Lukas G - 2015-10-19

I try to communicate S7-1200 with application in Android studio. This application will be my first app. read bit or word from DB block works very well but write (change bit) doesn't work.
I used manual https://www.youtube.com/watch?v=HrctU8MasE0 .
please give me advice how to write in DB block

please give me some example (code)of writing data to plc