Battery Low [Q] Battery dead or just drained?

Hey folks,

I'm sitting here with a very stylish paperweight. Can't charge it. No LED, not even the blinking red one. Just nothing.

Here is what happened:

My phone started to get pretty hot, so I decided to turn it off, just for safety. It had around 90% battery left at this time. When I turned it back on an hour later, the battery percentage was at about 18-19%. I used the phone as usual. No strange behavior, no sign of malfunction. After using it for quite a bit, the phone shut down as expected. The battery percentage fell in an usual matter. It went off normally.

Now, when I try to charge it, it doesn't seem to show any vital signs.

Here is what I tried:

- charging it for 2 hours with HTC Wallcharger, also tried out 2 other chargers
- Power + VOL UP
- Power + VOL DOWN
- both with a bright light pointed at the sensor

Still nothing. Connecting it to PC won't do anything good atm.

Is the battery dead, or is it just terribly drained? Did I even manage to fry the MB? Is there anything I could do?

Turning it in for warranty repair won't be an option, since it's (you guessed it) rooted and therefore unlocked. I flashed CM11 nightly about a week ago, had Codename Lungo before.

This is quite a bummer. I hope, you good people might be able to help me.

Thanks in advance,
MightyToph