[Q] plz help topic

hi,i have a xolo A500s...i had rooted it and deleted the basic file explorer,music player,browser and a few other apps...my phone got reset and now i dont have any of those apps...especially the file explorer...plus i had changed my msg and contacts..so i cant access any of them...without the file explorer i cant open my storage to install the app i have in my sd...i dont have google play either...plz help.....is there any way to recover the basic os with the basic apps?? i have android 4.2.2 ..