In most cases, call issues are due to the network coverage in the location you are in.

Note: Before proceeding to the troubleshooting steps, be sure that the Razer Phone is up to date. Navigate to Settings > System > Advanced > System update > Check for update.

To fix this issue, follow the steps below:

  1. Check the network coverage on the Razer Phone.

    Note: Network signal is affected by walls, buildings, trees, and weather conditions.

  2. Make sure that “LTE (recommended)” is selected. Navigate to Settings > Network & internet > Mobile network, expand “Advanced” and select “Preferred network type”.

    Note: If you are in a poor 4G coverage area, you can force your phone to use lower frequencies like 2G and 3G. This may or may not improve performance depending on the network coverage.

  3. If you are still experiencing the issue, there might be a problem with your SIM card and may have to contact your network provider to request a replacement.
  4. If the issue persists, back up the data and perform a factory reset.