Hey all whats going on just bought my first BB its a Bold 9700 got it for a steal been used for about a few months the guy moved and switched carriers, all i have to do now is unlock it, The BB is T-Mobile and im with At@t so its gonna be a while for me to get use to this, now ive heard that i can update the OS system if so would it be necessary for me to do? and also what would i have to look out for on this phone? :D