Sonoff ZBMINI does

Hi all,

I have bought 4 Sonoff ZBMINI Smart Switches recently and am trying to get them to talk to Homey.

When I plug them in, the green LED flashes. The instructions in the “Sonoff Zigbee” app for connecting ZBMINI say, to press the button 8 seconds till the LED is flashing.
The Sonoff Manual says 5 seconds.

Regardless, with pushing or without, the LED just keeps on flashing. Homey just times out after a while and tells me that is all took too long and it didn’t add anything.

Is there any other way to add these devices? Am I doing something wrong?

I have tested it with 3 of the 4 devices … all exactly the same. So I am guessing there is some problem either with me, the devices or the app.

Any help is appreciated!