Ktdumper is a tool for extracting data from feature phones that are compatible with the Foma debug adapter, which includes all Docomo phones and select SoftBank phones. Please note that ktdumper //will not work// unless you have the Foma debug adapter.

Ktdumper is compatible with Linux and WSL (Windows System on Linux). It can be used as a command line tool or as a live Linux iso with a GUI. 

==== Ktdumper Command Line ====
  - Make sure your phone is connected to the PC with a debug cable. If using WSL, you will need to bind your USB device. The easiest way to do this is with [[https://gitlab.com/alelec/wsl-usb-gui/-/releases|wsl-usb-gui]].
  - Download the [[https://github.com/ktdumper/ktdumper|ktdumper repository]] from Github
  - Navigate to the main ktdumper folder, where the code will be executed.
  - You can execute the following commands
  * NAND (contains user data, downloads, etc.) <code>sudo ./ktdumper.sh [insert phone model] dump_nand</code>
  * NOR (usually default data, sometimes user data if the phone does not have nand) <code>sudo ./ktdumper.sh [insert phone model] dump_nor</code>
  * JAVA Folder (only works on select Mitsubishi/Fujitsu phones) <code>sudo ./ktdumper.sh [insert phone model] dump_java</code>

Sample
For D904i
<code>sudo ./ktdumper.sh d904i dump_nand</code>