Untended Jailbreak IOS 6.1.3 on Iphone 4, possible?

I just saw a free video clips on YouTube about jailbreaking IOS 6.1.3 on Iphone 4.


Is it possible or are those all tended jailbreak?

There's no official jailbreak for iOS 6.1.3.So you can't expect untethered jailbreak. This videos show a trick on how to mask ios 6.1.3 as ios 6 so jailbreak can work.

Definitely you can't perform tethered jailbreak

There's no untethered jailbreak for iOS 6.1.3 yet.