CAN i reinstall the system apps which i have deleteed accidently during rooting? Recently i have rooted my phone .And somehow my media storage has beeen deleted during the rooting process ans i cant play the music and watch photos .My andriod version is 5.1. So can somebody send me the apk file (the apk file of system apps can be created by apk extractor ,you can find it  on play store) of the media storage ,so i can reinstall it.
P.S.I have tried with other versions of andriod and i failed.

PHONE DATAILS:
OBI SJ1.5
RAM 1 GB
You might need to reset your phone to stock rom for that