OS6 (9780) Use BBM Without BIS?

Hi I have a Q5& 9780,

but 9780 sometimes use.. so..

1, Only Wi-fi use.
2,Without BIS

Can I Use BBM?

OS6.359 ver. Plz Help me :(

No, you can't use it. I tried everything I could to make it work, but on older devices you need either BIS or BES. Facebook and other apps work on wifi, but not BBM. I also have a 9780. But if you have the q5, BBM must work on that through wifi, right? OS 10 is not limited like OS 5/6/7 in terms of app connectivity.