04-04-2013 04:46 AM
Solved! Go to Solution.
04-04-2013 04:43 PM
I'm not sure why/how this could happen, but it may be that both devices/BBMs are tied to the same Blackberry ID? I believe that the newer versions of BBM use the Blackberry ID to backup contact lists and settings etc.
Did the other person wipe the old device when they started using it? If not, it may be worth asking them to do so and then setting up the device with a brand new Blackberry ID...