![Arduino UNO not working; Arduino: avrdude: ser_open(): can't open device "\\.\COM4": The system cannot find the file specified. . I haI have also changed the COM Port in windows like the YT Arduino UNO not working; Arduino: avrdude: ser_open(): can't open device "\\.\COM4": The system cannot find the file specified. . I haI have also changed the COM Port in windows like the YT](https://preview.redd.it/arduino-uno-not-working-arduino-avrdude-ser-open-cant-open-v0-jbkolknzb2j91.png?width=493&format=png&auto=webp&s=2e57fe14711ae79b123b0df8c8654f3473935fa0)
Arduino UNO not working; Arduino: avrdude: ser_open(): can't open device "\\.\COM4": The system cannot find the file specified. . I haI have also changed the COM Port in windows like the YT
![cannot use avrdude in command line: com port changed during sketch upload - Avrdude, stk500, Bootloader issues - Arduino Forum cannot use avrdude in command line: com port changed during sketch upload - Avrdude, stk500, Bootloader issues - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/e/a/8/ea85335792995233d8480797095aefd2cb70605e.png)
cannot use avrdude in command line: com port changed during sketch upload - Avrdude, stk500, Bootloader issues - Arduino Forum
![How to open and install AVRDUDE, run its basic commands for usbasp programmer and Arduino cable. - YouTube How to open and install AVRDUDE, run its basic commands for usbasp programmer and Arduino cable. - YouTube](https://i.ytimg.com/vi/D36UDtK-Dpc/maxresdefault.jpg)
How to open and install AVRDUDE, run its basic commands for usbasp programmer and Arduino cable. - YouTube
PICKit 2: MSVC build of avrdude Windows binary does not work · Issue #1006 · avrdudes/avrdude · GitHub
![Arduino UNO not working; Arduino: avrdude: ser_open(): can't open device "\\.\COM4": The system cannot find the file specified. . I haI have also changed the COM Port in windows like the YT tutorial suggests but that doesn't work either. Have i ruined the ... Arduino UNO not working; Arduino: avrdude: ser_open(): can't open device "\\.\COM4": The system cannot find the file specified. . I haI have also changed the COM Port in windows like the YT tutorial suggests but that doesn't work either. Have i ruined the ...](https://i.redd.it/arduino-uno-not-working-arduino-avrdude-ser-open-cant-open-v0-lpr1a6rub2j91.png?width=490&format=png&auto=webp&s=2e2c2049364bae950197b9c4a210cb091fd786dd)
Arduino UNO not working; Arduino: avrdude: ser_open(): can't open device "\\.\COM4": The system cannot find the file specified. . I haI have also changed the COM Port in windows like the YT tutorial suggests but that doesn't work either. Have i ruined the ...
![AVRdude GUI Download: An intuitive GUI for the Avrdude console application that enables you to easily flash the memory of an AVR microcontroller and program it AVRdude GUI Download: An intuitive GUI for the Avrdude console application that enables you to easily flash the memory of an AVR microcontroller and program it](https://windows-cdn.softpedia.com/screenshots/AVRdude-GUI_1.png)
AVRdude GUI Download: An intuitive GUI for the Avrdude console application that enables you to easily flash the memory of an AVR microcontroller and program it
![Win 11 avrdude: ser_open(): can't set com-state for "\\.\COM4" - Avrdude, stk500, Bootloader issues - Arduino Forum Win 11 avrdude: ser_open(): can't set com-state for "\\.\COM4" - Avrdude, stk500, Bootloader issues - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/8/a/a/8aae3f85a220fe2a368892a3ebf0d19df20e199f.png)