If you are experiencing a reminder and notification to register your warranty every ten minutes or so, please use these steps to stop this from happening:

1. Tap your top-middle Apps button
2. Open Settings
3. Open Apps & Notifications
4. Open list of All Apps/App Info
5. Press the menu key (top-left) & choose Show System
6. Open any line that says “Sonim Warranty Registration” and choose Force Stop