Shelly H&T not waking up and not updating app

Dear all,

I purchased a combo made of a Shelly 1 and Shelly H&T to handle the heating on the farthest (and coldest) room in my house and i achieved the result! very good products indeed.

BUT.

yeah, there's a but; until a few days ago, the HT updated the app at every variation of temperature or humidity according to the threshold, so i had a very good report and graphs showing the trend in the room. Now, since i think three or four days, not anymore. The HT works fine (all the scenes works as expected) but the temperature and humidity are "frozen": the app shows the last values, no matter if temperature or humidity changed.

I'll explain with an example: i set a scenery to turn on the shelly 1 when the temperature detected by the HT is lower than 21°C and turn it off when is higher than 22°C. Let's say a week ago, the app showed 20.6°C with the shelly 1 ON, then after 3 hours 22.6°C with the shelly 1 OFF. So far, so good. Moreover, i was able to monitor the rising of the temperature in "real time" (that is, at every variation of 0.5° the HT sent the updated value to the app).

Now, in a same scenario, i see that the shelly 1 is turned ON with a reading in the app of 22°C; i pressed the button on the HT and the app showed the real value, 20.3°C.

If i connect to the HT as an access point (shelly network), the temperature changes in "real time".

So I do not understand if the HT doesn't wake up anymore automatically when the threshold is passed (the sceneries work!) or if it's the app...

Can you help me, please?

Thank you and keep it up with the good work!

Hi 66er , thank you for you answer and for the welcome!

I performed the update as requested by the app... the current FW on the shelly HT is 20201124-091711/v1.9.0

Can you please link me to the procedure to downgrade?

thank you!

And it worked! going back to version 1.8 restored the original behavior; now i can correctly track the trend in the room.

Thank you 66er and SebMai .

Just one note: the link for the FW archive doesn't explain the procedure to downgrade the firmware (or does it just in german, sorry i can't read it); please take it as a suggestion but if you are not a maker/nerd like me it's quite hard to understand that:

- you have to be in the same 2.4 GHz network of the Shelly HT (and the info tha the shellys work nly under a 2.5GHz network was originally found on Facebook, not the leaflet!)

- you have to manually wakeup the shelly HT to connect it (first trial wasn't successful due to lack of response by the HT)

- download the file and let the procedure do its things.

If i may suggest, wirte some notes for the normal users to eplain the passages.

Anyway, thank you again and keep it up with the good work!