Can't connect to Gardena Sileno minimo 250/500

[PlamenVasilev]

I have two Gardena Sileno mowers. 250 and 500.
My Home assistant show me that I can connect, but I can't.
I have tried to connect using this python library directly outside HA.

When I try to discover the devices I see them

Plamens-MacBook-Pro:automower_ble hackman$ python3 ../ble_scanner.py 
Scanning for 15.0 seconds, please wait...
Husqvarna device(s) found!

        Address: 13DF7522-4155-CA7A-D2AA-DADA62593DF8
        Name: Косачка з
        Signal Strength: -95 dBm (closer to 0 is stronger)

        Address: 8C85D3C9-9304-F9D2-5223-6A23C31FEAC7
        Name: SILENO minimo 250
        Signal Strength: -48 dBm (closer to 0 is stronger)

I'm trying to connect by bluetooth MAC without success:

Plamens-MacBook-Pro:automower_ble hackman$ python3 ./mower.py --address FC:A8:9B:16:16:BA
Unable to connect to device address: FC:A8:9B:16:16:BA
Please make sure the device address is correct, the device is powered on and nearby

Than I'm trying using the discovered address:

Plamens-MacBook-Pro:automower_ble hackman$ python3 ./mower.py --address 8C85D3C9-9304-F9D2-5223-6A23C31FEAC7
2026-05-04 11:13:34,721 automower_ble.protocol INFO: starting scan...
2026-05-04 11:13:34,721 automower_ble.protocol INFO: connecting to device...
2026-05-04 11:13:35,094 automower_ble.protocol INFO: connected
2026-05-04 11:13:35,094 automower_ble.protocol INFO: pairing device...
Traceback (most recent call last):
  File "/Users/hackman/PycharmProjects/AutoMower-BLE/automower_ble/./mower.py", line 331, in <module>
    asyncio.run(main(mower))
    ~~~~~~~~~~~^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/asyncio/runners.py", line 195, in run
    return runner.run(main)
           ~~~~~~~~~~^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/asyncio/runners.py", line 118, in run
    return self._loop.run_until_complete(task)
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/asyncio/base_events.py", line 725, in run_until_complete
    return future.result()
           ~~~~~~~~~~~~~^^
  File "/Users/hackman/PycharmProjects/AutoMower-BLE/automower_ble/./mower.py", line 208, in main
    await mower.connect(device)
  File "/Users/hackman/PycharmProjects/AutoMower-BLE/automower_ble/./mower.py", line 42, in connect
    status = await super().connect(device)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/site-packages/automower_ble/protocol.py", line 398, in connect
    await self.client.pair()
  File "/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/site-packages/bleak/__init__.py", line 682, in pair
    await self._backend.pair(*args, **kwargs)
  File "/Library/Frameworks/Python.framework/Versions/3.13/lib/python3.13/site-packages/bleak/backends/corebluetooth/client.py", line 205, in pair
    raise NotImplementedError("Pairing is not available in Core Bluetooth.")
NotImplementedError: Pairing is not available in Core Bluetooth.

I have tried to connect multiple ways. At the end I have removed the mower from Gardena app and reboot the mower.
I see the mower pending pairing in the app, but I get error trying to connect. NotImplementedError: Pairing is not available in Core Bluetooth.

Am I doing something wrong or Sileno Minimo is not supported?
Can I help somehow with debugging the issue?

[alistair23]

Are you using MacOS? Seems like a platform issue according to https://bleak.readthedocs.io/en/latest/backends/macos.html#bleak.backends.corebluetooth.client.BleakClientCoreBluetooth.pair

[PlamenVasilev]

Yes, I',m on MAC. I see that the MAC OS is the problem, so I have tried to pair directly from HA OS
I logged in into HA using SSH and checkout the project.
I'm seeing the mower

➜  automower_ble git:(main) python3 ../ble_scanner.py 
Scanning for 15.0 seconds, please wait...
Husqvarna device(s) found!

        Address: 90:7B:C6:5C:39:EA
        Name: SILENO minimo 250
        Signal Strength: -60 dBm (closer to 0 is stronger)

        Address: FC:A8:9B:16:16:BA
        Name: Косачка за
        Signal Strength: -80 dBm (closer to 0 is stronger)

But I'm still unable to pair.

What I did.

1. I move the mower inside next to the HA ~ 1m from it.
2. I setup the ping to be "power on/off" 4 times
3. put in pair mode by doing power off, wait, power on
4. try to connect using python3 mower.py --address 90:7B:C6:5C:39:EA --pin 0000 trying 0000, 1111, 2222 and etc to 9999
5. factory reset the mower from the app
6. make sure that I can see the mower in the app when I add new product and I see "ready to pair" the mower
7. try to connect using python3 mower.py --address 90:7B:C6:5C:39:EA --pin 0000 trying 0000, 1111, 2222 and etc to 9999
   Any ideas ?

[alistair23]

Can you provide logs

[PlamenVasilev]

Yes. I have sent you an email with the log file