The flow takes the gateway MQTT and spits out something for your own broker (can format to suit your needs). For HA, I just add MQTT platform sensors:
If you need more info on how to process the non-mi data, check the debug nodes for the payload info as this is what you need to have exposed to your own broker for HA .
Hello, I have the same problem. Did you find a solution ?
Thanks
@serrj-sv The link to the modified apk ask for a username and password 
Does any one know of an alternative?
The password is 3402847392 with no username require
You can also link to the download page directly without a password if you visit the author’s website here, might need google translate or something similar if you can’t read Russian.
Many thanks!
Hi, I don’t have access to device right now, so I’ll try to guide you by memory.
You need to assemble 2 micro switch buttons:
Switch [1] will reboot device every time you press it.
Switch [2] will interrupt communication between flash chip and CPU
Connect console cable, reboot device. Inspect boot messages, make yourself familiar with boot process. Most probably your device is rebooting constantly.
At some point you should see message like “checking kernel 1” or something like that. Immediately, once you see this message start clicking repeatedly button [2]. check will fail and it will start “checking kernel 2”: continue clicking. When it fails second time boot process will be interrupted and you will see bootloader prompt. From there you need to ENABLE rootfs check (I don’t remember exact command, just check all commands with “?” or “help”). After this - reboot and gateway should boot now, but you are not done yet.
You booted from backup rootfs, now you need to flash backup of original rootfs to gateway. When done, try to reboot and make sure you booted from primary rootfs. When ready - disable rootfs check using “boot_ctrl” command.
I feel such a noob again…
when I run
nc -l -p 2222 | dd of=mtd0(1,2,3...)
I get
syntax error near unexpected token `(’
What Am I missing?
got it, should probably be 
nc -l -p 2222 | dd of=mtd0
and
nc -l -p 2222 | dd of=mtd1
etcetera…
Thanks for your flow. Studied it a bit and found you wrote a function that analyzes codes like 0.1.85 and 8.0.2008 and translates them into a more meaningful something like ‘temperature’ and ‘voltage’.
Is this something you deducted from looking at the numbers or is there a list somewhere of these codes and their meaning?
thanks
I didn’t find any sort of difinitive list so I watched the internal MQTT traffic and compared the logs to what I could see in the app. Temp and Humidity is easy. Battery is more obscured and I’m not 100% sure it’s correct. I just took some samples and interpolated from it to match the homekit values. I found a few hints about what other codes mean, but nothing to suggest they are interesting enough to track.
Hi all. I wrote a custom component for this Gateway.
Great job, I set up the addon but HA doesn’t discover devices, gateway also not visible.
am I doing something wrong?
I thank you in advance
ok, I’ll see if I can find out more codes then. Thanks.
Awesome, works fine !
You need enter Gateway IP address and Mi Home Token as shown at video above.
Component can’t get device list. I don’t know why. Do you have the latest version of HA? And latest version Gateway firmware? Check logs.
HA version 0.114.4
Gateway 1.4.6_0012
If I have not misunderstood the component should automatically activate Telnet or I am wrong.
The component automatically activates Telnet. Check logs.
logger:
default: warning
logs:
custom_components.xiaomi_gateway3: debug