Dell Latitude 7400
Ubuntu 20.04.2 (with dual-boot)

After an apt upgrade, my laptop froze.
Then I manually stopped it and rebooted it.

Now when I boot I find a black screen with the follow errors:

[   4.....] Bluetooth: hci0: command 0xfc09 tx timeout

[  12.....] Bluetooth: hci0: Failed to send firmware data (-110)

[  12.....] Bluetooth: hci0: sending frame failed (-19)

I can log in with ctrl+alt+f2 but don't know what to do then ?