When I woke this morning my phone was off, but the battery still has a charge. When I plug it in the power socket, it shows the large battery icon and the change level.
But it wont turn on. The screen flashes once when trying to boot, then the phone is off again. When trying to use the boot menu (power & volume), I get to choose between normal, fast & safe boot, but all have the same result, a flash and then it's off again.
I have not enabled developer mode. 3 weeks ago my disk was almost full, so I deleted the contents of the cache directory, but after that the phone was booting fine.
What can I do? Help I am phone-less.