After having worked for a few days, my Xiaomi Temperature and Humidity sensors became unavailable. I figured that it was a Bluetooth issue:
Could not cycle the Bluetooth adapter hci0 [E4:5F:01:80:FF:42]: [Errno 110] Operation timed out
21:19:13 – (WARNING) components/bluetooth/util.py - message first occurred at 21:18:30 and shows up 4 times
Config entry 'E4:5F:01:80:FF:42' for bluetooth integration not ready yet: hci0 (E4:5F:01:80:FF:42): Failed to start Bluetooth: [org.bluez.Error.NotReady] Resource Not Ready; Retrying in background
21:19:00 – (WARNING) config_entries.py - message first occurred at 21:18:35 and shows up 2 times
So, after ssh into HA and using command bluetoothctl I stopped bluetooth, then when I power it on I get the following error:
[CHG] Controller E4:5F:01:80:FF:42 PowerState: off-enabling
Failed to set power on: org.bluez.Error.Failed
[CHG] Controller E4:5F:01:80:FF:42 PowerState: on
hey, thanks for your reply. meanwhile I managed to figure it out. RPI4’s BT died and couldn’t restart, so I bought a BT4 dongle and now all works just fine.