Wife & I each upgraded to an HTC Windows Phone 8X two weeks ago today. The first 6 days were great, loved the speed of the device, call quality, Live Tiles, etc. Then came the problems...
My phone was first to start. "SIM Card Error" popped up when I opened phone from lock screen. Nothing would work. I could write a text but the send button does not work. I received zero texts from others including my wife who showed me the 6+ texts she sent -- her phone appeared to show send was successful. I shutdown the phone and restarted. This fixed the SIM error temporarily for about a day. At that point, I did a factory reset. Again, this worked for about a day or two and the issues came up again.
Around the time of my factory reset, 10 days into the phones, my wife's phone started up too. Unlike my phone, neither the shutdown or factory resets fixed her issue.
We returned both phones for 2 brand new out-of-box HTX 8X yesterday. My phone is working well (24 hours so far) but my wife's new 8X, again, is acting up.
We turned the SMS acknowledgements on. Today, about 2 out or 3 texts actually make it to me. She gets no acknowledgements from texts to her friends. There is no confidence that the texts actually made it to her friends and extended family at this point.
I'm afraid my phone will follow this same path in a few days too.
Love the phone when it's most basic phone features (text, call, email) work. I fear that we need to return to Android phones at this point just so we know we are connected to the outside world properly.
Any help is greatly appreciated!