TL-MR6400 v5 back to stock firmware

[frollic]

try 257 bytes.

MR6400 V4 Bricked

@walminahe #MR6400 v4 tp link sim router. walminahe this happened to me too. but luckily after searching i stumbled upon how to fix it. the whole process must be followed right from the start. like step 1) make sure u plug internet cable in mr 6400 wan port .2 installing open wrt with the recovery.bin image.. via flashin those steps u must b knowing....tftp with 192.168.1.255......3. opkg update 3 after update dont install luci yet. 4) use sysupgrade with linking it to the upgrade file url http:…