Can't save and upload -validating license failed

Hi I'm new to Arduino and just trying to set it up for my son to use. We're using a Chrome book running (Version 89.0.4389.95) and just downloaded the Arduino create app. All seems to work fine but when we try to save and upload we get the message "validating license failed OAUTH2 request failed: Service responded with error: Service has been disabled for this account." We're trying to connect to a Arduino uno.
Can anyone give me any pointers. Thanks


Your topic was Moved to it's current location / section as it is more suitable.

A similar topic was also posted and was passed upstairs. I will see if they have an answer yet on Monday for you and the other poster.

Could you take a few moments to Learn and Use The Forum

It will help you get the best out of the forum in the future.

  • Your OS and version can be valuable information, please include it along with extra security you are using. Antivirus etc.

  • Always list the version of the IDE you are using and the board version if applicable.

  • Use quote or add error messages as an attachment NOT a picture.

  • How to insert an image into your post. ( Thanks @sterretje )

  • Add your sketch where applicable but please use CODE TAGS

  • Add a SCHEMATIC were needed even if it is hand drawn

  • Add working links to any specific hardware as needed (NOT links to similar items)

  • Remember that the people trying to help cannot see your problem so give as much information as you can


  • Ensure you have FULLY inserted the USB cables.

  • Check you have a COMMON GROUND where required. ( Thanks @Perry)

  • Where possible use USB 2.0 ports or a USB 2.0 POWERED HUB to rule out USB 3.0 issues.

  • Try other computers where possible.

  • Try other USB leads where possible.

  • You may not have the correct driver installed. CH340/341 or CP2102 or FT232 VCP Drivers - FTDI

  • There may be a problem with the board check or remove your wiring first.

  • Remove any items connected to pins 0 and 1.


  • Close any other serial programs before opening the IDE.

  • Ensure you turn off any additional security / antivirus just to test.

  • There may be a problem with the PC try RESTARTING it.

  • You may be selecting the wrong COM port.

  • Avoid cloud/network based installations where possible OR ensure your Network/Cloud software is RUNNING.

  • Clear your browsers CACHE.

  • Close the IDE before using any other serial programs.

  • Preferably install IDE’s as ADMINISTRATOR or your OS equivalent


  • CH340/341 based clones do not report useful information to the “get board info” button.

  • NANO (Old Types) some require you to use the OLD BOOTLOADER option.

  • NANO (ALL Types) See the specific sections lower in the forum.

  • NANO (NEW Types) Install your board CORE’s.

  • Unless using EXTERNAL PROGRAMMERS please leave the IDE selection at default “AVRISP mkII”.

  • Boards using a MICRO usb connector need a cable that is both DATA and CHARGE. Many are CHARGE ONLY.

CREATE editor install locations.

  • On macOs ~/Applications/ArduinoCreateAgent-1.1/

  • On Linux ~/ArduinoCreateAgent-1.1/config.ini

  • On Windows C:\Users[your user]\AppData\Roaming\ArduinoCreateAgent-1.1

Performing the above actions may help resolve your problem without further help.

Language problem ?

Try a language closer to your native language:

Thanks to all those who helped and added to this list.

Hi finnbob,

Note that there are two versions of Arduino Create, Arduino Create Chrome App for Education and an older version Arduino Create.

The older version is no longer available, so make sure you have downloaded the version named for Education. You can use this even though you are an individual and not a school.

To use the Education version, you currently need a subscription, which is 0.99$ per month. To read more about subscribing to Create Chrome App for Education and installations, visit this tutorial.

If you still face issues using the app, or need help with the subscription, please contact us here:

This topic was automatically closed 120 days after the last reply. New replies are no longer allowed.