Modifications always have the capacity to cause problems. Software mods can cause bugs and hardware mods can cause a new hardware problem. Usually these problems aren’t as annoying as the original problems that got fixed, but that doesn’t mean that they aren’t annoying. There are Samsung Galaxy S III users who are going through something similar to this right now. The issue is that if you use a cut down SIM card in the SIM card try, it sometimes gets stuck in there.
Normally, getting the card out requires some interesting tactics. Some suggestions include toothpicks with super glue and completely disassembling the phone. XDA Forum Member Nicholas68 has found an easier way. It isn’t the most technologically advanced way, but at least it doesn’t require using super glue.
It does take time, though, and a lot of it. What Nicholas68 suggests is using a thumb tack—or anything with a small, sharp point—and use the hole in the SD card tray to move it a millimeter at a time. Tedious? You bet, but it will also help get the card out of the tray with minimal damage to both. It seems silly, but when the alternative methods is super glue and phone disassembly, it’s probably a good idea to take the long route.