Why doesn't my bbm work on my blackberry?

I just recently unlocked my blackberry torch from bell to fido and the bbm doesnt work anymore is there any way i can fix it?

I have att service and i had a simple lg phone with a data and internet plan. Now i bought a used blackberry on ebay and i cant get the bbm to work or know how to create a user profile... how do i get this to work?

i have update the bbm but when i add pin's they remain pending and dont show up on the other people blackberry's??? anything please :)

my friends cant add them and their not getting my invites help!!!!

For some reason it doesnt work , it says its connected but i cant use it , bbm , blackberry app world and even facebook all dont work ... please tell me what i can do :)

I have recently got a Blackberry Peal 3G on pay as you go, but i am using my Orange contract. I cant get my Blackberry Messenger to work it says i am pending when my friends try to add me. My facebook app wont work either as it says my service plan doesnt...

I just got a new Blackberry Curve 8310 for at&t off of ebay and I have a data plan for at&t. When I got the phone yesterday, I couldnt find bbm and the internet doesnt work. It only opens the initial page but i cant go anywhere else like google...

I keep loosing service at my house and my bbm for my blackberry wont work unless if i have service. even when wifi is on n it says sos it still doesnt work i wanted to know why n yes i got data plan n everything.

ok so i dropped my iphone in the toilet but luckily my friend had an old blackberry so i simply put my simcard from my iphone in it..it works great with calling and texting and stuff but i can't figure out why my bbm doesnt work and also i cantdownload...