I purchased a used Netgear R7800 on which the previous owner had installed DD-WRT (Firmware: DD-WRT v3.0-r34015M kongat (12/09/17)). The device is working as expected and the router is accessible via 192.168.1.1.
My objective is to replace DD-WRT by OpenWRT but so far have not been able to flash OpenWRT using TFTP recovery. To do so, I've primarily been trying out the instructions described in Netgear R7800 exploration (IPQ8065, QCA9984)
- Downloaded R7800-master-r6550-83e1fce17a-20180326-2140-sqfs-factory.img - the master build from @hnyman at Build for Netgear R7800
- PC (Windows 7): set network adapter to 192.168.1.10 (255.255.255.0)
- Turn off the router
- Network cable plugged into LAN1
- Open cmd.exe
- While keeping the RESET button pressed, power up the router
- Wait till the POWER LED starts flashing ORANGE
- Run TFTP command (Cygwin): tftp -m binary 192.168.1.1 -c put R7800-master-r6550-83e1fce17a-20180326-2140-sqfs-factory.img
- Release the RESET button
After a short while, the TFTP command comes back with "Transfer timed out." and the router has booted normally. Obviously have tried out a few variations on these instructions but no luck thus far.
Has anyone ever done this before, or any suggestions on how I could get DD-WRT replaced by OpenWRT?