@RoduanKD I think that was this blog post: https://forum.openwrt.org/t/tl-mr6400-v5-back-to-stock-firmware/87275/8 I had this problem on TL-MR150 and I followed the instructions like it was MR6500. I...

@RoduanKD I had the same problem caused by incorrect firmware update. I did like it was said in some blog to "strip" the .bin file like below. "dd if=original.bin of=tp_recovery.bin skip=1 bs=512...