The Motorola GM338 is a legend in the commercial mobile radio (CMR) world. Known for its rugged build, clear audio, and reliable performance in construction, logistics, and emergency services, it remains a favorite workhorse.
The last version that worked universally without activation was R05.16 . If you find R06.12.05 or higher, you might need a Motorola Business Account (free to register, but tedious). Motorola Gm338 Programming Software Free