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  • Solution: avrdude stk500_getsync(): not in sync resp=0x30 error for Arduino

    I am using ch340 usb converter to program arduino pro mini. com port is recognized but I get the same error on program upload. I have set the baud rate of com port also to 57600 that arduino expects. Here is the console output:Using Port : COM4Using Programmer : arduinoOverriding Baud Rate : 57600avrdude: stk500_recv(): programmer is not respondingavrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x0eI have installed the driver for ch340, arduino version is 1.6.11 and os is windows 10. led on arduino pro mini board blinks (maybe due to a pre-installed program). None of the solutions seem to work. Any help would be great.

    For me the problem was DTR pin. CH340 usb converter didn't have dtr pin. Pressing and holding the reset button on pro mini before compiling and releasing it just when uploading starts in arduino did the trick.

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