Sudden iphone disconnect | Phone/Device Issues and Features | Consumer forum

Daughter and I got new iphone fives for Christmas and cut down my old SIM card to fit; no problems since other than the limitations for iMessaging.
Yesterday her phone said "no service" all day. Mine had 5 bars and worked fine. To narrow things down, I tried swapping the SIM cards between them. Hers worked with my card, the "no service" followed her card to my phone. Then it got more interesting.

I swapped the cards back to original. Had trouble with my card being stuck in her phone - tray opening slightly and no way going any further. I tried the trick of trying to slip a paper and thin "sticker" in above the card but no way would it go in past the edge of the card. I am an occasional locksmith and have very thin metal about the thickness of a piece of paper but much stronger to help open a stubborn lock. I powered down her phone and slipped the metal strip in (a corner of it got slightly bent and this really helped it slide over the card which must have been sitting high in the tray).

After returning both cards to their rightful phones, neither one had service!

Called Speakout and a tech was very helpful - attempting remote reset, getting me to try dialing 611, him calling the phones, etc. No go. Conclusion was he thought daughter's phone was killing SIM cards.

A couple of hours later, she got a text - and she had service! I called my iphone from the land line and it got service! But neither of us could successfully send texts. So I tried resetting the network settings on my phone. Back to no service.

I read that the iphone can be very sensitive to the position of the sim card in the tray. I removed and reinserted the card a few times, but no change. Daughter will be going to the city in a couple of days so will try a new card. In the meantime, anyone have any ideas? I don't recall having to do anything at all when I first put that card in my new phone - is there some procedure to do with a new or reset phone?