The system crashes or freezes ever so often and I have to reboot or restart it?
The reason to cause this maybe:
1. There are too many applications in the internal memory. Please remove the applications to the SD card.
2. The tablet runs too many applications running on the background. Please clear the background applications when you don't use it.
3. The firmware version of the tablet is too old. Please flash the new firmware.
4. Please keep the tablet cool or at least not too hot while you are using it. If it is hot, please leave it alone for several minutes.