The Toshiba extraction tool can be downloaded here [[https://github.com/usernameak/keitai_fs_tools/tree/master/toshiba|here]]. It's used like this:
<code>toshiba_remap.exe -in bank1.img -in bank2.img -out output.img -bmsize (number)</code>
bmsize (number): The output file size in 16K blocks.

**NOTE:** W54t requires adding ``-w54t`` as an argument
<code>toshiba_remap.exe -in bank1.img -in bank2.img -out output.img -bmsize (number) -w54t</code>