Arduino Nano Code Upload Error avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00

Easy way to fix code upload error for Arduino Nano

How to Fix the Error Message while uploading code to Arduino Nano Boards?

It's cool to make your own PCBs for your DIY Project right? It's Super Easy! 😎

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00
An error occurred while uploading the sketch

First I thought there was something wrong with the Nano board I was using. But when I tried to upload the code to the one that was working, I got the same error. I tried to reinstall Arduino IDE, removed and added all the boards and even tried to manually install the drivers.

How to Fix An error occurred while uploading the sketch?
Well guys, the solution was simple. In the newer versions of Arduino IDE, you have to select Old Bootloader before uploading codes to newer boards.

This is how you do it.
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[clementbilly-paul]

I actually had to like an comment on this video. What a simple fix. I literally spent a lot of data and time, as well as a whole week tryna just fix this problem. God bless you brother.

[DavidGrayOK]

Four years since posting and you are still saving people!

[oleksandrc.]

I was stuck up in there for an hour, but hadn't tried to use old bootloader
Suprisingly that worked
Thank you a lot

[ARCANEmateCLAN]

Unfortunately it did not work, the same error persists.

[justsomepotato]

there isn't a processor option anymore,
what should i do

[mancelprince]

I had a minor update to a sketch that I uploaded about a year ago and I had not used the Arduino IDE on this computer in several months. Everything worked last year with everything the same, so I thought. Evidently the IDE got updated without me remembering and I kept getting this error when I tried to upload my revised sketch. I knew nothing about "old bootloader" and I would still be looking for the answer if it were not for you. Thank you for taking the time to post this video. There is no telling how long I would have been down because of this problem.


I see that 6 people gave you a thumbs down. Don't let that bother you. Those 6 people don't appreciate someone like you who is trying to help other people with their knowledge.

[redcraft-hd]

After half an hour of troubleshooting, I stumbled upon this video and fixed it in two minutes. Thanks a lot!

[TechnicalLee]

The old bootloader option isn't there anymore. What do we do now?

[nk-computertraining]

For Arduino pro mini too: If you don't see "old bootloader" select 3.3V 8 MHZ and after uploading done you can now switch to your version and upload your code it will work fine.

[benitoalappat]

man my baord is still show the problem but its a arduino uno
what should i do

[carameldonut]

OMG, THAT was the solution?! I spent an entire evening on it, thank you so much for this

[mansoorahmad]

hi bro i have an arduino uno and the ide is the latest 2.1 i think so that i cant fix this issue could u plz help me
thanks in advanced

[paullancaster]

Thanks so much, I had tried two PC's, two nano, different cables, head was starting to hurt from banging it against a wall.

[plusign]

Fixed it for me too, thank you for taking the time to post this!

[juhapylkkonen]

Why this video is the sixth in the search result?🤔 This was the only one that solved my problem. Thank you!!

[kshitijkolhe]

Not working for me, any other solution do you have? I also have tried everything, from reinstalling drivers and IDE. Please help.

[Gribouille]

Merci beaucoup. Je n'avais pas pensé à utiliser le "old bootloader". Bravo !

[RandomlySelectedUserName]

i was about to yeet my arduino from the window. your tutorial helped the issue. thanks alot, saved my time <3

[edwinandrews]

dude you are a life saver
thank you soo much for this video '
other youtubers make lengthy videos and do not give the correct solution
but hats off bro '
thank you soo much once again

[kcebnivek]

This video helped, but in my instance I needed to use the ATmega168 instead of either of the ATmega328P bootloaders. Weird, I know. Anyway, I'm writing this in case anyone else has the same problem and doesn't think to try the ATmega168 bootloader.