Remove the SIM card and reboot without the SIM card inserted.  If the phone continues to reboot, please contact the Sonim Customer Experience Center at 1-833-MY-SONIM (1-833-697-6646).  We are open 24 hours a day, Monday-Friday.

If the phone does not reboot without the SIM card inserted, please re-insert your SIM card and power the device on.  The reboot should not occur, however if the rebooting continues, there is likely a network issue causing the reboot.  In this case, please contact the Sonim Customer Experience Center at 1-833-MY-SONIM (1-833-697-6646).  We are open 24 hours a day, Monday-Friday and we will further assist in troubleshooting.