Baofeng Dm1702 Firmware Update | Ad-Free

Press and hold down both the button and the SK1 (Side Key 1) button simultaneously.

The scanning speed on stock DM-1702 firmware is slow. The OpenGD77 firmware reduces scan resume time significantly, turning the radio into a viable scanner for public safety or ham radio use.

The firmware tool cannot locate the radio. Check your Windows Device Manager to ensure the COM port number corresponds to your programming cable and that the drivers are up to date.

Using incorrect firmware (e.g., trying to flash a DM-1701 file) will likely brick the unit. baofeng dm1702 firmware update

Ensure you use a "decrypted" firmware file if using official tools, as standard encrypted images may fail to load . Critical Troubleshooting & Safety

: Once the progress bar finishes and shows "Success," restart the radio normally. Two Way Radio Forum Troubleshooting Common Issues "No Printer Attached" Error

The Baofeng DM-1702 is a dual-band DMR-capable handheld. A firmware update can add bug fixes, improve digital/analog operation, and patch radio stability issues. Firmware updates are device-specific and can carry risk (bricking, losing settings, or invalidating warranties) if done incorrectly. Press and hold down both the button and

Never update your firmware without backing up your current channels, talkgroups, and zones. Firmware updates often perform a factory reset on the device memory.

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.

The factory upgrade tools require a Windows operating system (Windows 10 or 11 preferred). The firmware tool cannot locate the radio

Use the official Baofeng USB programming cable. Cheaper, unbranded data cables often fail to establish the stable connection required to flash firmware safely. The Firmware Update Tool:

Connect the USB cable to both the PC and the radio (while the radio is off).