in the start. poor gps. great fm radio. now. decent gps. poor fm radio

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my phone is stock. never altered. nothing cooked or unlocked.
in the begining i had poor laggy gps. and that was the only down side to the phone... for me anyway lol.
now the gps is considerably better 10 satalites and spot on.. not 50 feet to the north. however my fm radio used to work perfect. now it only picks up parts of one station. and the quality of the ear speaker is garbage. not sure if the changes happened all at once or one at a time. i have never altered the built in radio all stock attt fuze rom and software.radio cab and thats it. recently hard reset to see if it would help... nope. i cant understand people. the ear speaker quality is so bad that i have to use speaker phone to talk sometimes.
any suggestions. thanks guys.