I tried several times but same thing happen so:
a) is it possible to only lock a phone without activation of siren?
b) also without activation screen backlight?
c) i think Avast have to fix this... after I remotely lock the phone backlight is on until full battery discharge... no sense!
Explanation:
a) I left mobile phone at known place, for example on my desk in a company. I come home and I realize that and I only want to lock it, without any attracting attention to phone. But, automatically with locking siren is activated. No, I want only to lock device
b) if I want to lock it, why screen backlight should be on?
c) I want only lock phone that (in this example) on one of collegues can do anything. But as long as LOCK is activated also backlight activated, so next morning I come to the office I have empty battery. Great!