We do understand your concerns with the device losing connect with the SIM card and can provide some information to answer your questions.
The issue is currently under investigation. However, there is no estimated time for a resolution to be available. We would recommend that you keep watch on our website at HTC - Mobile Phones, Smartphones, Cell Phones, Tablets
or our Facebook page at http://www.facebook.com/HTC
Feel free to reply should you have any further questions. If you feel more comfortable discussing issues by phone, you can contact Technical Support at 1-866-449-8358, 6 am to 1 am EST, 7 days a week.
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