Install the Virtual COM Port (VCP) drivers, typically the Prolific or STM Electronics USB drivers, depending on your cable chip.
The update tool cannot see your radio. Check that you are using the correct COM port in the software dropdown menu. Ensure the radio is properly booted into DFU mode.
Press and hold the while turning the volume knob ON . baofeng dm1702 firmware update
Visit the official Baofeng website or an authorized distributor's support page. Look for the download section.
Absolutely — 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. Install the Virtual COM Port (VCP) drivers, typically
Before downloading software, check your current firmware. The DM-1702 has two distinct versions with incompatible software: Version 1: Firmware typically looks like L05.01.005 . This version generally uses RT72 programming software Version 2: Firmware typically looks like v02.02.014 . This version uses MD CPS software (e.g., v1.00.66 or v1.00.78). Two Way Radio Forum 2. Required Tools Dmr1702 firmware update fail - Two Way Radio Forum
Never update firmware without saving your channels and contacts first. Connect the cable to the radio and turn the radio on. Open your DM-1702 CPS software. Ensure the radio is properly booted into DFU mode
(Same as above: PTT + Monitor button while powering on).
Click or Browse within the utility to locate and select the downloaded firmware file. Click Update , Write , or Start .
Ensure your radio is communicating with the PC.