Why does my screen keep showing lights when locked?

[Windows Central Question]

Hey guys, screen keep showing lights even after i locked...

Hey guys, am using windows 10 insider in my lumia 535... i am locking my phone... after few seconds screen turns on... i dont know what is the reason.. kindly help to resolve this issue in windows update

 

[Maurizio Troso]

Re: Hey guys, screen keep showing lights even after i locked...

Hey guys, am using windows 10 insider in my lumia 535... i am locking my phone... after few seconds screen turns on... i dont know what is the reason.. kindly help to resolve this issue in windows update

First time ever heard it!!! Did you try a simply soft-reset?