i resume this post: is there a procedure for factory reset of a device?
Any update? I need factory reset too.
Same Question ?
Is there a factory reset?
My switch blinks 4 times , than a short break and than again 4 times.
Factory reset is it a secret???!!!!
I have had similar problems moving a Sonoff double gang touch switch over to a new router and found how to put the device into compatible pairing mode... It was a bit odd but touching both touch zones continuously and wait past the single beep 'till the two beeps. Then release and repeat this time on second set of two beeps the wifi connection LED should then start to flash rapidly and continuously, at which point the built in AP should have become active and one should be able to talk the ewelink app into pairing with the new wifi (assuming you are connected to the new wifi and have entered and saved the new wifi passphrase within the ewelink app). Hope it helps.
The latest firmware, v3.3.0 enables LAN mode but for me it was unreliable and frequently seemed to lockup. Only 433MHz or WAN mode seems reliable.