Your computer will now boot into Windows 10 normally, but with the ability to install unsigned drivers until the next restart. Step 2: Connect the EZP2019 Programmer Plug your EZP2019 programmer into a USB port.
Go to the official WCH (Nanjing Qinheng) website or a reputable open-source repository. Look for "CH341SER.EXE" (for serial) and "CH341PAR.EXE" (for parallel/SPI). *Alternatively, download the complete "EZP2019 Software Package" from a trusted forum like or Win-Raid .
Look through the list for your device. It will usually appear under as an Unknown device or EZP2019 with a yellow warning triangle. Step 3: Manually Install the Driver via Device Manager how to install ezp2019 driver windows 10
Plug the EZP2019 programmer into a USB 2.0 port. The "POWER" light should turn on. 2. Disable Driver Signature Enforcement (Crucial Step)
You’re connected. Take note of the COM number (e.g., COM3, COM4), as some older software might require you to select this manually. Your computer will now boot into Windows 10
: Click Next . If prompted that the driver is not licensed, choose to continue the installation anyway. Once finished, the application status should change from "not connect" to "ready" . Troubleshooting: Driver Signature Enforcement
Click . Select Show All Devices (if prompted) and click Next . Look for "CH341SER
| Error Message | Likely Cause | Solution | | :--- | :--- | :--- | | "Device descriptor request failed" | Damaged USB cable or port | Try a different USB port (USB 2.0 preferred over USB 3.0). Use a high-quality cable. | | "Driver is intended for a different platform" | 64-bit driver on 32-bit Windows (or vice versa) | Ensure you downloaded the correct driver version for your Win10 build. | | "Cannot open programmer. Error: Access denied" | Another program is using the COM port | Close all other software (Arduino IDE, Serial monitors). Reboot PC. | | "Error: IC not responding" | Driver works, but voltage issue | The EZP2019 might be in the wrong voltage mode (5V vs 3.3V). Switch to 3.3V for most BIOS chips. | | "Code 10: Device cannot start" | Corrupt driver or power issue | Uninstall device from Device Manager. Disable USB selective suspend in Power Options. Reinstall driver via Method 3. |
Since Windows cannot automatically find this driver online, you must point it directly to the files you downloaded.