THB3 sold as THB1 - you can try different firmwares

[toomaskordemets]

I ordered few THB1-s from Aliexpress, then found the way they are is not ideal for home assistant. Then found this great work, I really appreciate it!
I actually want to announce that while they were sold as THB1-s (it's even said explicitly on the box they came in), they did not work with THB1 firmware. No screen, no temp and humidity reading, only bluetooth. But when I tried THB3 firmware everything started working. So it seems there is a mess or not so clear boundaries with labeling and actual hardware used. When your gadget goes dark after flashing, try other firmware.
PS Also the pads on PCB are super fragile, so easy to break them loose!

[pvvx]

I don't make these thermometers. The Chinese collect them from whatever they can find...

[toomaskordemets]

Yes, of course. The purpose of my post was to encourage people who try to flash their gadgets and end up having them blank, so they can try different firmwares and get it working.