First of all, I am not entirely sure if this problem pertains to the MIUI rom, I was just wondering if anyone else has seen this. I think the problem I am having has occurred with a different rom (UD) as well. Sometimes when I am going through an area with spotty coverage its like the antenna part of the phone stops responding. I usually don't notice until I try to make a call or check FB or something. It usually shows 3G coverage but with no bars, even when I move into an area that I know has coverage. I cannot make or receive calls or data when this happens. There have been a few times where I try to turn airplane mode on and back off to get it to search for service but, it won't go into airplane mode. When this happens the signal bars turn gray but the airplane doesn't pop up (indicating airplane mode) and it will not let you turn airplane mode off in the menu (the selection is grayed out). I always end up having to reboot the phone to get it to start working properly. Anyone else seen this problem? Thanks in advance for info.