The docs at http://www.espruino.com/Troubleshooting say to download drivers from http://www.st.com/web/en/catalog/tools/PF257938
I did, but the zip file contains installer apps that fail to run in windows 10
FWIW when I plug in the Pico while holding the reset button per the instructions, I get alternating green/red for a couple seconds, then solid green and red. Device manager reports a USB serial device on com8 with "this device cannot start" status, and an "STM32 Virtual ComPort in FS Mode" under Other devices, but with "There are no compatible drivers for this device." status.
Hi, you shouldn't need any drivers on Windows 10. The boards should just plug in and start working right away (I'll update the troubleshooting guide).
Having said that, I just tried an older Espruino Pico and it does exactly as you say. All looks fine and then both LEDs turn on and windows reports an error. Newer Espruino Picos work fine, as does Espruino WiFi.
Does the Pico work ok for you when it's not in Bootloader mode? It looks like something in Windows 10 has been updated which means it has trouble with the older bootloader, although new firmware works fine.
There are a few solutions I think:
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