[93mustang]

hey im tired of the signal situation with my phone and wanna know if it can possibly be the radio or do i need to return the phone? i have none of the other issues with my phone like i have been reading about and this started happening after the ota update. could that be the problem or would it be more less the antenna. i went to an area where i always had full signal with my hero and i will have full signal and then it will just drop all the way down. doing that back and forth. then sometimes it wont even get full signal. any ideas? would rooting help or that has nothing to do with it?