Xiaomi Mijia Smart Sterilization Humidifier (SCK0A45) error - DEBUG:miio.protocol:Unable to decrypt, returning raw bytes: b''

[cayco]

I'm trying to connect with Xiaomi Mijia Smart Sterilization Humidifier (SCK0A45).

~/miio  .env/bin/miiocli -d airhumidifiermjjsq --ip 10.0.0.74 --token cd2be39bd7274dfd36d7051cba9a5650 info
INFO:miio.cli:Debug mode active
DEBUG:miio.protocol:Unable to decrypt, returning raw bytes: b''
DEBUG:miio.device:Got a response: Container:
    data = Container:
        data = b'' (total 0)
        value = b'' (total 0)
        offset1 = 32
        offset2 = 32
        length = 0
    header = Container:
        data = b'!1\x00 \x00\x00\x00\x00\x10\\/^\x00\x00\x12\x81' (total 16)
        value = Container:
            length = 32
            unknown = 0
            device_id = unhexlify('105c2f5e')
            ts = 1970-01-01 01:18:57
        offset1 = 0
        offset2 = 16
        length = 16
    checksum = b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff' (total 16)
DEBUG:miio.device:Discovered 105c2f5e with ts: 1970-01-01 01:18:57, token: b'ffffffffffffffffffffffffffffffff'
DEBUG:miio.device:10.0.0.74:54321 >>: {'id': 1, 'method': 'miIO.info', 'params': []}
DEBUG:miio.device:Retrying with incremented id, retries left: 3
DEBUG:miio.protocol:Unable to decrypt, returning raw bytes: b''
DEBUG:miio.device:Got a response: Container:
    data = Container:
        data = b'' (total 0)
        value = b'' (total 0)
        offset1 = 32
        offset2 = 32
        length = 0
    header = Container:
        data = b'!1\x00 \x00\x00\x00\x00\x10\\/^\x00\x00\x12\x87' (total 16)
        value = Container:
            length = 32
            unknown = 0
            device_id = unhexlify('105c2f5e')
            ts = 1970-01-01 01:19:03
        offset1 = 0
        offset2 = 16
        length = 16
    checksum = b'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff' (total 16)
...

In order to retrieve the token I used 2 methods, both returning the same results:

• old Android app
• ios backup retrieve: https://github.com/mediter/miio/blob/master/docs/ios-token-without-reset.md

I used token for the Xiaomi hub and also the one for the humidifier. I was able to communicate with a vacuum cleaner but not with the Humidifier.

I've seen report that it worked for. some device but several weeks ago stopped: #635

[rytilahti]

The raw bytes warning is normal for the handshake message, but I'd guess that that device is not using the miio protocol (as it's not answering to the info query). If you want to investigate how it communicates, this page gives some guidance on how to do that: https://github.com/aholstenson/miio/blob/master/docs/protocol.md

[rezmus]

afaik it's deerma.humidifier.mjjsq and should be supported.

[rytilahti]

Thanks for the info, @rezmus!

@cayco try miiocli airhumidifiermjjsq info (and other commands), and report back if it is not working as expected!