Help Updating iPhone 6s to IOS10.2.1

[Cassie2015]

Hello guys, these days I tried to update my iPhone 6s to IOS10.2.1, but each time there will be an error stopped me to do that, I tried to uninstall some apps to make it more storage, and reboot, didn't help, anyone who can help me?

 

[bcave098]

Update using iTunes?

 

[Apple_Robert]

Are you on Wifi? If so, what is your current battery charge level?

 

[Cassie2015]

Update using iTunes?

How? Could you tell me the steps?
[doublepost=1486694571][/doublepost]

Are you on Wifi? If so, what is your current battery charge level?

Yes, I have connected to wifi, and the battery has 90%

 

[bcave098]

Connect to iTunes, click on the iPhone icon, click "Update" or "Check for Updates".

Or check the Apple website for instructions.

 

[DUIduckSAUCE]

Maybe restart it. Then plug it in. Then try again.

 

[Cassie2015]

Maybe restart it. Then plug it in. Then try again.

Connect to iTunes, click on the iPhone icon, click "Update" or "Check for Updates".

Or check the Apple website for instructions.

I will try, thank you
[doublepost=1486707695][/doublepost]

Maybe restart it. Then plug it in. Then try again.

there maybe some thing wrong with my iPhone, only restart can't do it