Welcome to "our world". I'm on my 5th Tbolt, 4 of which had this very same issue. I'm on my 5th phone cuz of my Best Buy extended warranty. I had no problems till the "update" that came into...
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Welcome to "our world". I'm on my 5th Tbolt, 4 of which had this very same issue. I'm on my 5th phone cuz of my Best Buy extended warranty. I had no problems till the "update" that came into my phone in the middle of the night while I was sleeping in May 2013. When I woke up and looked at my phone the screen was locked with a circle and when calls came in little circles appeared that I had to drag to answer the call. When the phone started "blacking out" when I tried to use it I went to the Verizon store and they told me "a lot of people are having problems since the update." They tried a new sim card and when that didn't help sent me to best buy to get a replacement. That was 4 phones and 7 months ago. I had my phone number switched to my backup samsung intensity (which also turns itself off, but comes back on by itself) in May 2013. My original Tbolt was great from November 18, 2011 to May 2013. I was starting to love this phone! And yes it does get worse as time goes on. however, my 5th phone started turning off at Best Buy while I was picking it up about 3 weeks ago. I brought it home hoping I could download an update from HTC to fix the issue, since so many owners are having the exact same problem. I spent 2-3 hours on the phone with HTC support to no avail. Experimenting with the phone I found that in airplane mode the device stopped turning off and draining the battery. In fact the phone has been on for over 2 weeks and the battery hasn't needed charging in all that time and is only down 50%. I can use it to go "online" with the wifi app, use the awesome camera, calculator and flashlight. If I want to talk or text on it I can go online with my home's wireless wifi to googlevoice. To be perfectly clear, I have never never download any apps to any of my 5 Tbolts. The only apps on these phones came with them from the manufacturer. Hope you get someone that knows how to fix the phone part of the Tbolt.