Once the updater says "Success," close the software. Unplug the USB cable. Turn the radio off (Volume knob). Wait 10 seconds. Turn the radio back on normally. You should see the version number changed in Menu > Radio Info > Firmware Version.

Have a successful firmware update story or a bricking disaster? Share your experience in the comments below to help the next DM-1702 owner.

This is the biggest reason. The DM-1702 hardware is nearly identical to the popular Retevis RT-84. The open-source firmware turns your $80 Baofeng into a $400 professional radio, adding features like:

Click . A progress bar will appear. This takes 3–5 minutes.