There are two main hardware versions. Version 1 often uses firmware like L05.01.004 , while Version 2 uses v02.02.014 or higher. Installing the wrong version can brick your device.
Do not skip this section. A failed firmware update can brick your radio. Prepare the following hardware and software:
Select the correct under the communication settings. Click Read from Radio to pull your current data. baofeng dm1702 firmware update
Disclaimer: This guide is for informational purposes. Flashing firmware carries risks. Proceed with caution.
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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.
Upgrading to newer firmware versions (e.g., v2.2.22 or specific L05 versions) via the MD/Retevis RT72 CPS can resolve these issues, providing improved DMR handling and, in some cases, 4000-channel memory. Do not skip this section
How to upgrade firmware on DM-1701 radios with different versions?
Keep the radio connected to the PC in normal operating mode. Open your standard . Open the backup codeplug file you saved during Step 1. Click Write to Radio .
: Wait for the transfer utility to reach 100%. Do not touch the cable, turn off the computer, or interrupt the power during this window.
Select the correct under the communication settings.