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Your software must support both protocols. Older "Maxtrac" or "GM300" software will not work.
| Issue | Likely Cause | Solution | |--------|---------------|----------| | "Communication failed" | Incorrect COM port / missing driver | Install USB drivers; check Device Manager | | "Radio not supported" | Using CPS 1.0 or older | Must use CPS 2.0 | | "Codeplug too new" | Radio has newer firmware | Update CPS to latest version | | "Read/Write password" | Radio is password-locked | Obtain password from previous owner/dealer | | Generic cable not working | Incorrect chipset (e.g., Prolific vs FTDI) | Try manual COM port setting; or get genuine cable | motorola dep450 programming software
CPS replaces the older and is the only legal way to program most modern Motorola two‑way radios. Your software must support both protocols
has a few specific considerations regarding accessibility and usability. Software Accessibility & Cost Free vs. Paid Unlike older Motorola models, the DEP450 uses a
: A standard Micro-USB to USB-A cable. Unlike older Motorola models, the DEP450 uses a common Micro-USB port hidden behind the side accessory cover.