That's an interesting theory. There was a previous theory discussed that the phone isn't able to handle lower frequency bands very well, but it could be that lower frequency bands somehow kick off more band switching. Be nice if there was software that could show you what bands are available to your phone at the moment and allow you to select one (regardless of signal strength) and lock it in as the one for your phone to use. I think that would create better control for testing. I know that my phone, which works, stays locked onto the same high frequency band even though others are availabl