Now listen to me, I will provide the link of that video but there are some big cons.
> If you failed to do it properly then your phone will be dead and CANNOT BE REPAIRED COMPLETELY.
> It depends on luck as if there's a software on the website same as your phone's version, Then you can force firmware it unless there's no option sadly.(I was not lucky)
> If you still cant get what I am saying then watch this video, It will clear all of your problems and confusions.
https://youtu.be/z2ou4cOjr94?feature=shared
AND PLEASE WATCH FULL VIDEO BEFORE BECOMING A DOCTOR BY YOURSELF..
