Warning: This firmware use to repair IMEI OR Write Cert and Fix problem,bypass samsung account,bypass Google account,downgrade in some models,enable usb debugging,remove any security FRP.
Install the Driver on your computer
Extract (un-rar) the Combination firmware file
Download Odin From Here
Extract Odin ZIP file
Reboot Phone in Download Mode press and hold Home + Power + Volume Down buttons
Connect phone and wait until you get a blue sign in Odin
Launch Odin Application.It Will Show the message added.If you did not get this message Repeat the above steps.
Make sure re-partition is NOT ticked
Click the start button, sit back and wait few minutes After this the device will reboot and login to Combination ROM