Xiaomi Aquara – Hub Blocked – Home Assistant Intergration

I was recently given a Xiaomi Aquara hub from a friend as it was “bricked” due to port “9898” which is used for the API being blocked in a certain firmware release. This meant that the ”
https://www.home-assistant.io/integrations/xiaomi_aqara ” module is unable to communicate with the hub and homeassistant

To get around this problem you can connect and solder a jumper cable to the RX, TX and GND pins on the board, this requires taking the hub apart and doing the following.

  • Solder RX,TX,GND to the pins below.
  • Connect USB TTL adaptor
  • Open Putty
  • Select correct COM port that the USB TTL adaptor is connected
  • Change Baud rate to 115200

*Make sure you connect the correct pins to the USB TTL*

You should now start seeing message in the terminal as below from the serial connection.

Send the below commands, this will allow the port to be opened.

sm-set network.open_pf 3
psm-get network.open_pf 

Power Cycle the gateway.

To Ensure the port has been successfully opened run the below command in Nmap.

 nmap -sU -p 9898
Starting Nmap 7.40 ( https://nmap.org ) at 2019-11-19 16:48 GMT Standard Time
Nmap scan report for
Host is up (0.0025s latency).
9898/udp open  monkeycom
MAC Address: 78:11:DC:FA:B8:BF (Unknown)
Nmap done: 1 IP address (1 host up) scanned in 7.05 seconds

Port “9898” has been sucesfully opened we can now add the hub to Homeassistant.

  discovery_retry: 5
    - key: xxxxxxxxxxxxxxxx

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