LED notification light stopped working

[Olciakk]

Hello, I'm working on stock ROM, Android 7.1. Today I realised that my LED light stopped working at all (when charging, notifications, etc.). Could it be somehow changed in settings or software, or does it mean that it just broke?

Thanks

 

[Olciakk]

Well, it turns out that LED light works when my device is turned off... But still when it's on, the diode doesn't work. Did anyone have a problem like this?

 

[Olciakk]

Finally I found this! I thought that there are no options related to LED light, well there are, but it was teribbly translated to polish. It was in screen options, "Migające przyciski dotykowe" - something like "Blinking touch buttons". I would never say it is about LED light.

Sorry for making mess on forum, my problem is solved