Zigbee thermometer calibration don't work

[xstable]

I've initially asked in the HA-Forum, but they told me to better ask here:
https://community.home-assistant.io/t/changing-sensor-calibration-doesnt-have-any-effect/603928

I have two zigbee Temperature devices. I'd tried to calibrate them, but the changes don't take any effect.

Devices: TH02Z & ZTH02

As you see in the image, this device shows 93,53% as it should show 98%.
So I set the humidity_calibration to 5 (93+5=98), but it has no effect at all. Even not after 15 Minutes.

Why does this don’t work. I also tried a fast-refresh of all HA settings, and a reboot of zigbee2mqtt.

[Koenkk]

Can you make a screen shot of the "Uber" tab?

[xstable]

Here, for both of my devices.

[Koenkk]

and the content of devices.yaml?

[xstable]

'0x0c4314fffe65c1a0':
  friendly_name: Kinderzimmer (Heizung)
'0x00178801081e8820':
  friendly_name: Büro Lampe (HUE)
  transition: 0
'0xa4c138c01a7b9594':
  friendly_name: '0xa4c138c01a7b9594'
'0x804b50fffe3f32b8':
  friendly_name: Küche (rechts)
'0x804b50fffe3f3ae2':
  friendly_name: Küche (links)
'0xa4c138cd51f29411':
  friendly_name: '18_1'
'0xa4c13842b38af486':
  friendly_name: Büro Lichtschalter
'0xa4c138444fc811d5':
  friendly_name: '12_1'
'0x0c4314fffe5c4900':
  friendly_name: Wohnzimmer (Heizung)
'0x0c4314fffe65c186':
  friendly_name: Küche (Heizung)
'0xa4c13854257e24be':
  friendly_name: Steckdose_kwh_01
  description: Steckdose mit Leistungsmessung
'0xa4c138ae155c9fd1':
  friendly_name: Steckdose_kwh_2
  description: Steckdose mit Leistungsmessung
'0xa4c1381903bcc7e6':
  friendly_name: '0xa4c1381903bcc7e6'
'0xa4c138380db81713':
  friendly_name: Wohnzimmer Wandlampen
  description: Wohnzimmer Wandlampen
'0xdc8e95fffea03e8a':
  friendly_name: 4er Schalter (No. 1)
  description: Wohnzimmer
'0xdc8e95fffe58cd13':
  friendly_name: 4er Schalter (No. 2)
'0xa4c138311d33a4d9':
  friendly_name: TemparaturSensor 1
  humidity_precision: 1
  humidity_calibration: 4.74
'0xa4c1385e9dcf078f':
  friendly_name: Temparatursensor 2 (rund)
  humidity_calibration: 1
'0xa4c138449ddf9943':
  friendly_name: FensterSensor 1
'0xa4c1388291e11c5b':
  friendly_name: Wasser-Sensor

[Koenkk]

'0xa4c1385e9dcf078f':
  friendly_name: Temparatursensor 2 (rund)
  humidity_calibration: 1

I see the calibration is only 1 here, if you stop z2m, change it to 5 and start z2m does it work?

[xstable]

No, might be, that it's only caused of trying something. As you see the TemparaturSensor 1 has a humidity_calibration of 4.74, and also don't work.

[xstable]

Oh wait, for Temparatursensor2 it seems to work...
I've changed it to correction of 15, and it shows now 72%. :)

I've changed Temparatursensor1 from 4,75 to 14,75.
It seems only that it takes a bunch of time (more than 1 hour at least) it is was set?!?
I've expected, that setting it, and reload the whole config would do the job. But it takes way longer.
So it seems to be fixed.
Thanks for your helping hands and attention.

[stefanvogel]

I have a similar problem and according to the screenshots above we are using the very same (cheap) Zigbee device from AliExpress.

First of all I would like to understand where I can find devices.yaml. I don't have such a file, but I do have /homeassistant/zigbee2mqtt/configuration.yaml which kind of has the devices in it's own section. The values there seem to reflect what I have set in the UI. But they are not applied to the actual sensor data yet (even after waiting 30 minutes and more; restart of HA etc.).

I'm also confused that calibration can be done in the UI in "Details" (with a nice slider), but they don't end up in configuration.yaml, but apparently in state.yaml (same folder), but don't have an effect apparently. Only the ones in "Settings (specific)" end up in configuration.yaml.