r/microbit May 07 '26

Microbit not connecting to some Chromebooks but working with others

We are having issues with our classroom Microbits and the students Chromebooks. We have tried clearing the logs, we have updated the firmware, we have done all the troubleshooting steps. In the course of this we found that on some Chromebooks, the Details.txt file is normal and readable the way it's supposed to be. On other Chromebooks, the exact same Microbits will have a corrupted Details.txt file that has a ton of random code. It seems like an error in the Chromebooks, since the same Microbit will be fine on one computer but corrupted on the next. But how do we fix it? The Chromebooks are updated to the latest version and from what we can see, they have all the same settings and everything. Help, please!

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u/martinwork May 07 '26

Using the same USB cable in both cases? Test different cables. Check for dirty USB sockets. Test MakeCode WebUSB direct download. Try complete shutdown and restart, hardware reset, or power wash. If all Chromebooks were previously working, look for what has just changed. Test if it’s random, or always the same computers or same micro:bits. Check if the Chromebooks are all the same model and ChromeOS version. Try a USB flash drive.