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What does a Invaid device handle message mean in Ezcad software?

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What does a Invaid device handle message mean in Ezcad software?

When use an EZCAD software sometime we may meet some problem. Today I will teach you how to solve a “ Invaid device handle” message problem.

Solution:

1. Check if installed driver correctly

2. Change a USB port

3. Change a USB cable

4. Measure control card power supply if 5V

You can check which step you can sovle your problem accordingly.

If you still have any questions do not hesitate to contact Guangzhou Focuslaser

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