I've been trying to find a method of clearing system cache on this tablet. I tried the following instruction online. When it gets to the point of actually cleaning the cache, I get an error and it reboots. Any ideas? 1. Turn off the device. 2. Hold the Volume Up and Power Keys together. 3. Release the keys when the MANUAL MODE screen appears. 4. Wait 2-3 minutes. 5. Press the Volume Down key to scroll to delete all cache data. 6. Press the Power key to select. 7. Wait for a few seconds ad the device clears information. 8. Press the Power key to select reboot system now. 9. Wait as the device restarts.