Most of my devices do not support the Wi-Fi bands 36,40,44,48 that the default setting provides. My country(Bangladesh) does not have any channel restrictions that could legally hamper the region chan

I was trying to update my deco m4r with the 1.4.3 firmware from the tplink US site. It succeeds in uploading but then it fails almost immediately. Although my kit was bought from Bangladesh, it says "