ERROR: avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x4c

Official Hardware Nano Family Nano 33 IoT
1

I have recently bought an Arduino Nano 33 IoT

I haven't got it working at all yet. I have followed the installation guide and definitely downloaded correct drivers etc. Every time I trying uploading the simple blink example I get this error:

Can someone please help me? I have seen similar issues on other forums for the Arduino Nano and the solution seems to be to use the ATMega328P (old bootloader) however that is not working for me.

I have tried everything I can think of, it is definitely a problem with the Nano as when I switch back to my UNO it works perfectly.

avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x4c
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x4c
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x4c
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x4c
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x4c
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x4c
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x4c
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x4c
avrdude: stk500_recv(): programmer is not responding
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x4c
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x4c

2

The problem is that you have the wrong board selected. Despite the similar name, the Arduino Nano 33 IoT is very different from the Arduino Nano. You need to select Tools > Board > Arduino Nano 33 IoT.

If you don't have an "Arduino Nano 33 IoT" board in your Tools > Board menu, it means you haven't installed the Arduino SAMD Boards platform yet. You can install it by following these instructions:

  • Tools > Board > Boards Manager
  • Wait for the download to finish.
  • From the list of available platforms, click on "Arduino SAMD (32-bits ARM Cortex-M0+) Boards".
  • Click the "Install" button.
  • Wait for the installation to finish.
  • Click the "Close" button.
  • Tools > Board > Arduino Nano 33 IoT
  • Try uploading again.
3

Such a silly mistake from me! It's working now. Thank you very much :slight_smile:

4

You're welcome. I'm glad to hear it's working now. Enjoy!
Per