Softbank Phones by Panasonic

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.

Softbank Panasonic phones fall into two categories. The later, higher end devices are very similar to Docomo Panasonic phones, and are compatible with the same tools. These phones run on a customized form of Linux, and they use the UniPhier set of CPUs.

The earlier models, along with some of the later budget models, run on the APOXI operating system. These phones use CPUs similar to those in Sony Ericsson phones. The APOXI phones are closely related to international Panasonic phones that were released concurrently, such as the Panasonic EB-VS3 and EB-VS7.

Note that many of the APOXI phones that don't have a USB exploit can be extracted with a direct chip dump.

Extracting Data

1. ktdumper

Reading File Systems

1. [[#fs-tools (XSR2)]

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

sudo ./ktdumper.sh d904i dump_nand

Ktdumper Live Iso

NOTE: This extraction method may not work on WSL. If you are having errors after trying all steps, try switching from WSL to a full Linux installation.

1. Download fs-tools from Github
2. In the XSR2 folder, run the following command

   sudo apt install gcc-arm-linux-gnueabi qemu qemu-user-static qemu-system-arm

3. Then build with the following command

   arm-linux-gnueabi-gcc xsr_stl.ko main.c -o main

4. Place onenand.bin and onenand.oob into the XSR2 folder and run the following command based on the type of part

   export QEMU_LD_PREFIX=/usr/arm-linux-gnueabi
   ./main onenand.bin onenand.oob B output.bin

   export QEMU_LD_PREFIX=/usr/arm-linux-gnueabi
   ./main onenand.bin onenand.oob A output.bin

   export QEMU_LD_PREFIX=/usr/arm-linux-gnueabi
   ./main onenand.bin onenand.oob 8 output.bin

After this, you must use TestDisk to acquire the data.

TestDisk can be used on either Windows or Linux. It is available for download here. Once you have downloaded TestDisk, use the program to open your current .bin file.

1. When you open a .bin file with TestDisk, you will have the option to select a media. There should only be

   >Disk <your file>

   Press enter to proceed.

2. When asked to select a partition table type, select None

   [None ] Non partitioned media

3. On the following page, press q to quit or select

   [ quit ]

4. In the new menu, move up the menu and select

   [ Analyse ]

5. Press enter to continue with

   [Quick Search]

6. You should now see a partition labeled with a file system like FAT16 or FAT32. Don’t press ENTER. Instead, press p to list files.
7. Press a to select all files.
8. Press C (note the capitalization and hold the shift button!) to copy the selected files.
9. Choose the output folder. Press C when the folder is correct.

You should now have all the extracted files.

Note: For select devices (such as F905i and D905i), you need to select None → Undelete rather than the usual TestDisk procedure.