How do I update my iPhone 8?

My phone have ios14 i need change to 16 I can’t my software have problem

The iPhone 8 cannot update to iOS 17, but it can update to iOS 16.

To do that, go to settings>general>software update and make sure to connect to a wifi network and that low power mode is turned off.

If you cannot update wirelessly please update via a pc or Mac instead

Update your iPhone using a Mac with macOS Catalina or higher

On a Mac with macOS Catalina or higher, you will use the finder in order to upgrade your iPhone. Make sure to Back up your device before starting the upgrade process.

On a Mac with macOS Catalina or later, you will follow the following steps:

1. Open a finder window
2. Connect your device to your Mac via a lighting to usb A or a lightning to usb c cable
3. Select your device in the left sidebar of the finder window
4. click general, then click check for update
5. Click download and update.
6. If asked, enter your iPhone passcode

Update your iPhone via a Mac running macOS Mojave or earlier, or on a Windows PC

On macOS Mojave or earlier, or on a windows machine, we won't use the Finder to upgrade your iOS

Instead, we will use iTunes. Make sure to Back up your device before doing any update or upgrade to your phone.

1. Open iTunes
2. connect your device to the computer with an lightning to usb a or a lightning to usb c cable
3. Click device button in the iTunes toolbar
4. In the summary tab, click check for update
5. Click download and update, follow The on screen instructions
6. If asked, enter your iPhone passcode.

See this user tip I wrote for more information about updating your iPhone

Updating/upgrading your iPhone - Apple Community

An iPhone 8 or iPhone X isn't capable of 17 or above; they require an A12 or better CPU. To install 16.7, use a computer or the Software Update function in Settings.

(244912)

You have to go to Settings > General > Software Update. But you can not do this with the IOS 17 beucase you need an A12 chip, but you can update to IOS 16.7, or you can upgrade your iPhone to an better iPhone like the iPhone SE, ETC.

My device i8 version 16.4.1

best not to update

I stupidly did the update and now my iTunes will not back up my iPhone

Update your iPhone, iPad, or iPod touch

• If you have an iPhone 8 plus, you can update to 16.7.7

Go to Settings > General > Software Update.

This link will show you how to update your iPhone, iPad, or iPod touch using WiFi -

Update your iPhone or iPad - Apple Support

This link will show you how to update using your computer -

Update iOS on iPhone - Apple Support

• If you have an iPhone 5S or 6/6plus, the highest you can update to is 12.5.7

• If you have an iPhone 6S through 7, or SE 1st generation, you can update to 15.8.2

• If you have an iPhone 8 or X, you can update to 16.7.7

• If you have an iPhone SE (2nd generation or later), or XR through 15, you can update to 17.4.1

Go to Settings > General > Software Update.

This link will show you how to update your iPhone, iPad, or iPod touch using WiFi -

Update your iPhone or iPad - Apple Support

This link will show you how to update using your computer -

Update iOS on iPhone - Apple Support

when I plug my iPhone into my iMac, iTunes does not see my iPhone.

I get a pop up window that offers to install an update, but the installation fails:

now if I want to backup my iPhone I have to use AnyTrans

Iphone 8 & earlier cannot support Ios 17

My iphone 8 w 64 GB is on IOS 14.5.1

should I update to IOS 16.7.4? or does my phone have too small a memory?

is there any benefit to updating, or will it create some Gotchas that will make me regret the update?

true, iphone8 can only get to 16.7.4

and after spending an hour on the phone with support, they tried everything they could and my iPhone 8 now cannot sync with my iTunes on my iMac

it was a VERY BAD IDEA to update my iPhone8, as I can no longer sync my contacts and calendar on my iMac

I will be required to buy a new Desktop computer if I ever want to use iTunes again, to sync my iPhone8

I really wish I had not updated my iPhone.. BAD BAD BAD idea

This link may be helpful. It describes the steps to do as Neil suggests.

Update your iPhone or iPad - Apple Support

This has already been answered on this thread. Read this Apple Support document:

Update your iPhone or iPad - Apple Support

Update your iPhone, iPad, or iPod touch with the Finder - Apple Support

Dont do it..

i did, and now i cannot backup to iTunes at all