For repair IMEI no. of any Samsung Mobile You have to do root Your Mobile, After Rooting Mobile, Go to Z3X box and Repair IMEI, here is step to step Solution.
Requirement for Rooting Mobile:-
Computer or Laptop:- You Need a computer system for rooting mobile, you can use any Opreating system in your PC i.e. Windows, Linux, Mac.
Root Packages File:- We need different Root Packages Files for Different Models of Samsung Mobile, If You are thinking that from where you will get Root Package File, then here is Link for Download the File - Click Here for File.
USB Data Cable:- USB Data Cable is known as USB Charging Cable, It Should be High Quality Version, Low Quality Data Cable gives very Bad Perfomance.
ODIN Tool:- It is a tool which is using in flashing Samsung Mobiles, Here I'm Giving Link to Download this Tool - Click Here to Download Tool.
Samsung USB Driver:- Driver of Samsung is very Neccessary to Connetterti your Device to PC. If you have not Driver then here is Link :-
Battery:- Battery Should Charge about 50 to 70%. Low battery may be cause of damage your Mobile.
How to Root:-
Open ODIN Tool as I have given Link of ODIN Tool.
Put your phone in Downloading Mode. (Press Power Button, Volume(-) and Home Button and then a page will appeare Now Press Vol (+) Button.
Connect Phone with USB Data cable to PC. Our Computer will take Driver. Link is already Given above.
Click on “AP” Option in ODIN Tool, Select and Browse file.
After Selecting file, click on Start button, processing'll Start, after processed "Reset" will show on ODIN Tool.
Phone will Reboot and Rooted Done.
HOW TO REPAIR IMEI NO. Of SAMSUNG MOBILE?
After Root Goto Settings of Mobile Goto About Device, touch 7 times on “Build Number” for Enable “Developer Option”, Now go back and Open Developer Option and Select “USB Debugging”
Open Z3X Box Select Model no then goto repair, Put there IMEI no. and Serial Number and Click on “Repair”