How update IPhone 4 S thorought a PC

[iMore Question]

I Have never updated my Iphone and intend to update now by means of a PC at home.
How can I do this?

 

[albanomarques]

I have never updated my IPhone 4 S and intend to do so now, by means of a PC athome.
How can I do this?

 

[Fausty82]

Just connect your iPhone to your computer via the USB/30-pin cable. If iTunes does not launch automatically, launch it and then click on your iPhone link in iTunes. On the Summary page, there will be a link for update the iOS version...