I have two BB 7105T's from Tmobile.. Been trying to have them both use BB messenger with no success.. Mine works fine, however, my dads doesn't work. I send requests to add BB messenger contacts from mine and from his with no success.. I've reinstalled BB messenger on mine and his, but his never recieves the PIN or EMAIL request..An yes, they both have the data plans..

Any ideas? I did a search on this, but really didn't see anything, so if this has been discussed before, sorry for the repost ahead of time..

many thanks..

- josh

maybe I am wrong...but you might want to check firewall settings on both devices to make sure it's the same.