TP-Link Archer C20 V4 how do I go back to stock firmware?

Hi!

I bought the TP-Link Archer C20 V4, Installed openwrt and tried it out. It is unfortunately not working out for me. The primary issues being,

  1. No support for 5GHz wifi
  2. I have been trying to figure out a way to set it up as a 2.4 Ghz range extender and it's extremely confusing how all of it works.

So, Now I would like to go back to stock firmware. From what I have read so far, I can't simply flash stock firmware over tftp. I need a stripped firmware. I have tried to find a stripped firmware of archer c20 v4 and have came up empty.

So, How do I go back to original firmware?

If you are not able to create a stripped OEM firmware yourself, take a look here:

Thank you soo much!

I use the tp_recovery.bin from that link and that worked just fine for me.

sidenote:

I downloaded the stock firmware and ran binwalk on it. It had 3 files on it. 1. U-Boot image 2. LZMA compressed data 3. Squashfs filesystem

Then, I checked the tp_recovery.bin and it's structure is exactly the same which makes me wonder if I could've used the stock image from official source as tp_recovery.bin.

I also checked the openwrt_sysupgrade.bin but that one has uboot section stripped out of it. I guess, This could've been done by figuring out offsets and stripping it with dd.

Anyway, Thank you so much! I never could've figured out all of that on my own without having access to stripped images in hand.

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