Radio / SIM stopped working

[untruestory]

I bought two E4s (perry xt1768) direct from Motorola the day they were released for my kids. My daughter's went on Sprint and my son's went on Cricket. Around 11/1 my son's phone stops getting any service. Two weeks later my daughter's phone does the same. Neither phone shows any service or will recognize a SIM.

Anyone else have this problem?
I'm sending them in on Monday for warranty if I must but both have seen some bumps and scratches so I'm worried they won't cover it.

 

[TomJ2]

Same here. Have had about two-months. No event that I can point to, received a call fine, put back in pocket, noticed I hadn't heard from anyone or received any texts in a while (about an hour and a half), checked phone and no connect. Doesn't recognize SIM. Tons of info online about this issue, usually happens around 2-months into ownership. Can't seem to find anything about this issue here on XDA??