By Lena / Last update September 2, 2021

iOS 14 was released last fall. Now iOS 15 comes out with new features and improvements. Can’t wait to update to iOS 15 to enjoy all the new features? Just one more step - make sure you have your iPhone data safely stored somewhere before the upgrade.

iOS 15 Preview

Do I Need to Backup My iPhone Before iOS Update?

The truth is that there is always a risk of data loss when upgrading to new iOS. Each year, we receive many emails from users saying that some data get lost after the update. Upgrade can bring your new features as well as many bugs. So it’s necessary to backup iPhone before installing beta or the official version.

On the other hand, due to Apple's security settings, the backup made on a higher iOS version is not supported to be restored to the device that running a lower iOS version. If you feel disappointed with new iOS and want to downgrade from iOS 15 to iOS 14, the backup you made on iOS 15 cannot be restored to your device.

All in all, for anyone who wonders “Do I need to backup my iPhone before upgrading?”, the answer is definitely Yes. It is recommended to backup iPhone before upgrade in case of data loss. It’s also a back road to the downgrade.

How to Backup iPhone Before Upgrade?

There are three iPhone backup solutions for you to choose from and I’ll detail the advantages and disadvantages of each method. You can first read and choose one that suits you best to follow.

Method 1. Backup iPhone with iCloud

If you want to complete the backup on your iPhone directly, then you can choose to backup iPhone with iCloud. You just need to connect your iPhone to a Wi-Fi network and click the "Backup" option to run a backup automatically.

It will help you backup most iPhone data and settings. However, only 5 GB of free storage space is provided. If you do not want to upgrade the storage plan, you can go to delete the previous backup to free up more space.

Note: You can go to Settings > [your name] > iCloud > Manage Storage > Backups > Choose your device > Toggle off the data that you do not want to include in your iCloud backup.

Steps to Backup iPhone Before Upgrade with iCloud

1. Connect your iPhone to a stable Wi-Fi network.

2. Tap Settings > [your name] > iCloud.

3. Turn on iCloud Backup option.

4. Tap Back Up Now to start a backup at once.

Backup iPhone with iCloud

To restore from an iCloud backup, you should first erase your iPhone and it will take you to the setup process to select the “Restore from iCloud Backup” option to make it. All backup data will be restored to device.


- Support most iPhone data & settings.

- Backup can be done on the device.


- Do not support selective backup & restore.

- Limited free storage space.

- The backup files are not accessible.

- It will erase the existing data on the device during the restoration.

Method 2. Backup iPhone with iTunes

Although it’s quite easy to backup iPhone with iCloud, only 5 GB of free storage space is provided that may not enough to store all your data. In this case, you can let iTunes help you backup your iPhone to computer. It will make a complete backup for your iPhone data and custom settings.

Steps to Backup iPhone Before Upgrade with iTunes

1. Download and install the latest version of iTunes on computer.

2. Connect your iPhone to computer and usually, iTunes will run automatically.

3. Click the Device tab > Click Summary > Select This Computer > Click Back Up Now to start the backup.

Backup iPhone with iTunes

To restore an iTunes backup, you should click the “Restore Backup” option on the Summary interface.


- Support most iPhone data & settings.

- No backup storage space limitation.


- Do not support selective backup & restore.

- The backup files are not readable.

- It will erase the existing data on the device during the restoration.

Method 3. Backup iPhone with AOMEI MBackupper

The above are two official iPhone backup ways provided by Apple. Both iCloud and iTunes will help you make a backup package, however, what if you just want to backup some specific data like photos? One free iPhone backup tool named AOMEI MBackupper is your best choice.

● It helps you backup the most important iPhone data: contacts, messages, photos, songs, and videos.
● It lets you preview and select the data you really want to backup instead of items.
● It also supports selectively restore and will not erase any existing data on iPhone.

Steps to Backup iPhone Before Upgrade with MBackupper

1. Download, install and launch AOMEI MBackupper > Plug in your iPhone > Enter passocde on iPhone so the software can access your device.

2. Click Custom Backup option > Choose the type of data you want to backup. You can click each icon to select the items you want to backup.

Choose Custom Backup

3. Select the storage space (you can even choose to backup iPhone to flash drive)> Click Start Backup to make it.

Start Backup

To restore a backup, go to the Backup Management page > choose the backup task > preview the backup files > click “Start Restore” to make it.


- Easy to use.

- Support selective backup & restore.

- No backup storage space limitation.

- The backup files are accessible and readable.

- No data erase during the restoration.


- No Mac version.

- Just support a few types of iPhone data.


It’s necessary to backup iPhone before iOS 15 update. It can help us get back lost items as soon as possible if unfortunately, the upgrade goes wrong. For a complete iPhone backup, you can let iTunes or iCloud help you. If you prefer a selective backup & restore, AOMEI MBackupper is the way to go.