Samsung galaxy s4 update with root

[QQ FIFA]

How do i update my s4 running 4.4.2 to lollipop i use vodafone in iceland please help

 

[Rukbat]

If the kernel date is earlier than June 3, 2014, use Towel Root, otherwise try iRoot.

 

[QQ FIFA]

It is already rooted and i want 5.0

 

[Rukbat]

Oops, sorry, I misread that.

Go to SamMobile Firmwares and look for an Icelandic 5.0 ROM for that model S4, or go to XDA Forums and see if anyone has captured an update file for it.

 

[QQ FIFA]

Then how do i install it