If you are building a custom laser system or upgrading an old one, you can purchase an official EZCAD3 controller and software package directly from Beijing JCZ Technology or an authorized distributor. The software will be provided to you alongside the hardware purchase.
| Problem | Solution | |---------|----------| | Dongle not detected | Reinstall driver; try different USB port; disable USB selective suspend in power options. | | “Hardware key not found” | Ensure dongle is plugged in before launching software. | | Demo mode after having dongle | Dongle may be for EZCAD2 (not compatible). Contact vendor. | | License file invalid | Confirm the .lic matches your computer’s hardware ID. Regenerate with vendor. | ezcad3 license key link
This security key is usually a red or green USB device included with your machine. The Serial Number: Printed on the security key. If you are building a custom laser system
Once you have your serial number, you activate it through the found in your EZCAD3 installation folder. Online Activation : Plug in the red dongle. Open the License Manager and click Activate . Select Online activation via the internet . Enter your software activation string and click OK. Offline Activation : | | “Hardware key not found” | Ensure