How-to Remove/Uninstall Jailbreak

If you just jailbreak iPhone/iPod/iPad using *any* jailbreak tool and found any problems around, you might want to go to previous state where your device has not been jailbroken.
So, how-to remove or uninstall jailbreak is simple, all you need to do is restore your iPhone firmware by pressing shift + click restore.

By restoring iPhone firmware, you will have a brand new software on device, there will not be any information left.
MAKE SURE YOU HAVE BACKED UP ALL INFORMATION (Open iTunes → Right click on device → click Backup).

Frequently Asked Question:

Q: What will happen after I restored the iPhone firmware?
A: All information will be deleted, the iPhone software will be like new, empty without any contact, message, applications. There will be nothing, just like brand new phone.

Q: How can I get back my information, applications, music, pictures, and all others data?
A: Simply click Restore from backup… after the restoration finished on iTunes.

Q: Where is all cydia and other jailbroken apps?
A: Apps which requires jailbreak will not be restored to your device unless you do re-jailbreak.

Any other questions please post to the comment below ↓