Screen goes out after 30 seconds - can't change this
Hello, I have an iphone 6S. Since a few weeks I noticed that my screen turns of after 30 seconds, which is quite annoying. Impossible to change it. Tried everything that I found on the internet. Automatique slot is grey, so I can't change it this way, and no, energy save modus is NOT active... Do I miss something here??? Help would be much appreciated...
iPhone 6s, iOS 15