The OS will refuse to install an unsigned APK. The user must sign it. jarsigner -keystore my.keystore modified_game.apk alias_name Or use a GUI tool like ZipSigner to apply a generic test signature.
Understanding APK Repacking: A Deep Dive into APK-Based Modification apkefor repack
: The modified files are re-assembled (repacked) back into a new APK package. The OS will refuse to install an unsigned APK
