ser_open() : can't set com-state for « \\.\COM4 changes Uno not detected SOLVED - IDE 1.x - Arduino Forum
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![Discuss] Arduboy Quick Start Guide - Discussion - Arduboy](https://global.discourse-cdn.com/standard14/uploads/arduboy/original/2X/7/750a1f08baf8aaace0902cf9645b64ebb2e3664e.png "Discuss] Arduboy Quick Start Guide - Discussion - Arduboy")
Discuss] Arduboy Quick Start Guide - Discussion - Arduboy
Avrdude: ser_open(): can't set com-state for "\\.\COM3" - Uncategorized - Arduino Forum
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arduino uno - avrdude ser_open() can't set com-state - Arduino Stack Exchange
Arduino Nano - "avrdude: ser_open():system can't open device "\\.\COM1": the system cannot find the file specified" - Stack Overflow
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Uploading error: Error:avrdude: ser_open(): can't set com-state for "\\.\COM3" - IDE 1.x - Arduino Forum
Arduino Error - avrdude, can't open device ttyACM0, permission denied - YouTube
![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
issue with "can't set com state" : r/arduino
![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_w07/1443216/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
I'm having the (Uploading error: Error:avrdude: ser_open(): can't set com-state) problem with my cinese Arduino nano
