Hi, I am trying to upload the program to my Arduino board and getting the following message "Programmer is not responding" and "not in sync resp=0x31" Board: Arduino Nano, port COM5 Processor: ATmega328P OS: Windows 10 I tried all the steps mentioned in the troubleshooting forum such as reset. …

Unable to upload program

sterretje May 20, 2018, 11:22am 3

If your IDE offers a "Nano (old bootloader)" option in the boards selection, try that.

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