Hi all,

Hoping someone here can help with my TD21 doorbell as it has suddenly stopped behaving.

It was working fine before (our Wi-Fi is a bit weak, but it still managed). A few days ago it stopped connecting to the Tapo app entirely, and now it keeps running through the same light pattern over and over:

- Flashing red for about 10 seconds

- Solid orange for about 1 second

- Solid red for about 1 second

- Solid white for around 10 seconds

…and then it goes straight back to flashing red and repeats the whole cycle.

I’ve tried every reset option I can think of:

- Letting the battery fully drain

- Charging it to full

- Holding the reset button for 5 seconds

- Holding it for 10 seconds

- Holding it for 20 seconds

None of these do anything. I also can’t get it to connect to the app, so I can’t change any settings or run a proper reset from there.

Does anyone know what the next step is when just holding the reset button doesn't work? I’d really appreciate any guidance.

Thanks!