Heya - I just re-flashed my nice nano v2 controllers on my corne keyboard after about 2 years of no issues, but now I'm getting a "cannot connect to device" when trying to pair to Windows 10.
I did these steps:
1) cleared all the BTE profiles
2) made sure the keyboard is in BTE mode (instead of USB)
3) Reflashed the firmware
4) Checked for driver updates + rebooted the pc
5) Tried to pair to an iOS device (which worked)
6) Moved the keyboard close to the computer antenna
I did have to rebuild the firmware, so it's not the exact copy that I have been using for the past couple years. However, it is the same config.
What other troubleshooting should I do? Thank you!