Keitai Tools is a python tool for extracting valid DoJa files from a variety of phone file systems.

1. Download keitai-tools from GitHub
2. Copy the top level java folder into the keitai-tools project. NOTE: This folder has different names on different devices including “java,” “javaap,” and “LIST” Choose the lowest possible folder that still contains all java apps in subfolders.
3. Use the following command, changing the name of the folder based on the phone that you have

python kttools.py top_folder_directory

Example: For F-03B, the top folder directory is “Java”

python kttools.py Java

SPECIAL INSTRUCTIONS FOR EARLY FUJITSU PHONES

Early Fujitsu phones often lack .jam files. These files need to be recreated by Keitai Tools. To recreate the .jam files, you will need to set up the environment with the following commands

For Windows:

python -m venv venv
venv\Scripts\activate.bat
pip install construct scsu

For Linux:

python3 -m venv venv
source venv/bin/activate
pip install construct scsu

After setting up the environment, you can proceed with Step 3 above.