http://www.topfield.co.kr/data/product/77002%5B1%5D.jpg
- first save your channel list (use Top Set v2.0)
- upgrade with PVR software (check system ID first)
- reset to factory defaults
- upload channel list
+ manual (for old and new remote control) and channel list
For backup system:
MENU - Installation - System Recovery - Store - 2606