IPhone 3G problems with 3G...
My iPhone 3G was working perfectly with OS 3.0 but lately it's been playing up - now whenever I connect to my home router 3G overrides Wi-Fi... laptop has no problem with the router, no settings have been changed on the router - the router is not the problem.
Also now, while sitting at my desk I can't get a signal anymore... I have to turn 3G off to get a signal - the signal is full bar with EDGE.
I've done everything short of putting it in the freezer: -
- reset network
- forget this network
- renew lease
- all sorts of turning on & off 3G, data roaming...etc combinations
but no change... or improvement!
What's going on???
Try restoring your phone from your most resent backup, followed by syncing your iTunes content back to your phone. But first, find and delete the existing .ipsw file on your computer(it "may" be corrupt). You will have to turn on "Show All Hidden Files & Folders" to see it. This will force iTunes to download a fresh copy. The .ipsw file can be found here:
XP: C:\Documents and Settings[username]\Application Data\Apple Computer\iTunes\iPhone Software Updates
Vista & 7: C:\Users[username]\AppData\Roaming\Apple Computer\iTunes\iPhone Software Updates
OS X: ~/Library/iTunes/iPhone Software Updates