Listen up
Hey Luna,
I'm assuming by now you already have this resolved and I'll bet that it was the battery. I'll also bet that you have a two piece charger. What I mean by that is that you have one piece that plugs into the wall and then a usb cord that plugs into the first piece. The transformer can't regulate the charge coming through the wall socket well enough and shorts out cellphone batteries. All of the newer phones like this are doing the same thing. I suggest finding a one piece charger so it doesn't happen again. You can continue using the usb cable with your computer, but don't use it to charge the phone anymore. Also, to touch on your camera force closing. This is generally caused by bad apps. The easiest way to explain it is like this. HTC, AT&T, and Google do not make the apps that are on the market. The apps on the market can be made by anyone. This means I could sit here at my computer and make an app. Just because it works on my computer, or my Android, doesn't mean it will work on yours. In fact, google has already released statements talking about apps that are no good for the phones, that still have not been pulled from the market. The apps that we have seen on the most phones that cause the most damage are as follows. Advanced task killer, Juice defender, Gtunes music, Anti-virus, and Myxer. These are just a few of many. I would venture a guess, without looking at the phones, that you have advanced task killer on your phone. Task killers are unneeded on your phone because there is already a built in task killer that is fully automated on the Androids. You can easily find press releases of Google saying that task killers are not needed and hinder the phones. This is because system process that have to run get closed out by the task killer. This includes things like your camera. I really hope this has helped you.
I'd also like to add something for rocketry. If you don't know what you're talking about, don't speak. There is nothing on the board for any phone that measures temperature and shuts down a phone when it gets too hot. When a phone gets hot it's from one of two things. First would be if it had been wet and corrosion on the board is causing a short, or second, if a battery has taken too much electricity and has shorted. In either case there is no internal thermometer, as it were, to even be able to tell a board to shut down. Phones generally shut off if there's a short because of the buildup of electricity and then subsequent release of that electricity into wrong transistors, overloading the board. THIS WILL RUIN A PHONE! So please do not spread false rumors that will make people think their phones will be ok because "if it gets too hot the phone will shut itself off."
Ok, back to you Luna. While HTC has been very hit or miss over the years I have to say their Androids have been surprisingly good. Please understand from above that I do know what I'm talking about when it comes to cell phones. I have been working on them and with them for over 10 years. I'm actually a technician with a cell phone company. While there are phones that have problems not all phones do. I have personally worked on some of the phones you have mentioned and know what problems they have. I can tell you that while one of your previous phones had a lot of problems, the others did not. If you are continuously having problems with all of your past phones and your current phone, you may have to come to terms that you, like so many others, are a bad phone owner. People treat their phones horribly because they take them around with them all day. People toss their phones around like they're $20 pieces of plastic. I have news for you, they're not. They are advanced pieces of circuitry and technology, and I know you wouldn't throw around a flat panel T.V. Try treating your phones better, and perhaps really pay attention to what you're doing with it. Maybe you're taking your phone into the bathroom while you take a hot shower? You'd be surprised how many people do. The condensation from the steam gets into your phone and causes liquid damage. Another thing I see a lot is people who put there phones in their cup holders in their cars. If you also put drinks in there, you probably have corrosion on your charging port, if it's on the bottom of your phone.
Hope everything has worked out for you, and that this has been educational for you all.
Duces