Software udpate

To do a manual update:
1. Copy the update file (the .img file in this zip file) to a TF card or USB device root directory.
2. Goto Settings and choose Software update.
3. Select local update.
4. Select the update file from the list and press OK button to start update the system.

* If the update file didn't show in the list, press menu button 8 times to reflesh the list.