Hard resetting / factory resetting your phone will solve the following issues:
1. If you forgot your pattern lock
2. If you forgot your gmail account
3. If you forgot your password
4. Apps that automatically force closing
5. Stuck in Cherry Mobile Logo (sometimes does not work if the firmware is totally damage)
NOTE: Performing hard reset will erase your data.
To hard reset:
1. Turn off your tablet.
2. Press first the POWER Button wait until the tablet vibrates and then immediately Press and HOLD VOLUME UP until you see the Android Robot.
3. Select English or Chinese if you can understand chinese :)
4. Select wipe / factory reset, press Volume rocker to navigate and press the power button to confirm your selection
5. Reboot your tablet.
If performing hard reset did not succeed, you need to wipe the cache first in the android system recovery before performing wipe / factory reset.
I hope this tutorial helps you.. If you have any question just drop a comment.