I have had exactly the same issue- the phone is not on for more than 2 mins before switching itself off. Happened constantly and so many times I had to take the battery out and leave off all day. Strangely, this only happened when visiting my parents near Fareham in Hampshire- as soon as I arrived near their house I noticed it started, and within a few minutes of leaving the phone was ok again. This has also affected another blackberry in the house for the last three days. There is normally very poor reception in their area, but I have never seen anything like this happen. The people in the O2 shop said it was def not a network issue and was a Blackberry issue, and we should contact them directly to try and fix this. They also mentioned over 30 other people had come into the shop with issues...but couldnt offer any explanation or help. Needless to say issue is not fixed by helpline suggestion of backing up phone to PC. Seriously fed up with unreliable Blackberry, as are the folks who havent been able to use their BB for the last three days at all. My Dad is now using his very old Sony Ericsson, which he has never had any issues with at all, despite it being over 5 years old. Does anyone know why this is happening?? I really dont think it is a media card or SIM issue, as my phone is now working fine after leaving the area.
UPDATE: O2 now say this is because I needed an update to my software, which I have done. Im out of the affected area so dont know if this has fixed anything. The other BB affected has started working (with no update to software) so seems to have been a random occurance. Desperately waiting for my upgrade in January, bye bye troublesome BB!
