This step is to get into your boot loader, Lets do it guy!
1. Turn your phone off.
2. Press and hold the VOLUME DOWN then Press and hold the POWER button. After about 3 seconds the three colored screen should appear.
3. To exit Boot loader you need to remove your back cover and pull the battery out for a few seconds, then replace it and press the power button to reboot your phone.
Then..Dig all information you need...