Procedures: how to do the rescue
1. Put the rescue mode file into USB drive (unzip file).
2. Insert USB drive to DVR.
3. Press ‘power’ button at the front part of DVR continuously.
4. While pressing, turn on the DVR.
5. It will lead you the rescue mode.
6. Do not turn off the DVR during the rescue mode.
7. It will take about 15~20 min to finish.
8. Reboot the DVR.