There are two ways to flash a new firmware image onto the DM525 — from a web browser, or via telnet / PuTTY. Both put the receiver into rescue mode first.
Method 1 — Browser
- Download and extract your image of choice.
- Power the receiver off using the rocker switch on the rear panel.
- Power the receiver on and, within half a second, press and hold the power button on the front panel. The button blinks through a colour sequence — blue, purple, then red, then a constant blinking blue. Release it when it starts blinking blue; the receiver is now in rescue mode.
- Type the IP address of the DM525 into your browser and press Enter.

- Click the Firmware upload button.

- Click Browse, find your downloaded / extracted image, double-click it, then press Go!

- When you see "Finished successfully. You may reboot now", click Click here to reboot.


Method 2 — Telnet / PuTTY
- Copy and paste each line below into telnet / PuTTY, pressing Enter after each:
Code
echo "rescue" >> /proc/stb/fp/boot_mode reboot
- Then follow the Browser method above from step 4 (typing the receiver's IP address into your browser).
📄 Full guide: Download (PDF) · Reference
