T3 phone won't stop vibrating

[Waltermq]

Hello, at around 4am this morning my T3 started to vibrate and I could not turn it off for the life of me.  When I changed the screen black out to 15 seconds the screen turned off and now will not turn on. I have tried the various combinations of power button plus volume buttons to no avail.  It has now been vibrating for 3 1/2 hours and was at 25% when this all started.

Any Ideas?

[_alexdon_]

You may need to perform a software repair using PC Companion.The process will erase all internal memory.You might need to charge your device for about 1-2 hours before so the device has at least 80% battery.

Make sure the device is not connected to computer or laptop and turned off (sometimes you have to press power button and volume up until the device vibrates 3 times or on some devices you have to press the small button near the SIM tray or on the back of the device).

Open PC companion->support zone->phone/tablet software update->repair my phone/tablet blue highlighted.Follow the steps given,do not connect your phone until prompted to press volume down while plugging USB cable. If PC companion does not start the repair process, you might need to run it in compatibility mode with Windows 7 (in some cases XP).

[Waltermq]

My phone finally died, when I connected it to my computer in an attempt to back up, it immediately starts to vibrate but will not connect to PCC.

[_alexdon_]

But isn't the force shutdown option working?

[yankeeee]

try to charge with Force shutdown if it vibrates 

Power button and volume up 

and try to remove the screen protector

[Uliwooly]

Connect your phone to a wall charger, press and hold power and volume up for 10 seconds, let it charge for two to three hours, then repair it with PCC