How to Unpack, Repack APK Files

Posted: January 9, 2012 by androidapk in androidapps
Tags: , ,

Occasionally you may reverse engineer android apk files and then repack them with minor tweaks/hacks employed.

Its quiet easy to learn how to unpack/repack .apk files fast. TO get started all you needs is a Winrar (or equivalent) and file Formatter, which is created by despotovski. This app gives you a simple GUI to make all the changes you want.

Download Formatter | Mirror

How to unpack .apk files:
1. Open Formatter

2. Click the “Choose File” button and choose your apk file. Then, in the first text box, enter “.rar” (without quotes). After that, enter your desired name for your .rar archive and click the big “Rename!” button

3. Go to the folder where your .apk file was. You should see a .rar archive, named by the name you entered in Formatter. Extract it with your archive manager


How to repack .apk files:
1. Compress the extracted files in a .rar archive (compress them normally like any other archive)
2. Open Formatter
3. Choose the .rar archive you made a minute ago
4. Set the format to .apk
5. Set the name to whatever you want
6. Click the big “Rename!” button


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