I have the same issue. I cut the regular sim to a microsim and then inserted it into my iphone 4. Now the tray wont come out. Do we know for sure that I can remove the sim card by taking the unit all apart? I can go to the Apple store but am afraid that they would replace me with another iphone 4 which I dont want. I have my iphone 4 jailbroken and also am able to maintain my baseband on the phone to be 01.59 Any help on this would be greatly appreicated.