Open your computer's and expand the Ports (COM & LPT) section to note which COM port number has been assigned to your cable (e.g., COM3).
When you launch the program, the splash screen should say . If it says "Commercial Series" or "MTSX", close it immediately—you risk writing incompatible codeplug data. motorola gm338 programming software download upd upd
Tip: Always save a backup of the original codeplug before making changes. Modify the Conventional Personalities (frequencies, PL tones) and (P1-P4 functions). to push the new configuration to the device. ⚠️ Common Troubleshooting "Couldn't open port": Open your computer's and expand the Ports (COM
Check the regional code of the software to ensure it matches your radio's regional suffix (e.g., GM338 AZ models require the Asia-Pacific software package). Hardware Tools Required for Programming COM3). When you launch the program
