How to install signed APK (non-root/root):
Google login will NOT work!
Instruction(s):
1- Install the playstore version
2- Navigate to InternalMemory/SDCard - Android - Obb and put .XX at the end of pl.idreams.skyforcehd -> pl.idreams.skyforcehd.XX
3- Remove the playstore version
4- Remove the .XX from the Obb pl.idreams.skyforcehd.XX -> pl.idreams.skyforcehd
5- Download mod and install it
6- Enjoy !!