Why doesn't my lockscreen go even when the pin I am applying is correct?

[Windows Central Question]

why my lockscreen dont go even when the pin i am applying is correct?

i had a pin over my lockscreen in lumia 720 i updated to windows 10 using insider it worked well since noon but then i was unable to unlock my phone. it is working completely i am receiving messages mail and call but not able to unlock it even after putting exact pin. kindly help me out

 

[Shahmeer Shahid]

This is a known fault in 10166 build. Try updating to the 15018 build as it fixes many of the lockscreen problems. And if you are on the 15018 build go ahead and give a bug report.