Docomo Phones by Casio

This is an old revision of the document!

This page is a work in process.

Check the dumping hardware overview for a list of known preservation hardware.

If you need help, please come chat with us on the VGPC or No-Intro discord servers.

Casio only released one feature phone model for Docomo, the CA-01C.

Phone Model	File System (Main Storage)	FTL (Flash Translation Layer)
CA-01C	YAFFS2 + CramFS	None

Extracting Data

ktdumper

Reading File Systems

yaffs-tools

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.

Make sure your phone is connected to the PC (if using WSL, you will need to bind your USB device)
Download the 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.)

sudo ./ktdumper.sh [insert phone model] dump_nand

NOR

sudo ./ktdumper.sh [insert phone model] dump_nor

JAVA Folder (only works on select Mitsubishi/Fujitsu phones)
```
sudo ./ktdumper.sh [insert phone model] dump_java
```

Sample For D904i

sudo ./ktdumper.sh d904i dump_nand

WIP

Download the yaffs-tools repository from Github
Look in the /config folder for the config file that matches your data based on phone model and memory type (MLC or SLC)
Fill in the following command based on the file you are trying to extract
```
python extract.py <bin file> <output folder> <config>
```

If the data you expect does not appear in the output folder, you can introduce the following arguments:

  -d, --show-deleted, --no-show-deleted
                        Show deleted files in DELETED subfolder.
  -m, --show-missing, --no-show-missing
                        Show entries with missing parents in MISSING subfolder.
  -u, --try-undelete, --no-try-undelete
                        Try to restore latest version of a file marked as deleted.
  -s, --mix-spare, --no-mix-spare
                        Mix spare using filepath '[input (without extension)].oob'.

Example: N-04B MLC

python extract.py -m -u -s onenand_mlc.bin output_dir config/config_n04b_mlc.json

Once you've dumped your games, it's time to generate and submit metadata to a preservation project for validating and cataloging. See the dump submission instructions for more information.

Docomo Phones by Casio

Introduction

Methods

Ktdumper

Ktdumper Command Line

Ktdumper Live Iso

Reading Data

yaffs-tools

Gathering and Submitting Dump Info

dumping.guide