This is an old revision of the document!
This page is a work in process.
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.
Introduction
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.
| Phone Model | Extractable? | File System/FTL | Tools |
|---|---|---|---|
| 705P | No | ||
| 705Px | No | ||
| 706P | No | ||
| 810P | No | ||
| 920P | Yes | Samsung RFS + Cramfs + XSR 2 | fs-tools (XSR2) |
| 820P | No | ||
| 921P | Yes | Samsung RFS + Cramfs + XSR 2 | fs-tools (XSR2) |
| 821P | No | ||
| 822P | No | ||
| 823P | Yes | Samsung RFS + Cramfs + XSR 2 | fs-tools (XSR2) |
| 824P | Yes | Samsung RFS + Cramfs + XSR 2 | fs-tools (XSR2) |
| 930P | Yes | Samsung RFS + Cramfs + XSR 2 | fs-tools (XSR2) |
| 830P | No | ||
| 931P | Yes | Samsung RFS + Cramfs + XSR 2 | fs-tools (XSR2) |
| 831P | No | ||
| 832P | Yes | Samsung RFS + Cramfs + XSR 2 | fs-tools (XSR2) |
| 940P | Yes | Samsung RFS + Cramfs + XSR 2 | fs-tools (XSR2) |
| 840P | No | ||
| 840P for Biz | No | ||
| 941P | Yes | Samsung RFS + Cramfs + XSR 2 | fs-tools (XSR2) |
| 841P | No | ||
| 842P | Yes | Samsung RFS + Cramfs + XSR 2 | fs-tools (XSR2) |
| 942P | Yes | Samsung RFS + Cramfs + XSR 2 | fs-tools (XSR2) |
| 001P | Yes | Samsung RFS + Cramfs + XSR 2 | fs-tools (XSR2) |
| 002P | No | ||
| 103P | Yes | Samsung RFS + Cramfs + XSR 2 | fs-tools (XSR2) |
| 301P | Yes | ext3 | |
| 401PM | Yes | ext3 |
Methods
Ktdumper
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 (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
Ktdumper Live Iso
WIP
Reading Data
fs-tools (XSR2)
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.
- Download fs-tools from Github
- In the XSR2 folder, run the following command
sudo apt install gcc-arm-linux-gnueabi qemu qemu-user-static qemu-system-arm
- Then build with the following command
arm-linux-gnueabi-gcc xsr_stl.ko main.c -o main
- 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.