How to upgrade the firmware:
1. Copy the file "bank30.rom" to the root directory of a USB key. No change the file name.
2. Power on the K130/K230 and connect it with TV.
3. Plug the USB key to the K130/K230.
4. You will see an update message shown on the left upper corner on the TV screen.
It means the K230 is being upgraded. Make sure no power off during upgrading, or there would be unexpected problem.
5. After finishing upgrading, the blue indicator on the front cover will turn red. 
6. Then reboot the K230. The upgrading is finished.

