Blackberry Messenger.

[_MollyMAE]

My Blackberry messenger just stopped working out of nowhere.
I first got my Blackberry in June and it hasn't been working since August.
I have a Blackberry Pearl 8110 and I am on T-Mobile.

[penguin3107]

Take the battery out of your BlackBerry and then put it back in.
Also, do you subscribe the BlackBerry Data Plan from T-Mobile?

[kirrinjones]

Wirelessly posted

If you do have the data plan, then try downloading the BlackBerry Messenger again http://mobile.blackberry.com on your device.