Lockscreen isnt actually Locking phone

[KJayavishnu]

I didn't Used The lock screen For 6 months And now when I lock my screen with pattern!  After 15-20 seconds It directly Goes into Home screen!!  Ignoring the pattern I kept!!  First I thought maybe Any third party app restricted lockscreen but Even when I reboot to safe Mode the problem Persist!, I tried Restarting!  Updating and Resetting!!  But the problem Still persist 

[Emil]

Hi @KJayavishnu,

I would recommend that you remove and re-add your pattern lock.

If you are still experiencing the same behavior I'd recommend that you perform a software repair using Xperia Companion.

Let me know how it goes.