https://www.technologywindow.com/edit-android-applications-using-apktool/ Step 01 - Install frameworkd for apk file apktool if appname.apk Step 02 - Decompile apk file apktool d appname.apk Step 03 - Fixed androidmanifest.xml file if needed Step 04 - Build apk file from the folder and your new apk file is at appname/dist folder apktool b appname Step 05 - Sign apk file with keystore jarsigner -verbose -sigalg SHA1withRSA -digestalg SHA1 -keystore MREEnglish.keystore mre_english.apk mre-english Step 06 - Align apk file to be able to upload to playstore again cd C:\Program Files (x86)\Android\android-sdk\build-tools\28.0.3\ zipalign -f -v 4 mre_english_64bit-signed.apk "D:\mre_english_64bit-signed-aligned.apk"