Recently my Nexus 7 died somehow and had to reflash the factory android image. Luckily, my bootloader was already unlocked so I could save the important data using adb from recovery mode.
I also backuped the data of a game (at least I think so), simply saving
/data/data/com.my.game
I reflashed the factory image, the tablet runs well now. I also reinstalled the apps, including my game, then rooted the tablet so I could restore saved data to /data/data. Then I pushed the saves back to the folder (I had to be tricky because adb push did not work directly to /data, so I pushed it to /sdcard then copied it with adb shell as root).
Everything seems to be OK but unfortunately the game refuses to use the saved data, it simply crashes. When I restart my tablet, it runs again but without any saves, so I guess it deletes all saved data.
Could you give me any advice how to make my game work with the saved data?
Check the owner of all files under /data/data/com.my.game. It is possibly root and it should probably be com.my.game (or more precisely the userId of the app com.my.game, but most of the time they are the same).