Yet Another Newbie Question - Factory Reset of Sinilink USB Switch?

[whitedavidp]

I purchased one of these USB switches. I managed to flash Tasmota 14.x onto it and get it connected to a router wifi via the AP mode. It all worked!

Being unable to leave well enough alone, I started fiddling around. From the web UI, I had Tasmota do a factory reset on the unit. While I was again setting things up, I put in an incorrect wifi password to the router.

Originally, I assumed that after x failed attempts, the unit would go into AP mode but it has not. It just keeps trying to connect again and again without success.

So I need to factory reset the thing and start again. I tried various ways of using the on-device button combined with power on/off to the unit. Nothing seems to get a reset going. And I cannot manage to get into AP mode. Is there some way, short of re-flashing to accomplish this?

Thanks