make sure that the SIM card is active on your device when you add a form of payment.
Stay online through mobile data instead of Wi-Fi.

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