Bootlooping.

[SockmanTGR]

I haven't got any experience whatsoever with any of the tools for this phone as it's my girlfriends. Her phone has started bootlooping after an overheat. It flashes the htc logo goes black then flashes it again a few seconds later. Even when I go into recovery it just reboots again a few seconds later. After it starts I have to wait till the battery is completely dead before it'll stop. Any ideas?

 

[Shwanz]

I haven't got any experience whatsoever with any of the tools for this phone as it's my girlfriends. Her phone has started bootlooping after an overheat. It flashes the htc logo goes black then flashes it again a few seconds later. Even when I go into recovery it just reboots again a few seconds later. After it starts I have to wait till the battery is completely dead before it'll stop. Any ideas?

If she never rooted/twrp her phone, and you stated it was after an overheat, you're definately facing hardware problems. If the phone can't even stable boot into recovery to do a factory reset you're out of luck as trying it could result in hard brick.

Check if the power button isn't cloged with dust and is working properly...(if the power buttons is causing the phone to reboot the led buttons will flash 4-5 times)

Just my two cents...