Current tools for extracting XSR1 require Windows.

  - Download [[https://github.com/usernameak/keitai_fs_tools/tree/master/xsr1|rfs_dumper.exe]] from Github
  - The input file should be stripped of everything before the first 91 5A 49 2C header. In HxD, you can do this by going to the menu and selecting Search>Find, then selecting the Hex-values tab and pasting in 91 5A 49 2C. Once you find this location, delete everything before it. Save this new file as input.bin.
  - Place onenand.bin, onenand.oob, and rfs_dumper.exe in one folder. Open a terminal in the folder with the dump (onenand + oob) and rfs_dumper.exe. Use the following command:<code>.\rfs_dumper.exe input.bin output.bin</code>
The file system can now be read and extracted with TestDisk.