this is my well looked after blackberry curve 8520
its just two months old
unlocked to any network
i have upgraded the software aswell.
the only drawback is the microphone is faulty but this is a very easy and cheap fix you can still make calls using the headset which is what i have been doing.
can post free after the payment has been settled via paypal,
text me if interested as i work 12 hours a day.
07557394848