Is my phone bricked or stuck on a bootloop?

A

AC Question

Please help!
I tried to unroot my s4, so I followed the steps on Google and tried to unroot my s4 using ES file explorer, & then I must've accidently deleted something of the file system..
Then I power my phone off, power it back on and it won't turn on.The Samsung logo in white writing appears on for like 3 seconds then it powers off by itself and then it vibrates for like 5 timed ...
Please help. :(