mBlock5 App not uploading code


Up until yesterday mBlock5 has been working fine to upload code to my students mbots using the USB cables. Now the app is opening but all of my students are getting a red error message and are not able to upload code. Please help!


Hi TPRobotics,

I use my mBot regularly and have the same problem. Last time I had to wait 1 or 2 days for the download to work again. I just waited.

There is still the local version that works fine, but the version with mLink no longer works.