Stuck on Boot Animation Recently I installed MIUI v5 rom on my smartphone. 

When I rebooted my smartphone it got stuck on the MI Boot Animation Logo. 

What is the problem?

Please Help me.
It is stucked in boot-loop and maybe soft bricked. Its not bricked but can be soft bricked. I had also suffered this problem two times. Dont fear it will not damage any of your hardware function. It only happens if
1. The ROM you flashed doesn't matched with your phone.
2. Gapps has not been installed correctly.

You can solve this problem. Try turning off your phone and after turning on immedietly press the volume up and power button simultaneously. It could be different because different companies have different methods of booting into recovery. If you succeed in it then go ahead and if you fail then try other button combinations. After booting into recovery, navigate to wipe data section by using the volume keys. Then clear your cache partition. After doing this, get your default ROM from any website. I am sure that one or more websites will surely contain  it. AFTER DOWNLOADING IT INSTALL THE ROM. Then clear the dalvik cache and cache. Now, just reboot. Your problem will be solved.If any problem, please comment.