OpenWRT, MR3420 and nailed WiFi?

Question

WiFi

Hello!
In general, the essence of the issue is this. Recently, a TP-Link MR3420 v.1 router came to me. Bought with hands, as they say. Everything would be fine if I didn't notice one annoying thing - WiFi doesn't work.
There is simply no interface. I thought that they messed up with the firmware (all the more I saw the absence of the /etc/config/wireless file). Let me flash it (once I even had to use MTD).
So the results:
- the wifi LED on the face never lights up, on all firmware (even when rebooting, it does not light up);
- OpenWRT (multiple versions) no interface. Just does not see the radio module.
- Gargoyle cannot start wifi.
- Stock allegedly sees something, and it seems to her that something turns on. At the same time, it selects the zero channel (if auto is selected), and naturally no indicators light up and wifi does not work.
Of course, I can return the router, but I would like to try to revive the wifi. Maybe someone has some ideas? Thanks in advance for your time.

Answer 1

Perhaps the art-area in the flash memory of the router is overwritten. It stores wifi settings.
On the openwrt forums, I came across universal images of the art area for certain models, not the fact that for yours.

Answer 2

DD-WRT behaves similarly to OpenWRT

Answer 3

Marriage?

Answer 4

Necropost, but suddenly someone will come in handy. Most likely nailed ART. In my case, too, after the restoration of the dead, the Wi-Fi did not work. Filled someone's full flash from the Internet from the same hardware version and Wi-Fi came to life. I was not too lazy and drove my poppy (instead of someone else's from a full flash) from the router case.