Sony Xperia M2 won't power up, stuck on purple turning on screen.

[circus_lj]

I turned my phone off yesterday as the sound wasn't working very well (seperate issue). When I tried to turn it on again it comes up with the Sony logo like normal and then goes onto the purple screen that it does before the phone is fully started up and then just stays on it. I've tried a number of things - pressing the reset button

doing a simulated battery pull

letting the battery run down

plugging it into my laptop

None of the above have worked. When I've plugged my phone into my laptop it starts charging but doesn't get found by PC Companion.

Please help!

[Qatrium]

I'd suggest that you do a PC Companion phone repair, this will do a clean installation of the latest firmware and will also wipe your internal memory, so you'll lose any data stored on the internal memory. You need your phone to be shut down and charged, so power it off and put on charger for 2 hours before beginning.

Open PC companion -> Support zone -> Phone/tablet software update -> Repair my phone/tablet (blue link style). Follow the steps given, do not connect your phone until prompted to press volume down while plugging USB cable.