If your residential status is still the Aufenthaltsgestattung (neither positive nor negative decision), unfortunately you won't be able to get Bafög. In Berlin, you can still receive social welfare from the city of Berlin.
It always depends on your individual case and the location. I recommend you to go to the university you are applying for and ask them about the regulations.
If you are in Berlin, you can stop by our place.
Telefon + 49 (0)30 68 05 43 77
Telefax + 49 (0)30 680 80 046