I tried to flash an older Version of the official tp-link vendor, the v5.0.3 as provided. First of all I couldn't find it and second of all I cannot downgrade with the official images... I receive the same error.
** I also tried to change the name of the .bin file from OpenWRT, but with no success. Also all the files have more than the allowed characters of the image name.
I would appreciated if some1 could help me to solve this kind of issue. Thanks in advance!
Not sure if this helps...
Double check that you use the factory bin.
I always had to rename the file as the name was too long - maybe you give that a try?
You could also try an older version of openWRT.
I started with one of the 19.xx.xx (a couple of years ago)
there is no older version for this specific model as 23.05.rc1. I am using only the factory.bin because its the first install and I need ofc in advance to rename the file otherwise it will not be accepted, but nothing worked. I think the problem is with tp-links official image, I cannot also downgrade to an official Version of them...
I cannot find a specific compat_level that he actually wrote down... but I modified the 3 bytes about the firmware version that are needed... I will wait for a response and then I will upload the modified .bin file