TPLink Archer AX80 EU again

Installing and Using OpenWrt
1

Hi,
I'm refreshing the topic of installation OpenWrt on TPLink Archer AX80 EU
following the post:

It appears at the moment that the only supported installation option is to use UART interface.

But I've found this post on github:

That someone describes installation process without access UART interface:

Download this initramfs FW. https://github.com/Demiurge67/Rooter2021/releases/download/AX80(RU)_support/OEM-upgrade.bin
Log in to the router and go to Advanced->System->Firmware Upgrade.
Select !OEM-upgrade.bin from the extracted archive and click on update.
After a while, the router will boot into the Openwrt initramfs with the default address of 192.168.1.1.
Connect to the router with your favorite terminal via ssh.(port 22, login root, password empty) and type:
fw_printenv | grep tp_boot_idx
if
tp_boot_idx=0
go to the step 6. otherwise, type:
fw_setenv tp_boot_idx 0
Now we're sewing Archer-ax80-v1-squashfs-sysupgrade.bin (or sysugrade FW with different name) either from the terminal using sysupgrade -n, or through the Luci web interface without saving the settings.
After rebooting, you'll get OpenWrt.

My question is if someone try this method with success ?
I've tried this without success, every time upgrade process return error "Upload error"

2

You may want to check out the latest development in below discussion:

3

I saw it, but unfortunately latest snapshot doesn't work
There are 2 workflows waiting for approval, so I'll try tomorrow

4

Just flash US version, but mind you Wi-Fi needs some small work. I will try this on my device next time.

5

Today I've try upgrade with latest kernel snapshot r31660-32c46b569f.
Still the same upload error.

PS.
My Archer AX80 is EU version (without external antennas).
Firmware version 1.3.2 Build 20250812 rel.70103(4555)

I would like to not open up the router to have access to its uart pins due to lost of warranty and find out a path to upgrade it to OpenWrt without uart.

6

That’s not gonna work, at this moment uart is the only way to go.

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