This issue could be caused by an outdated Android OS or a poor network coverage. Follow the troubleshooting steps below to fix this issue.

Before doing anything else, ensure that your device is up-to-date by performing a software update.

The instructions below apply to the Razer Phone with the Android Pie installed.

  1. From your home screen, swipe down twice to display quick settings.
  2. Ensure that the "Airplane mode" and "Do not disturb" are not enabled.
  3. If they are enabled, tap the icon(s) to disable.

  4. Go to Settings > Network & internet > Mobile network.

  5. Tap "Advanced" to display more options, then tap "Preferred network type".

  6. Ensure that the preferred network type is "LTE/3G/2G (auto)" by selecting the "LTE (recommended)" option.

  7. If all the settings are correct and you are still experiencing the issue, perform a hard reset.
  8. If performing hard reset does not help, contact your network provider to verify that everything is okay on their end and attempt to use another SIM card.
  9. If the issue persists, back up your phone data and perform a factory reset.