Convert .jar To .vxp: Upd

Sometimes, automatic converters fail because they cannot read the internal instructions of the Java file. You can fix this manually by editing the manifest. This is an updated trick that works for stubborn files.

Requirements:

Steps:

  • Update the Archive: Drag the edited MANIFEST.MF back into the WinRAR window, replacing the old one in the META-INF folder.
  • Convert Again: Take this modified .jar file and run it through the online converter from Method 1.

    • There is no reliable, updated "converter" that turns a .jar file into a working .vxp file with one click. The only method is a manual, hacky process of repackaging a Java ME .jar and hoping the target Vodafone device accepts it without encryption.

    If you simply want to run an old Java game on a modern phone: Convert .jar To .vxp UPD

    If you are a developer maintaining a legacy Vodafone device:

    python jar_to_vxp.py mygame.jar -o output.vxp Steps:

    Before attempting a conversion, you must understand the architecture difference.

    python jar_to_vxp.py --batch ./jar_files/ Update the Archive: Drag the edited MANIFEST