Can I Re-sign An .apk With A Different Certificate Than What It Came With?
Answer : try this 1) Change the extension of your .apk to .zip 2) Open and remove the folder META-INF 3) Change the extension to .apk 4) Use the jarsigner and zipalign with your new keystore. hope it helps If you are looking for a quick simple solution, you can use Google's apksigner command line tool which is available in revision 24.0.3 and higher. apksigner sign --ks release.jks application.apk You can find more information about apksigner tool, at the developer Android site. https://developer.android.com/studio/command-line/apksigner.html Or, alternatively, you may use an open-source apk-resigner script Open Source apk-resigner script https://github.com/onbiron/apk-resigner All you have to do is, download the script and just type: ./signapk.sh application.apk keystore key-pass alias zip -d my_application.apk META-INF/\* keytool -genkey -v -keystore my-release-key.keystore -alias alias_name -keyalg RSA -keysize 2048 -validity...