How to flash zImage-rescue partition to DM900UHD/DM920UHD
1. Copy this .bin to /tmp 2. Open telnet and login (via the IP address) (if you have no IP, then you must use the other way via Putty Serial) 3. flash-rescue /tmp/*.bin 4. Wait 3-5 minutes. Wait for DONE info! 5. Power OFF to 10 sec and power ON. 6. Done. You have new rescue loader.