Updating the Baofeng DM-1702 is a rite of passage for owners. While the stock radio is functional, flashing custom firmware like OpenGD77 unleashes capabilities that rival radios costing three times as much. Proceed with caution, back up your data, and enjoy your upgraded radio.
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
Updating the Baofeng DM-1702 (also known as the DM-X or DM-1702B) is a delicate process due to variations in hardware and the lack of a single "official" global update portal. Because this radio is essentially a rebadged Retevis RT72
, many users rely on cross-compatible software and tools from the ham community. Two Way Radio Forum Preparation & Hardware Requirements : Most users successfully use a standard Micro-USB cable , though some reported better stability with the official Baofeng cable
: When connected, the radio may appear in Windows Device Manager as " No Printer Attached ." This is normal for this specific chipset. Backup First
: Before attempting any flash, use the CPS software to "Read" and save your current codeplug to avoid total data loss. Two Way Radio Forum Official & Stock Update Process baofeng dm1702 firmware update
Official firmware is often "hidden" or poorly indexed. Users suggest checking the bottom of the download pages on BaofengRadio.com Baofeng Tech
by scrolling past the manuals on what looks like a blank white page. Baofeng dm-x firmware update available?
Updating the firmware on a Baofeng DM-1702 (also known as the DM-X) requires entering a specific update mode and using the Customer Programming Software (CPS). Preparation & Hardware
: You can use a standard micro-USB cable or the specialized Baofeng programming cable. : Install the DM-1702 CPS. Note that some users find the Retevis RT72 programming software more stable as the hardware is nearly identical. www.ylab.ca Update Procedure Enter Firmware Update Mode Turn the radio Press and hold the
While holding the key, turn the volume knob to power the radio
The screen should remain black, but the status light will typically show a solid green or a flashing red/green pattern. Open Upgrade Tool : Launch the CPS software and navigate to Program -> Tool to open the firmware upgrade window. Load Firmware
in the tool window and select your downloaded firmware file (e.g., version 2.2.22 or 2.2.23). Flash the Device Critical Note : A window may pop up that appears to do nothing. You must click "OK" on this prompt to actually start the data transfer.
: Once the progress bar finishes and shows "Success," restart the radio normally. Two Way Radio Forum Troubleshooting Common Issues "No Printer Attached" Error
: When connected, Windows may identify the radio as "No Printer Attached" in Device Manager. This is
for this model's chipset and does not mean the connection failed. Read/Write Failures : If the software fails to read the radio, try the Retevis RT72 CPS Version Mismatch hardware typically uses firmware starting with L05.01.xxx hardware typically uses firmware starting with v02.02.xxx Two Way Radio Forum or help identifying your specific hardware version Baofeng DM 1702 Programming - Page 2
Absolutely — if you enjoy soldering and debugging. Post-update, the DM-1702 rivals radios costing 3x as much. If you just want a turnkey DMR radio, stick to an AnyTone. But for the hacker, the DM-1702 with OpenGD77 is a gem. Updating the Baofeng DM-1702 is a rite of passage for owners
Interesting note: Some DM-1702s ship with a hidden “engineering mode” accessible by Menu -> 6 -> 7 -> 7 -> 7 -> 7 -> 7 (seven times). From there, you can dump the original firmware over serial — no ST-Link required — but you can’t write back without the programmer.
Stock firmware is usable but clunky. The main reasons people update:
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. Interesting note: Some DM-1702s ship with a hidden
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.
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.
⚠️ Critical Warning: A failed firmware update can brick your radio. Ensure your computer does not go to sleep, the USB cable does not disconnect, and the battery is fully charged before starting.
