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MD380Tools -- Firmware Patches for the Tytera MD380

by Travis Goodspeed, KK4VCZ

The Tytera MD-380 is handheld radio transceiver for DMR and FM. In 2015, this project began patching that firmware by replacing the byte of the Chinese font with our own code, fixing bugs in the original firmware and adding new features that are useful to the amateur radio community.

More documentation

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!

A few of us are also on the #md380 IRC channel on Freenode.

A helpful site is available at http://md380.org/

There are also some related groups you may find interesting:

Introduction

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.

Build Status

Build Status

Supported Hardware

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

  • The "D"-Version (NoGPS) for radios without GPS

    • Tytera/TYT MD380
    • Tytera/TYT MD390
    • Retevis RT3
  • The "S"-Version (GPS) for radios with GPS

    • Tytera/TYT MD380
    • Tytera/TYT MD390
    • Retevis RT8

Both types of vocoder (old and new vocoder radios) are supported.

The DMR MARC user's database required a 16 MByte SPI Flash memory chip. In some VHF Radios is only an 1 MByte SPI Flash installed.

Dual band radios such as the MD2017 and MD-UV380 series are not supported.

Known models

Name vocoder GPS exp FW original FW
MD-380 old N D02,D13 D02,D03
MD-380 new N D02,D13 D02,D13
MD-380G new Y D02,S13 S13
MD-390 new N D02,D13 D13
MD-390G new Y D02,S13 S13
  • RT3 = MD-380 (old)
  • RT8 = MD-390G

License:

This software is licensed in exchange for two liters of India Pale Ale, to be delivered at a neighborly bar, preferably one without televisions.

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.

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:

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

Preparation of build environment

Additional steps for linux based installations

git clone https://github.com/travisgoodspeed/md380tools.git
cd md380tools
sudo cp 99-md380.rules /etc/udev/rules.d/ 

(The 99-md380.rules file is copied to /etc/udev/rules.d/ in order to allow users to access the radio over USB without having to use sudo or root permissions.)

Flash updated firmware for linux based installations

Turn on radio in DFU mode to begin firmware update with USB cable:

  • change your MD380 language setting to English
  • insert cable into USB.
  • connect cable to MD380.
  • power-on MD380 by turning volume knob, while holding PTT button and button above PTT.

For non-GPS-models do:

git pull
make flash

For GPS-models do:

git pull
make flash_S13

Flash updated users database for linux based installations

Turn radio normally on to begin database loading with USB cable

For European users:

make updatedb_eur flashdb

Note: for European users it is probably illegal to use the other method for updating, due to privacy laws. (This is no legal advice, please consult your lawyer to be sure.)

For the rest of the world:

make updatedb flashdb

(The users.csv file located in the db directory must be refreshed this way, with make updatedb, otherwise it will continue using any already-existing users.csv file when running make flashdb.)

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 dump the recent dmesg log, run md380-tool dmesg.

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:

  • Change your MD380 language setting to English
  • 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!

Codeplug Programming:

Reading and writing of raw Codeplug images is supported with the md380-dfu command. For graphical editing of codeplugs, you should probably use Tytera's MD80 CPS program or Dale Farnsworth's EditCP.

The beginnings of a plugin for CHIRP are also in this repository, but they were never completed.

More Info

Some articles from PoC||GTFO Volume 2

  • Jailbreaking the MD380, PoC||GTFO 10:8 (pocorgtfo10.pdf page 76.) by Travis Goodspeed
  • Running AMBE Firmware in Linux, PoC||GTFO 13:5 (pocorgtfo13.pdf page 38.) by Travis Goodspeed

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

The OpenRTX project is making from-scratch firmware for the MD380 and other radios with the M17 Mode.

Customization

Previously we customized firmware images with new startup screens. This is presently broken.