Last night I was using the "access point" software on my N9 for the first time. At the moment I don't have WiFi signal in the garden and the N9 stepped in to fill the gap, and did so brilliantly. I was quite impressed by the quality of the access point software and how configurable it was, and web browsing, IM and email was surprisingly responsive over the 3G connection. Then my phone suddenly died.

I had gone inside to get a drink and when I came back out I noticed the screen was blank. I picked up the phone and it was VERY warm, definitely not the kind of temperature I'd expect from a mobile. I had had it plugged into the USB socket to keep the battery topped up so it shouldn't have run out of juice. The thing is, after trying all the usual stuff, including leaving it plugged into the wall charger overnight, holding in the unlock button for 1min+, etc, it's still completely and utterly... dead No sign of life whatsoever, no white charging light, no little vibration, nothing, nada, zip - just a depressingly blank brick.

So. Questions. Is there anything else I can try, without voiding my warranty? And just how do I go about getting it fixed under warranty? I tried looking for info on Nokia's website but they just say "restart, reset, update" as if that was the universal solution to all faults...