Display does not turn off after 15 seconds

[Bozanidil]

Telefonum normalde 15 saniyede ekrana dokunmasam ekranında kapatıyor ama iki gündür tus kilidi ile kapatmasam kapanmıyor ayları defalarca degistirdim kapattım actım yeniden baslattım düzelmedi  buna acil bir cözüm bulun lütfen 

Translation via Google translate:

My phone normally closes on screen for 15 seconds when I touch the screen but when I close it with two keystrokes every day I do not close it several times I have switched it off I've restarted it again I have not resolved find an immediate solution please

[Qatrium]

Hello @Bozanidil and welcome to the community!

I used Google Translate to find the meaning of your message. Kindly post your future questions/feedbacks in English so we can assist you, this is an English based forum.

From what I understood, you have a problem with "double-tap to sleep" feature? If so, did you enable the feature on your phone? To do so:

- Long press on any empty space on your home screen -> Settings -> Double-tap to sleep -> enable

[Bozanidil]

 It does not turn off after 15 seconds when the phone screen is touched and needs to be turned off.

[Qatrium]

@Bozanidil

Start troubleshooting by restarting your phone into safe mode, this will disable all installed 3rd party apps. Use the blue link for a guide.

If the problem is resolved then one of your installed apps is causing this issue and you have to figure out which one. Start by uninstalling those apps you installed recently.

[Bozanidil]

I am happy that the problem has been solved

[Qatrium]

@Bozanidil

I'm glad for you, but how it was solved?