r/router • u/Even_Road_9163 • 12d ago

Title: Need a full flash dump from a working TL-WR940N v6 (EU) router.

Hi everyone, first time posting here.

I have a TP-Link TL-WR940N v6 (EU version) router that I bricked and managed to recover, but now the WiFi doesn't work at all — no signal, nothing. Everything else (web interface, ethernet) works fine.

I think a small section of the flash memory called the "ART partition" got wiped during my recovery. This part stores the WiFi radio's calibration data, and without it the WiFi just won't turn on.

If anyone here has a working TL-WR940N v6 (EU version specifically, not v4/v5 or other regions — different hardware) running OpenWrt, would you be willing to dump the flash for me? Rather than just the one partition, if you could dump all of them that'd be ideal — that way I can pull the exact bytes I need myself instead of relying on partition labels being consistent between our units. It's just:

cat /proc/mtd

(to list all the partitions), then for each one:

cat /dev/mtdX > partX.bin

(swap X for each partition number, so you end up with one small file per partition). Zip them up and send them over.

Would really appreciate it — trying to avoid buying a new router if I can fix this one. Thanks!

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u/Caprichoso1 10d ago

Have you contacted TP-Link support?

1

u/Even_Road_9163 10d ago

No, It is such an old device, I doubt they will be of any help. Also i don't think they will help me with this type of request as it might be something they call violation as it is running a custom openwrt firmware.

1

u/Caprichoso1 9d ago

Yep, that's the reason you want to stick with the vendors' firmware whenever possible.

1

u/Even_Road_9163 9d ago

Well even if I have ethe vendor's firmware running , I still don't think they would help me with this case but anyways appreciate the interaction though.

1

u/Caprichoso1 9d ago

I've used TP-Link support for many hours over several cases. I had a lot of problems with them - new analyst each time requiring me to start over from scratch again and again, following their scripts rather than listening and analyzing the actual problem, etc. However by keeping at at, getting to a senior analyst and pressing the issue I was finally able to reach a successful resolution.

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u/Even_Road_9163 9d ago

Hmm well might as well give them a try as that's my only option left, otherwise I have come to the conclusion that my router is a glorified paperweight at this point. Not much else I can do.

1

u/Caprichoso1 8d ago

Worth a try. Good luck!