Help! Boot animation accidentally deleted! MyPhone Rio

So I was trying to install a custom boot animation. The original animation file duplicated, deleted 1, lost both. Thing is, when I try to reboot, I can still see the logo! How do I fix this?

Myphone A919i Duo

Can anybody provide me with official 4.2.1 stock rom of Myphone A919i Duo or suggest me a rom which is best for gaming and is working/tested on this device.