You can see for attached file, using the same phone, for KC868-H4, the slide for the on/off switch comes out. the signal for the phone is LTE also.
even if i switch to a different wifi signal, the same happens for the H8 units (both of them) while for the H4 unit , the slide is there. please note the wifi signal and time
even if i switch to a different wifi signal, the same happens for the H8 units (both of them) while for the H4 unit , the slide is there. please note the wifi signal and time