Sonim XP1520 BOLT SL - How to update your device software

Learn how to update to the latest firmware version for your Sonim XP1520 BOLT SL.

Upgrade to Firmware Version R 11.1.4-33.8-2-12.070-4201-14.0

Keep your device running efficiently by using the latest available software.

Before you update your rugged phone, you need to know your current software version.

  1. From the Home screen, select Menu.
  2. Select Settings.
  3. Select Firmware Details.
  4. Firmware version is displayed.

If you need to upgrade your firmware, follow the instructions below.

Manually installing the update

The software update is a built-in Java application, which helps to upgrade the phone to the latest version. NOTE: A micro SD Card must be installed prior to performing the software update.

  1. Backup all the user data such as downloads, pictures, music, video’s, calendar and contacts present in the phone.
  2. Select phone Main menu > Select Applications > Java > Software Update
  3. Select Software Update options > Launch, to launch the software update application
  4. Select OK
  5. Select Update to download the firmware.
  6. Once the tool is downloaded successfully, select Exit to close and exit the application.
  7. Select Continue in the Firmware Update screen, to view the firmware update instructions
  8. Select Exit to close the application.
  9. Power off the device.
  10. Long press Down navigation key (down direction key) and END key (Power ON/OFF key) simultaneously till the updates starts to install.
  11. After successful Firmware upgrade completion, the phone displays "Update done! Press ‘Power ON/OFF’ key to power ON"
  12. Press END (Power ON/OFF) key and Power ON the phone.
  13. Restore the factory settings (mandatory).

Your rugged phone is updated.

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