The phone first died on 21st December 2012 (I chuckle when people tell me that my phone "took one for the team").
After a motherboard replacement, the phone crashes at least every 12 hours (overheating to around 56 Celcius) and now does not connect to the network. I now use it on wi-fi, without the SIM or memory card (and yes, it still crashes every 12 hours).
One of the problems (Not registered on network) is at http://youtu.be/wfzEVrSnZDg
I will add the fault log soon...