avrdude: ser_open(): can't open device "\\.\com3": - IDE 1.x - Arduino Forum
avrdude: ser_open(): can't open device | Arduino FAQs
Anycubic Mega Zero 2.0 marlin flashing / AVRDUDESS help : r/anycubic
avrdude: ser_open(): can't open device "\\.\com3": - IDE 1.x - Arduino Forum
18.04 - Uploading code to arduino gives me the error: "avrdude: ser_open(): can't open device "/dev/ttyACM0": Permission denied" - Ask Ubuntu
Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow
avrdude: ser_open(): can't open device "\\.\COM7": Access denied. - IDE 1.x - Arduino Forum
Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow
Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.
Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow
Trouble flashing marlin to ramps 1.4 - Software / Firmware - V1 Engineering Forum
avrdude: ser_open(): can't open device "\\.\COM4": Access is denied. · Issue #525 · platformio/platformio-core · GitHub
avrdude: ser_open(): can't open device "\\.\COM9": Access is denied. - Avrdude, stk500, Bootloader issues - Arduino Forum
avrdude: ser_open(): can't open device "unknown": No such file or directory - Installation & Troubleshooting - Arduino Forum
ser_open(): can't open device.COM1 | Arduino error solved
avrdude: ser_open(): can't open device "\\.\COM5": access denied. - IDE 1.x - Arduino Forum
Arduino Tutorial - Lesson 1 - Let there be blink!
Solution: Avrdude Stk500_getsync(): Not in Sync Resp=0x30 Error for Arduino - Instructables
![Solved: Arduino - avrdude: ser_open(): can't open device "\\.\COM3": The system cannot find the file specified. | Experts Exchange](https://filedb.experts-exchange.com/incoming/2020/02_w07/1443217/new-1.png "Solved: Arduino - avrdude: ser_open(): can't open device "\\.\COM3": The system cannot find the file specified. | Experts Exchange")
Solved: Arduino - avrdude: ser_open(): can't open device "\\.\COM3": The system cannot find the file specified. | Experts Exchange
Arduino Error - avrdude, can't open device ttyACM0, permission denied - YouTube
Solution: avrdude: ser_open (): can't open device on Arduino - Ikkaro
avr - ATMEL STUDIO: avrdude.exe: ser_open(): can't open device - Electrical Engineering Stack Exchange
Can't open device "\\.\COM4": Access is denied error when uploading a sketch from Arduino IDE | I learned it. I share it.
#36 Fix Arduino Bug ser_open(): can't open device On OSX - YouTube
