4s iphone which os supput
4s iphone which os supput
iPhone 4S, iOS 8
4s iphone which os supput
iPhone 4S, iOS 8
Update the iOS software on your iPhone, iPad, and iPod touch
Learn how to update your iOS device wirelessly or using iTunes.
iOS software updates introduce new features that let you do even more with your iPhone, iPad, or iPod touch. Be sure to keep your devices up to date so that you don't miss out on the latest features.
Before you update
Back up your device to iCloud or iTunes.
If you use your device's Personal Hotspot for your computer's Internet connection, update your device wirelessly or connect your computer to another network.
Update your device wirelessly
The easiest way to update your device is wirelessly, also called “over the air.” Here’s how:
If you have some free space, but not enough to update over the air, you can either update using iTunes
from your device. Whether you use iTunes or update over the air, you'll have the same amount of free space on your device after you update.
Some iOS software updates aren't available as over-the-air updates. VPN or proxy connections might prevent your device from contacting the iOS update servers.
Update your device using iTunes
If you can’t update wirelessly, or if you want to update with iTunes, follow these steps:
If you don't have enough free space to update using iTunes, you'll need to delete content manually from your device.
Find out what to do if you get other error messages while updating your device.
iOS 8.3 is the latest version.
4s iphone which os supput