Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.
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avrdude: ser_open(): can't open device "\\.\COM5": access denied. - Installation & Troubleshooting - Arduino Forum
Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.
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can't open device "\\.\COM5": The system cannot find the file specified problem - Interfacing w/ Software on the Computer - Arduino Forum
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SerialException: could not open port 'COM3' WindowsError(5, 'Access is denied') — Forum
Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.
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ESP32 & could not open port 'COM5': PermissionError(13, 'Access is denied.', None, 5) - espressif32 - PlatformIO Community
Arduino: avrdude: ser_open(): can't open device “\\.\COM3”: Access is denied. – jormc.es
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Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow
Arduino IDE error: ser_open(): can't open device "/dev/ttyACM0": Permission denied - YouTube
