Sony xperia tipo dual starting problem

[tanvir37]

I have been using Sony xperia tipo dual for 1 year. Yesterday night I plug in the charger cable to the phone and forgot to unplug when full charged. So the phn was in charge whole night. In the morning I saw that my phn switched off. Then I on the power button. the phn turned on with a vibration as usual and appears SONY in the screen, a few second later XPERIA appeared and remained, could not enter to the operating system. I could not able to switch off my phone pressing the power button. So i remove the battery and place it again and then start pressing the power button. But the same case happens every time. My computer also cannot able to recognize ny phone. 

Please help me solve this problem.

[_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 60% 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).