Firstly hi all, I'm new to the forum and Blackberry. I have a problem with this model (8310) my phone cuts out at very random intervals during different operations and will not come on again unless I plug in the charger, even though there has never been less than 50% of the power in the battery. I'm at a loss as to why this is happening, any help would be appreciated. P.S. the phone was originally on voda phone then unlocked