How to back up my Apple iPhone 6S using iTunes
You can use iTunes to back up your Apple iPhone 6S. iTunes will save a backup file on your computer, which can be used to restore your Apple iPhone 6S if itʼs damaged or replaced.
If you donʼt have iTunes on your computer, youʼll need to download and install it. In this example, we use iTunes v12.5.1.21.
1. On the computer, start iTunes.
2. Connect the iPhone 6S to the computer. In iTunes, select the iPhone 6S.
3. Click Back Up Now.
4. Wait while the iPhone is backed up.
5. The iPhone has been backed up to iTunes.