Troubleshoot if the device isn't being recognized. Verify if a specific chip model is on the supported list.
| Problem | Solution | |--------|----------| | Programmer not detected | Try a different USB port (avoid USB hubs). Replace USB cable. | | “Device cannot start (Code 10)” | Uninstall driver in Device Manager, re-run CH341SER installer. | | Software crashes on open | Run as Administrator. Disable antivirus temporarily. | | Read/Write errors | Check chip voltage (EZP2020 runs at 3.3V – do not connect 5V chips directly). | | Chinese language interface | Find the “English.ini” file in Lang folder, select it in Settings. | ezp2020 programmer software download install
: The software often runs directly from the folder without a formal installation process. Launch the application. Troubleshoot if the device isn't being recognized
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