Did your android device often force close or hang? After Reboot stop at SDcard checking? Those trouble sometime comes from SDcard problem.
The Solution to fix SDcard error
- Turn Off the android device
- Remove SDcard from device
- Using card reader, connect SDcard to PC
- Wait until Windows regconize the SDcard
- At SDcard icon, right click > properties > tools</li>
- Select Error Correction
- Let the windows repair the error
- After the process is done, remove the SDcard and put it back to Android device
- Turn on the device
It`s should be ok now. This solution has been test using windows 7.