Download Repack | Motorola Gm338 Programming Software Exclusive

Aftermarket cables often need an older driver version (v3.2.0.0) for Prolific chips. Disable driver signature enforcement temporarily or use a Windows 7 virtual machine.

No. CHIRP does not fully support the GM338. Some people have tried modifying CHIRP for Waris series (GM338 is part of the Professional Series, not Waris). Do not attempt – you risk bricking. Aftermarket cables often need an older driver version (v3

The only safe software is Motorola CPS.

Many amateur radio clubs own licensed copies for member use. Join your local club (ARRL affiliate) and ask politely. CHIRP does not fully support the GM338

Run the installer as Administrator. Accept defaults. Do not connect the radio yet. The only safe software is Motorola CPS

If you are a business, dealer, or certified radio technician, request access to Motorola Solutions Online. After approval, you can download the exact CPS for GM338 under “Legacy Products.”

Click Write. Wait 20–30 seconds. Never interrupt power during writing.