well guys the same has happened to mine. i also believe the same is happening to my n97 mini.

i rang vodafone up and told them under no circumstances would i take a repaired phone. after a day on the phone to them i got a replacement but i did have to wait a week and a half as it was out of stock.

i am left with the old n900 and its broken self. what should i do with it? vodafone didnt want it back!!