Greetings.....i'm from Bangladesh & currenty using Deco M4R (Us) v2, firmware- 1.5.0.....i'm certain you guys are aware that only band 4 (channel 149-165) is allowed in Bangladesh for broadcasting 5ghz band.Deco is automatically using band 1 channels &  since i'm unable to change the channel manually, every device in my home cant rich 5ghz network. So is there any special firmware that i can use to change the broadcasting channel manually? Thanks