This worked out good for me. All i had to do is take out my battery for 3 minutes and then press the volume up ; call button ; and power button! then click ; Select wipe data / factory to reset & then click reboot phone now.
The only bad thing about it was that i lost all my contacts , and messages , and calls .
But i'm glad that i have my phone working again . i missed it the 30 minutes i didnt know what to do.