Use the official Baofeng CPS to read your radio and save your codeplug (channels, contacts). OpenGD77 uses a different codeplug format, but you can export your channels as CSV.
Often uses "L" series firmware (e.g., L05.01.004) and typically requires Retevis RT72 programming software. baofeng dm1702 firmware update
The DM-1702 has multiple hardware revisions that look identical, making finding the correct firmware crucial. 📡 Review: Baofeng DM-1702 Firmware Update Use the official Baofeng CPS to read your
Before doing anything, connect your radio to your PC using the official Baofeng CPS software and perform a operation. Save this .codeplug file somewhere safe. If anything goes wrong, you can restore your original settings. you can restore your original settings.