So it’s been 2 1/2 weeks since I replaced the SIM Card in my DROID DNA, and the “SIM Card not detected” message has not returned. That’s the good great news.
The more interesting news, however, is from a conversation I had with a Verizon Tech Support guy this morning about an unrelated issue. He happens to have an HTC DROID DNA and also had the problem with the SIM card. He told me that the problem is not with the SIM card, it’s the SIM card tray. The SIM card tray is too small and that’s what causes the card to lose it’s connection to the phone.
I did some searching in various forums and found some threads that confirm that’s what Verizon is saying:
https://community.verizonwireless.com/thread/801377 (In this thread, there is a post from TamaraH_VZW where she says: “I also had the same concern with my DNA. It seems to be a hardware issue with the SIM card tray. HTC will replace the tray for you if you call them 866-449-8358.”)
So my takeaway from this is that if you get a new SIM card from Verizon and it doesn’t fix the problem, call HTC at 866-449-8358 and ask them to send you a new SIM card tray.