I'm trying to modify the The textures (atlas.png) and the sounds of the popular game Flappy Bird but every time i try to install the newly modified apk i get the Application is not installed message and i am trying everything possible i find on this forum but i cant find a solution.
The way i modified to apk:
1. open the apk in 7zip
2. make the new files it Photoshop and audacity (made sure i saved in the right file type)
3. replaced the old files with the new ones
4 saved the apk and tried to install it on my phone (didn't work got the application not installed)
How i got the apk
1. went to android/data/apps/Flappybird.apk
Second way i tryed to install it:
1 copied the new apk to the directory i used above
2 restarted my phone
3. the app got automatically "deleted"
I need help plz