iphone 4 urgent help
ive got an iphone 4 on the tmobile network it is not jailbroken. the problem was that my my iphone would only work with one particular tmobile sim which was activated in the apple store.
if i try another tmobile simcard at home on my itunes i will get a the sign on the iphone to connect to itunes. after connecting to itunes i will get a message reading " the sim card inserted in the iphone does not appear to be supported"
i tried a restore and even the working sim no longer worked.
i went to the apple store and after checking the problem they gave me a replacement. i took two sims with me at the store and tried both of them to see if they both worked, and they did. i got home and tried another tmobile sim and i got the same message " the sim card inserted in the iphone does not appear to be supported".
after a restore none of the working sims worked any more and i kept getting this message " the sim card inserted in the iphone does not appear to be supported"
i went again to the apple store and explained the problem, they confirmed it was a problem and once again replaced it. i asked if this replacement will work fine with all tmobile sims and he said yes it will.
anyway i got home to put my back up on it and when it finalised i once again get this message " the sim card inserted in the iphone does not appear to be supported".
i am really really fed up now.
why is this happening? and how can i solve this.
i am certain it cant be the iphones that are defective as its three iphones in a row. im also certain its nothing to do with tmobile as all those sims work perfectly fine in my dads tmobile locked iphone 4.
any help would really be appreciated.