I have an N9 question, if anyone can help answer, I would greatly appreciate it.

I was replacing the housing on my N9 because the sim tray latch on the original housing had broken and was not allowing the try to click in.

The dis assembly and reassembly seemed to go well, however when I turned it on, after about 40 seconds I got this error message "temperature too high device will be switched off'. The N9 then shuts off.

Not sure what I did wrong in reassembling it. Might it have something to do with the 1/2 inch square metal pad beneath the battery cover? does this provide heat sink for the chip underneath? If so, could I use heat sink compound for better cooling?

Any suggestions would be great.

Thanks!
JP