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Seeing the Arduino upload error? Fix it easily in 8 steps
4 min. read
Updated onOctober 4, 2023
updated onOctober 4, 2023
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Key notes
AnArduinois asingle-boardmicrocontroller (or mini-computer) users can connect with Windows PCs. When connected, users can develop and upload programs to theirArduinoswith theArduino IDE software. Then users can run the uploaded programs.
However, users can’t always upload programs whenArduinoupload errors arise. When you can’t upload a program, theArduinoIDE software might display aProblem uploading to boarderror message. There are various potential fixes forArduinoupload errors.
How do I fix Arduino upload errors?
1. Check you’ve selected the right board
2. Make sure you’ve selected the port you’re utilizing
3. Uninstall third-party firewall and antivirus software
4. Check that the board’s USB cable is fully plugged in
Make sure yourArduinoboardUSB cableisn’t in any way loose. If the cable is a little loose at the ports, you might need to press it in more.
5. Try connecting the board with an alternative USB cable
USB cables that don’t allow serial communications will not connectArduinoboards. For example, some USB cables are just for charging devices. So, some users might need to change their USB cables to fix sketch upload errors. Your best bet is to get a USB cable from theArduino website.
6. Unplug all board pins
Some users have confirmed they’ve fixedArduinoupload errors by unplugging all board pins. So, remove any pins you have connected to your board. Then try uploading with those pins removed. You can insert the pins again after uploading them.
7. Install drivers for your Arduino board
8. Reset the Arduino board
Finally, try resetting theArduinoboard. To do so, press the red button beside the board’s USB port when its connected with PC. The yellow LED light on the board should blink.
If the board doesn’t reset, you might need to burn the bootloader to it. TheBootloader pageon theArduinowebsite provides further details for how users can do that.
These are some of the ways that you can fix variousArduinoupload errors with. Users who have fixedArduinoupload errors with alternative resolutions are welcome to share their fixes in the comments section below.
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Matthew Adams
Windows Hardware Expert
Matthew is a freelancer who has produced a variety of articles on various topics related to technology. His main focus is the Windows OS and all the things surrounding it.
He is passionate about the tech world, always staying up-to-date with the latest and greatest. With an analytical view, he likes problem-solving, focusing on errors and their causes.
In his free time, he likes to read and write about history and tries to always develop new skills.
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Matthew Adams
Windows Hardware Expert
He is passionate about everything surrounding Microsoft’s OS, focusing on troubleshooting guides & tips for everyday problems.
