Recently I bought an HTC Desire overall I'm very happy with it. There seems to be one major flaw, it overheats quite easily causing it to reboot. I've run into this several times while driving using the navigation whilst recharging. Does anyone have any suggestions to workaround this problem? I've searched around but haven't found any helpful information.
[I also have a HTC Desire]
Your device overheats because its hardware is strained a lot during heavy use such as turn-by-turn navigation. This is compounded by the fact you probably have plugged it in the car charger as well, which is also known to generate some amount of heat (you probably have noticed this yourself when charging your phone normally).
There doesn't seem much that you can do to alleviate the problem, except turning off turn-by-turn navigation and only use the map to show you the route. You might also want to check whether there are other apps and services that strain unnecessary the device (frequent syncing could be an issue, as well as Bluetooth and mobile internet).
I also have the same problem i bought my HTC desire 3 weeks ago and if i stay on the internet for around 5 minutes, the phone starts to become extremely hot and if i continue ton use it it will cut of and reboot. my solution was take of the back cover and expose the battery. Taking this measure it kept my phone a little cooler and did not have to reboot.
I have a rooted HTC Desire. My phone used to overheat and reboot.
I tried to solve it by moving some of my apps from Phone to SD. The phone is generally good but the battery runs out very quick. I advise nobody to get a task killer application from the market as i have experienced that it kills the phone battery more.
I tend to use 3G mobile-internet and that made my phone to overheat and crash - after I started using WiFi, it made a difference. Also this phone has problems in general with the battery the best advice would be to get a new battery of Amazon or E-bay and it lasts twice as long and the phone doesn't overheat at all.