I have Wifi 4 switch v2 , with firmware v6.9. In app I saw update of v7, i pressed it and all lights started blinking not stop very fast. I had to turn off MCB, and reset device.
Sorry for the inconvenience. This happens because there was no firmware update on the backend. I have fixed it just now. There was no need to reset the device. Just turning off the MCB On/ off would have worked.
v7.5 should be available to you now after a couple of app restarts