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I recently updated my firmware 4.0 to my IPhone. Since doing this the phone is just about useless except for phone calls and playing music. When I am indoors I loose my 3G and the network changes to a E. The Maps application no longer works, I cant WIFI any more and the phone just operates very slow. I have a 16g phone with 13.5 available. Is any one else having trouble since this new firmware?
Windows XP Pro