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How to modify the contents of the unreinforced v 1+v2 signature installation package?
The modification mainly involves the decompression and repackaging process, and the steps are as follows:

1. Decompress the APK file with decompression software to get a folder named "META-INF" and a file named "classes.dex".

2. Modify the contents that need to be changed, and change pictures, codes, etc.

3. The code has been modified. You need to recompile the code with a compiler to generate a new "classes.dex" file.

4. Use zip compression software to repackage the changed contents into APK files, and delete the original "classes.dex" file and "META-INF" folder.

5. Sign the new APK file with the signature tool of V 1+V2 to generate a new signature APK.