thats what i can see

https://imgur.com/a/d08lofA

hi, i own that device but i cant make it work, basically the manual is even faulty translated... when i press 3x button within 1sec (really 1sec? crazy.... ) nothing happens - both green leds are on. when i press button for 10sec nothing - even it should reset device.... when i hold it 30-40 sec ...