You’ll need to perform a hard button reset on your device. On the XP8 you’ll need to have your Gmail account password handy to get logged back in. On XP3/XP5s you’ll only need to set the device back up. To perform a hard button reset: 1 – Turn off the device. 2 – Press and hold the volume up key. While holding the volume up key press and hold the power key until the phone vibrates. Once it vibrates, let go of power but continue to hold the volume up key until you see the screen come on. Release the volume button. 3 – Press and hold the power button and then tap the volume up key. This will take you into the boot loader. 4 – Use the volume down key to get down to Wipe data/Factory reset. 5 – Press the power button to select Wipe data. 6 – Use the volume down button to highlight yes and press power to select it. 7 – When the cycle finishes, the boot loader will come back up. Click on Reboot device.

If you need any further assistance with this question, please contact the Sonim Customer Experience Center at 1-833-MY-SONIM (1-833-697-6646) or email us at [email protected]  We are open 24 hours a day, Monday-Friday and we will further assist in troubleshooting.