Updating the firmware on your Baofeng DM-1702 Go to product viewer dialog for this item.
(Tier II DMR) is essential for fixing bugs, improving GPS stability, and ensuring compatibility with the latest digital radio features. Preparation & Requirements Before starting, ensure you have the following:
Hardware: A dedicated Baofeng USB programming cable (ensure the drivers are installed on your PC).
Battery: Ensure the radio is fully charged to prevent a power-off during the write process, which can brick the device.
Software: Download the official DM-1702 Firmware Upgrade Tool and the specific firmware .bin or .s19 file from a trusted source like Baofeng's official site or Radioddity. Step-by-Step Update Process 1. Enter DFU (Download) Mode
The radio must be in a specific bootloader state to accept new firmware: Turn the radio OFF.
Press and hold the Side Button 1 (typically the button above the PTT) and the PTT button simultaneously. While holding these buttons, turn the radio ON.
The LED indicator should flash (often green/red) or remain steady, indicating it is in firmware update mode. The screen will typically remain blank. 2. Connect to PC
Plug the programming cable into the radio’s side port and the other end into your PC’s USB port.
Open Device Manager on your PC to verify which COM Port has been assigned to the cable (e.g., COM3). 3. Run the Upgrade Tool Launch the DM-1702 Upgrade Software. Select the correct COM Port from the dropdown menu. baofeng dm1702 firmware update
Click Open or Browse to locate and select the firmware file you downloaded.
Click Download or Update. A progress bar will indicate the status. Do not disconnect the cable or turn off the radio during this time. 4. Finalize and Reset
Once the software displays "Success" or "Update Complete," the radio may reboot automatically. If it doesn't, turn it off and unplug the cable.
Factory Reset (Optional but Recommended): It is often best practice to perform a reset after a major firmware jump to prevent database conflicts.
Check the "About" or "Version" menu in the radio settings to confirm the new firmware version is active. Troubleshooting Tips
Connection Failed: Check that the programming cable is pushed firmly into the radio; these dual-pin connectors often require a very tight fit.
Driver Issues: If the COM port doesn't appear, reinstall the Prolific or CH340 USB-to-Serial drivers.
DMR ID: Firmware updates usually don't erase your codeplug, but it is wise to back up your codeplug using the standard programming software before you begin.
The Baofeng DM-1702 (often labeled as the DM-X) occupies a precarious position in the world of budget Digital Mobile Radio (DMR). While the prospect of a firmware update suggests potential for bug fixes or new features, the reality for most users is a journey fraught with technical hurdles and high stakes. The Technical Labyrinth Updating the firmware on your Baofeng DM-1702 Go
A primary challenge is the existence of multiple hardware variants that appear identical but require specific software paths.
Variant Disparity: Some units ship with L05.01.004 firmware, requiring RT72 programming software, while others utilize v02.02.014, which demands the MD CPS software.
The "Decrypted" Requirement: Users have found that standard firmware files often fail to load; specifically, files like fw_2.2.22-decrypted.zip are frequently necessary for a successful flash.
Hidden Menus: Advanced users can access hidden calibration menus via the CPS software using the password 66660501, though experts strongly advise against modifying these factory values without specialized equipment. Update Procedure and Risks
Updating the DM-1702 is not for the faint of heart. The standard procedure involves:
Entering DFU Mode: Connecting the radio via a standard micro-USB cable and powering it on while holding the '#' key.
Software Interface: Using specialized tools, such as the MD1702-tools available on GitHub, to push the new firmware image.
The Risk of "Bricking": Reports of radios becoming completely unresponsive ("bricked") after an update are common. Because Baofeng does not consistently release official recovery files for all hardware versions, a failed update can turn the handset into an unrecoverable "paperweight". Community Consensus Baofeng dm-x firmware update available?
OpenGD77 uses a "Contacts" and "Zones" system that is much more logical than Baofeng’s. You cannot copy-paste your old codeplug. Building an OpenGD77 Codeplug OpenGD77 uses a "Contacts"
Updating the Baofeng DM-1702 is not for the faint of heart. It is a collision of cheap manufacturing, legacy Windows drivers, and the stubborn ingenuity of the ham radio community. It is a process that teaches you more about USB stacks than you ever wanted to know.
When you succeed—when the blue backlight glows and the DMR LED blinks green—you aren't just using a radio. You are maintaining a digital artifact. You have taken a piece of mass-produced plastic and, through sheer will and a sketchy driver, bent it to your will.
That is the magic of the DM-1702. Not the hardware, but the ritual.
Updating the firmware on your Baofeng DM-1702 (also known as the DM-X) is essential for fixing bugs, improving Tier II DMR stability, and unlocking features like Talker Alias. This process requires specific software and a precise boot sequence to ensure the device is recognized by your PC. Pre-Update Checklist Before starting, ensure you have the following:
A Compatible Programming Cable: The DM-1702 can often be programmed using a standard Micro USB cable, though some versions may still require the specialized 2-pin Baofeng programming cable.
The Correct CPS Version: Firmware compatibility is split between two main versions. Check your current firmware in the radio menu first:
Version 1 (Firmware L05.xx): Typically requires the RT72 CPS software.
Version 2 (Firmware v02.xx): Uses the standard MD CPS software.
Windows OS: Most Baofeng software is designed for Windows; if you encounter issues, try running the software in Compatibility Mode for Windows 8. Step-by-Step Firmware Update Guide
Follow these steps to safely flash your device using the official Baofeng DM-1702 Programming Software: Baofeng Download Area
Even with careful preparation, things can go wrong. Here is how to fix them: