#MD380 USB Tools

by Travis Goodspeed, KK4VCZ

This repository contains tools for working with codeplugs and firmware of the Tytera MD380, which is also sold under a variety of different brand names. The codeplug format is sufficiently similar to the radios from Connect Systems (CS700, etc) that these tools might someday be made compatible.

Client Tools:

• md380-dfu reads and writes MD380 codeplugs and firmware.
• md380-tool communicates with the patched firmware. (Fancy stuff!)

Development Tools:

• stm32-dfu modifies firmware for jailbroken devices. (No longer required.)
• md380-fw wraps and unwraps devices firmware.
• md380-gfx modifies firmware graphics.

These tools are all wrapped into Makefile, which will download the official firmware, patch and flash it. Run make flash after booting into the recovery bootloader by holding PTT and the button just above it during power-on. Once device has been powered on, run make flashdb to write the DMR MARC user's database to SPI Flash memory. This works only with Radios that have 16 MByte SPI Flash memory chip installed.

##License:##

The majority of this software is licensed in exchange for two liters of India Pale Ale, to be delivered at a neighborly bar, preferably one without a god-damned squary-stary-box.

The DFU tools are GPL licensed, forked from old examples in the Ubertooth Project. If you want md380-dfu or stm32-dfu under different terms, you should probably discuss it with the Great Scott Gadgets folks over some beer.

Tytera's firmware is of unknown license and is not included in this repository. We use a heap-less printf library under the BSD license.

##Supported Hardware##

The patched firmware is known to work on the following devices:

• Tytera/TYT MD380
• Retevis RT3

##Specifications:##

• The MD380 uses a custom variant of DFU that isn't quite compatible with the spec. Their code seems to be forked from an STMicro example for the STM32 chip.

• Universal Serial Bus Device Class Specification for Device Firmware Upgrade, version 1.1: http://www.usb.org/developers/docs/devclass_docs/DFU_1.1.pdf

##Requirements:##

• Python 2.7 or newer: http://www.python.org

• PyUSB 1.0: (0.4 does not work.) http://sourceforge.net/apps/mediawiki/pyusb/

• libusb 1.0: (0.4 does not work.) http://www.libusb.org/

This project should work across Linux, Mac OS, and Windows, but has not been tested on all platforms. A separate client, MD380Tool, is under development for Android.

###Installation of required packages### Debian Stretch:

apt-get install gcc-arm-none-eabi binutils-arm-none-eabi libusb-1.0 python-usb

Debian Jessie:

apt-get install gcc-arm-none-eabi binutils-arm-none-eabi libusb-1.0 git make \
                curl python-pip unzip
pip install pyusb -U # update PyUSB to 1.0

##Convenient Usage:##

Anything with md380-tool requires a recent version of our patched firmware. You can check your version in Menu/Utilities/Radio Info/Version. If it's a recent date you're good; if it's a number, you need to upgrade.

To actively watch incoming calls, printing a call log with name and callsign:

md380-tool calllog

To dump the recent dmesg log:

md380-tool dmesg

##Advanced Usage:##

To download a raw (headerless) codeplug into the MD380.

m380-dfu write <filename.img>

To upload a raw codeplug from the MD380.

md380-dfu read <filename.img>

To dump the bootloader from the MD380. (Only in radio mode, only on Mac.)

md380-dfu readboot <filename.bin>

To exit programming mode, returning to radio mode.

md380-dfu detach

To extract the raw app binary from an ecrypted Tytera firmware image:

md380-fw --unwrap MD-380-D2.32\(AD\).bin app.bin

To wrap a raw app binary into a flashable Tytera firmware image:

md380-fw --wrap app-patched.bin MD-380-D2.32-patched.bin

To export all sprites and glyphs from a raw firmware image:

md380-gfx --dir=imgout --firmware=patched.bin extract

To re-import a single modified PPM sprite (must restore text header of the originally exported .ppm file; gimp et al. discard it):

md380-gfx --firmware=patched.bin --gfx=0x80f9ca8-poc.ppm write

To flash the Ham-DMR UserDB to SPI Flash. Works only on radios with 16MByte SPI-Flash.

generate the upload file

   wc -c < db/users.csv > data ; cat db/users.csv >> data

program to flash with: (very experimental)

   md380-tool spiflashwrite data 0x100000


or (all steps included): (very experimental)

   make flashdb  

After successfully flashing, the radio will be restarted.

##Firmware Compilation##

This archive does not ship with firmware. Instead it grabs firmware from the Internet, decrypts it, and applies patches to that revision.

You can reproduce the patched firmware with make clean dist after installing an arm-none-eabi cross compiler toolchain. The firmware and a Windows flashing tool will then appear in md380tools-yyyy-mm-dd. Alternately, you can flash them from Linux with make clean flash, after starting the recovery bootloader by holding PTT and the button above it during a radio reboot.

##Windows Firmware Installation##

You can install any of these patched firmware files into your MD380 by using the respective .bin file with the Tytera Windows firmware upgrade tool, "upgrade.exe", available inside their firmware upgrade downloads. Here are the steps:

• Turn off your MD380 using the volume knob.
• Attach the Tytera USB cable to the SP and MIC ports of your MD380.
• Attach the Tytera USB cable to your host computer.
• Hold down the PTT and the button above the PTT button (not the button with the "M" on it).
• Turn on your MD380 using the volume knob.
• Release the buttons on the radio.
• The status LED should be on and alternating between red and green, indicating you're in flash upgrade mode.
• Start the Tytera "Upgrade.exe" program.
• Click "Open Update File" and choose one of the .bin files produced from the process above.
• Click "Download Update File" and wait for the flash update process to finish. It takes less than a minute.
• Turn off your MD380 using the volume knob.
• Disconnect the USB cable from your MD380 and host computer.
• Turn the MD380 back on, and you should see the "PoC||GTFO" welcome screen. You're running patched firmware!

##Chirp Driver:##

Also included is a partial driver for the MD380 in Chirp. This driver doesn't yet support the essential DMR features, but it does handle analog channels and banks well enough to load analog repeaters into your radio.

This driver can't yet communicate with the radio, so use md380-dfu read foo.img to read an image out of the radio, then open it in Chirp after installing chirp/md380.py as a driver. Once you've made your changes, you can load the image back in by running md380-dfu write foo.img.

##More Info##

An article by Travis Goodspeed on jailbreaking the MD380 was released as PoC||GTFO 10:8. (pocorgtfo10.pdf page 76.)

Pat Hickey has some notes and tools up in his own repository, https://github.com/pchickey/md380-re

Customization

Images extracted from the firmware have comments at the beginning of the file, telling md380-gfx where they came from. Comments begin with a '#', and end with a new line.

Image editors like GIMP will discard the original comments, but you can replace them by opening the file in a text editor and copy-pasting the comment lines from the original extracted file to your custom image.

Boot logo

There are several boot logos provided that you can choose from by editing patches/2.032/Makefile, and commenting/uncommenting as you see fit.

The original boot logo is 160x40 pixels, and only 2 colors. This means an image that has the same properties can be written into the firmware as a direct replacement, as seen in the Makefile.

An image with more than two colors requires the "relocate" argument to md380-gfx. There are examples of this in the Makefile as well.

Support

To support users by using the md380tools or the resulting patched firmware a Google Group is public opened and reachable via https://groups.google.com/forum/#!forum/md380tools. No extra registration should be necessary. You could also feed it via e-mail at [email protected]. So feel free to put in your questions into it!