Updating to 9.2.1

I've got an iPhone 4s currently on 7.1.2. I'm horrible at updating, obviously. My phone has 1 update (to 9.2.1) but it won't complete it. Just says "downloading" and the little settings wheel keeps spinning.
I'm somewhat technically challenged, so please be kind!

Can I update directly to 9.2.1 or do I need to go up the ladder and load each update inbetween 7.1.2 and 9.2.1?

Thanks for the help.

Karen
 
I've got an iPhone 4s currently on 7.1.2. I'm horrible at updating, obviously. My phone has 1 update (to 9.2.1) but it won't complete it. Just says "downloading" and the little settings wheel keeps spinning.
I'm somewhat technically challenged, so please be kind!

Can I update directly to 9.2.1 or do I need to go up the ladder and load each update inbetween 7.1.2 and 9.2.1?

Thanks for the help.

Karen
Thats odd because I too have an iPhone 4s but mine still has iOS 7.1.2 & it always has been saying "Your software is up to date.". Hmmm
 
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