Installing OpenWrt 21.02 on the TP-Link AD7200

[Alex Henrie]

Hello everyone,

OpenWrt 21.02 adds support for the TP-Link AD7200,[1][2] but in
practice I have not been able to install it. When I try uploading any
of the three images (uImage, factory, sysupgrade) through the web
interface, it just says "Firmware file error."

I also tried setting my computer's IP address to 192.168.0.66, making
the image available over TFTP with the name
AD7200_1.0_tp_recovery.bin, and booting up the router with the reset
button held down. I had Wireshark open and watched the file being
transferred, but when the transfer was complete, the router just
rebooted into its stock firmware again.

So, what is the correct procedure for installing OpenWrt on the AD7200?

-Alex

[1] https://git.openwrt.org/?p=openwrt%2Fopenwrt.git&a=search&h=HEAD&st=commit&s=ad7200
[2] https://downloads.openwrt.org/releases/21.02-SNAPSHOT/targets/ipq806x/generic/