I can guarantee you I did, if I open the same game but in my mother's mobile I can do it but just with that other tool...
Could you have some one to test it with an android 5.1.1 lollipop mobile? or an emulator...
The point is I'm not an amateur in this, I used to make cheats for online games (where pointers and addresses are important) so I know which value I have to search for, but for some reason with GG I wasnt able to edit, and I spent quite a lot of time trying.
I would really appreciate if some one could try, with same OS I have.