Please Help S4 GT I9500

[wire]

In short I wanted to root my phone and did something wrong by accident deleted the emmc partition without knowing:
I downloaded new firmware and the phone works but lost airview gps, near by devices and others but the phone is now rooted!
1- how to recover the emmc phone partition? The tools used see the partition as ("/.")
2- how to get back futures such as near by devices, air view, gestures etc?
3- how to reformat all the phone partitions to factory default?
4-what rom I need to install to gain facory settings?

if you answer number 3..everything will be back to normal ..please help
Details:
Hardware : MT6572 (MT6589 is Fake!)
Model : GT-I9500
Build number : ALPS.JB3.MP.V1.8
Build date UTC : 20131129-030046
Android v : 4.2.2
Baseband v: MOLY.WR8.W1315.MD.WG.MP.V4, 2013/08/07 10:44
Kernel v : 3.4.5 (whl@server2) (gcc version 4.6.x-google 20120106 (prerelease) (GCC) ) #1 SMP Fri Nov 29 10:58:14 CST 2013

[milliV]

hello can someone plz help me i already rooted my gt i9500 kenrel version but now im trynah put a rom on phone i downloaded about two roms (im not to sure if they are the appropriate roms can i be provided with links ) i also download recovery img but im having problems finding scatter files i was watching a video on how to convert scatter filess but i do not have an understanding can someone contact me n give me guidance step by step on what i have to do ([email protected]) i would be very thankful if i can get help asap