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!
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.