The biggest hurdle with programming the GM338 today is operating system compatibility.
| Error Message | Solution | | :--- | :--- | | ERROR: Model Mismatch | You tried to write a VHF codeplug to a UHF radio. Obtain the correct codeplug. | | Checksum Failed | The codeplug is corrupted. Read the radio again immediately without saving. | | Communication Timeout | Your baud rate is wrong. Force COM port to 9600, 8-N-1. | | DLL Missing (MSVBVM50.DLL) | Install Visual Basic 5.0 Runtime from Microsoft. | motorola gm338 programming software download upd link
Motorola radios do not use a "one-size-fits-all" software. For the GM338 (which is part of the Professional series), you specifically need Motorola Professional Radio CPS (Customer Programming Software). The biggest hurdle with programming the GM338 today
While the radio is older, the software has gone through several revisions. For the GM338, you are typically looking for: Motorola radios do not use a "one-size-fits-all" software
Important: Do not confuse this with the "Astro" or "APX" software used for public safety radios. Using the wrong software can render your radio inoperable ("brick" it).