Dead iPhone 3GS after ATT Unlock
After I upgraded to a 4S, I kept my 3GS in hopes of someday unlocking it for my wife to use on t-Mobile. I was pleased to hear that ATT and Apple would provide an Unlock for out of contract iPhones. I got the unlock and everything went well for about week. Then one morning the 3GS was completely dead. I tried every reset and plugging it in to every type of charger. Still dead. I even took into the Apple Store and they said they couldn't do anything and would replace the 3GS for $150. This phone worked fine until the unlock, it may be coincidence but phone has never been dropped, or wet and is grreat condition. $150 is not an excessive amount if I can unlock it, which Apple says I can. I thought about replacing the battery for about $25 but Apple says that if I open it up the $150 is off the table. I would like to keep this phone since it is already unlocked and if I replace the battery could Apple really tell.
Any thoughts would be appreciated.
MacPro, Mac OS X (10.6.7)