1. create a text file with the name "qawifionlymode.txt"
2. open the txt file, and fill with "FALSE"
3. then save the file
4. move it on the sd card
5. install apk to your desired game.
6. The game will ask for additional file is the file size up to hundreds of megabytes.
7. note the lower right section there will be words "CARRIER NETWORK", select the menu.
8. and complete.
sometimes there are some games can not use this way.