My phone has started switching itself off so that I have to input my PIN number to re-start it when I attempt to use it. Any simply/obvious reason for this behaviour?
@RayT1 Hi, put the phone in Safe mode for a few hours and see if the problem persists, if so, find a way to apply Wipe cache partition from Recovery, with great caution.
These reboots could indicate a more serious problem / Battery, motherboard ../, but for now with these steps we will try to diagnose. Greetings.