Annoying Screen Locking

[caprionyx]

Hi all, Since last two days my phone suddenly is locking with a black screen floating padlock symbol with a digital clock and date and alarm symbol.This display turns on immediately as soon as screen idle / not used and blocks everything until home button hard pressed or power key depressed which is very annoying and pin code screen comes after that. pic posted belowhttps://paste.pics/86BJ8[/IMG]

I have turned on / off AOD and this screen display is not AOD as AOD is being displayed separately if turned on.I have tried every option and setting I can think of but this screen does not disable.

Is there any way or app or option to disable this screen locking my phone.

I have tried all options from settings /lockscreen/etc...

 

[mikedt]

Peel Smart Remote possibly? Have you got that app installed?

 

[caprionyx]

no I have checked other apps too ,no such app

 

[Hadron]

It might help if we knew what phone you had, whether you've had any recent updates.

But first suggestion: try rebooting into safe mode (instructions for doing this depend on what phone it is, so I can't tell you how as I don't know that but a quick web search will find it). This disables all third-party apps. If it still happens in safe mode then this is a system feature or pre-installed apps, so the answer must be in your system settings or one of those apps. If it doesn't then it's a user-installed app that's responsible, so the first thing I'd do is see whether any of them has had an update since shortly before this started.