Default [Q] Blurr lock screen on my Titanium S5

I have flash MIUI V5 on my mobile but when I lock my mobile and try to unlock it I get blurr screen. I have also flashed the fix but it is not working. The problem started when I flashed the stock boot image. This problem has not gone even after I flashed the stock ROM. Please help as I am facing many problems. I have downloaded the stock boot image from this link.