lhow to adjust volume?
How to program the smart lock
The spring for what
How to change to English language?
how to change the language
is this smart lock applicable to a steel bar?
Useless video. My door knob can still be opened from the outside even if you lock it from the inside. I should not be able to open it from outside when it is already locked.
Does anyone know how to connect to a phone application?😊 thanks innadvance😊