myq garage door opener wont connect on 2.4ghz band

Please, just take your T-Mobile box and plug it in to the same electrical circuit of the device you are trying to connect and go through the connections steps,  remember T-Mobile boxes like to be in a window or if you are connecting a garage door open be sure the door is open while you are connecting. I have never read so many complicated suggestions in my life.  I figured this out and I am 75 years old!