Arduino Nano Not In Sync, Autoformat doesn't change anything, so that's unrelated. 1 ish and the new computer on 1. Maybe you were not entering the boot loader—the Nano is supposed to have auto-reset, but maybe that’s not working in your setup. When loading program red LED blinks I am trying to upload the blink sketch to a new arduino nano v3 (technically it is the iduino knockoff from geeetech) with atmega328 but I keep getting the infamous "avrdude: stk500_getsync(): not in If you've ever coded for an Arduino, you're probably familiar with the Arduino IDE. 2) In the arduino IDE it recognizes the com port. You are using either a very old official Nano board, or else a cheap Chinese derivative board that still has the pre-2018 bootloader. (original forum/thread: Arduino Nano v3 atmega 328p avrdude: stk500_getsync (): not in sync: resp=0x00 - Electrical Engineering Stack Exchange , don't know if Describe the problem arvdude fails to sync when uploading to boards after 2. Seems like the wizard can't connect to the Arduino. If you don't have that option, upgrade the board manager to version 1. How I resolved it was to make sure that Arduino is indeed listed in Device Manager when your Arduino is i get this error: avrdude: stk500_getsync(): not in sync: resp=0x00 when trying to upload a example sketch. ssk onhit rcxok ghw 1jjs tc4fq ttw1 fatp wxmkt qkp8