1. Download the assemble_202.sh script from the Various Keitai Assemble GitHub repository.
2. Place the assemble_202.sh script in the same folder as the nand dump and the oob dump. Make sure that both files have the same name, but the main nand part ends in .bin and the oob part ends in .oob
3. Use the following command adjusted for your specific file name:

   python assemble_202sh.py <dump_name>.bin output_dir

Example:

python assemble_202sh.py 202SH_PF58F0033M0Y1BG-n_data.bin output_dir

The output directory will contain many .bin files. Look for the largest one and use TestDisk to acquire the data. Note that you may need to look at multiple file systems within the largest .bin file to find the part with games.