How to Prepare Your iPhone for iOS 27 Without Losing Data

James Davis
James Davis Originally published Jun 08, 2026, updated Jun 08, 2026
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To securely update to iOS 27, you must verify your device is supported, clear 12 to 17 GB of free storage space, and create a local or cloud backup to prevent data loss from potential installation failures.
    ● iOS 27 is exclusively compatible with the iPhone 12 Series and newer, including the iPhone SE (3rd Gen, 2022), and requires disabling Low Power Mode while maintaining a charger and Wi-Fi connection to prevent update interruptions.
    ● While iTunes and iCloud create opaque, all-or-nothing device copies restricted to Apple hardware, Dr.Fone - Phone Backup provides an offline alternative for users requiring selective backups, incremental saves, and cross-platform data restoration to Android or iOS devices.
    ● If the installation crashes and traps the iPhone on the Apple logo or Recovery screen, recovery options include force restarting, forcing the update via iTunes/Finder, or using Dr.Fone - System Repair (iOS) to resolve system errors or downgrade to iOS 26 without erasing existing data.


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Are you worried about losing all your data during the iOS 27 update? Though major iOS 27 releases excite you, they can lead to failed installations or data loss if your phone is not prepared properly.

This is why a backup and basic checks are necessary before you press the “Update” button. So, this iOS 27 backup guide will help you protect your data and verify device compatibility. As you know, the importance of backups; learn to create selective or incremental backups with Dr.Fone - Phone Backup, and resolve update issues with Dr.Fone - System Repair (iOS).

In this article
  1. Part 1. Why Preparing for iOS 27 Is Important?
  2. Part 2. Check If Your iPhone Supports iOS 27
  3. Part 3. Back Up Your iPhone Before Updating to iOS 27
  4. Part 4. Free Up Space and Clean Your iPhone Before iOS 27
  5. Part 5. Essential Pre‑Update Checklist to Avoid Data Loss
  6. Part 6. What to Do If Something Goes Wrong During the iOS 27 Update
  7. Frequently Asked Questions

Part 1. Why Preparing for iOS 27 Is Important?

Before the iOS 27 update, learn why backups can be a lifesaver and what data you can lose when you don’t have any backup.

why prepare for ios 27

1. Major iOS Updates Can Cause Unexpected Problems

According to Notebook Check, users have experienced issues with all previous updates, such as lost messages and screen glitches. This also created app compatibility problems, and they were common enough to make preparations worthwhile. Hence, a backup helps protect the data and reduce the risk of performance or update-related problems.

2. What Users Usually Lose During Failed Updates

If you don’t ensure iOS 27 readiness, your iPhone can get stuck in Recovery mode, and you may lose data that hasn’t been synced or backed up. Hence, this includes game progress, images/videos, and custom settings. Most often, when you try to fix the update issue, it might require you to restore the device, which can erase everything stored on it.

3. Why Backups Matter Before iOS 27

Based on the mentioned pitfalls, CNET suggested in previous updates to create local or computer backups. Thus, this will give you a secure copy of your images, apps, and settings, making it easier to restore if the update is unplanned.

Part 2. Check If Your iPhone Supports iOS 27

To continue on this iOS 27 backup guide, it's important to know whether you can update.

Expected Compatible iPhone Models

In this regard, review Apple’s iOS 27 rumored compatibility table from MacRumors:

iPhone Series Expected iOS 27 Support
iPhone 17 Series Yes
iPhone 16 Series Yes
iPhone 15 Series Yes
iPhone 14 Series Yes
iPhone 13 Series Yes
iPhone 12 Series Yes
iPhone SE (3rd Gen, 2022) Yes
iPhone 11 Series No
iPhone SE (2nd Gen, 2020) No
iPhone XS / XS Max / XR and Older No

What Happens if Your iPhone Is Unsupported?

If your phone is not on the list, it will continue working on its current iOS version, but you will miss new features and future improvements. Over time, some apps may stop getting updates or become incompatible with your device. Eventually, you will no longer get security updates, which can increase security risks and reduce overall app compatibility.

Part 3. Back Up Your iPhone Before Updating to iOS 27

Before the iOS 27 update, review this section and learn how to create cloud or computer backups.

1. Use iCloud Backup

iCloud Backup creates a secure copy of your device in Apple’s cloud that's easy to recover. Since it's stored online, you can restore it to your current or a new device with internet access. So, follow the steps mentioned ahead and learn to create a backup via Settings:

create icloud backup

Instructions. Go to the “iCloud Backup,” as you pick the “iCloud” option and your Apple ID. Here, activate the “Back Up This iPhone” option, tap “Back Up Now” and wait for the progress bar to end.

2. Create a Full Backup on Mac or PC

As you meet iOS 27 readiness, you can create local backups on a computer using the 2 options listed in this section.

Option 1. iTunes or Finder

Unlike iCloud, this backup method doesn’t need a stable internet connection or cloud storage limits. Additionally, it can include sensitive data that you can later encrypt. This option is also suitable because archived backups can be preserved and used later if you need to restore the device, and is guided ahead:

  1. Step 1 Press the “Trust” option on the iPhone and the “Phone” icon on iTunes as you connect the device with Windows iTunes.
    pick phone icon
  2. Step 2 In the “Summary” tab, go to Backups, pick the “This Computer” option, and tap the “Back Up Now” button.
    tap back up now

Option 2. Dr.Fone - Phone Backup

This iOS 27 backup guide also suggests that you create a local backup using Wondershare Dr.Fone. This iPhone backup tool allows you to selectively or incrementally back up 20 data types while iTunes backs up the device as a whole. Furthermore, Dr.Fone states that it will not overwrite the present data, and you can view the backup files in detail.

Since the tool provides automatic Wi-Fi and incremental backups, you can set the backup date and location to eliminate manual hassle. It is said that iTunes backups are opaque files, whereas Dr.Fone lists proper data types and lets users browse and categorize the backed-up data. Most of all, users can restore data to Android and iOS devices, unlike iTunes, which is limited to Apple devices.

Dr.Fone Basic

Manage, Transfer, Backup & Mirror Your Devices
  • gouEffortlessly manage data through preview, delete, export, etc.
  • gouTransfer all data between devices.
  • gouRobust backup solutions for reliable data protection.
  • gouMirror screens to PC for meetings, teaching, and control.
Try It Free Try It Free Try It Free Try It Free
Dr.Fone Basic

Guide to Create Local Backup Using Dr.Fone - Phone Backup

  1. Step 1 Choose Data Types and Location to Backup Now

    Tap the “Back Up Now” button as you choose the data types and backup location in the “My Backup” tab.

    choose data to backup
  2. Step 2 Pick to View Backups After Completion

    When the tool detects the device and data types, wait for it to complete the backup. Then, choose the “Open in Folder” or “View Backups” options to preview and browse the saved backup.

    tap to view backups
google play button app store button

Why Are Local Backups Safer? Dr.Fone vs. iTunes/Finder

Regarding iOS 27 readiness, local backups are safer than iCloud because they create an offline copy that is not affected by internet or cloud sync issues. So, to know whether you should choose Dr.Fone - Phone Backup (iOS) or iTunes/Finder, review the mentioned table:

Aspect Dr.Fone - Phone Backup (iOS) iTunes / Finder
Backup Control Select which data types to back up Always back up almost the entire device
Restore Control Restore only the chosen items without wiping the phone Restores the whole backup, can overwrite everything
Backup Visibility Can browse and preview backup contents Backup is a single opaque file
Incremental Backups Supports incremental backups to save time/space Typically creates larger, less flexible backups
Automation Can schedule and run Wi‑Fi backups automatically Manual and cable‑dependent
Cross‑device Flexibility Can move certain data between different devices Only restores to Apple devices
Extra Protection Tools Adds recovery/repair tools alongside backup features Limited mostly to sync + backup/restore
Overall Safety for Your Data Strong: more copies, more control, easier recovery Good, but less flexible and more “all‑or‑nothing”

Part 4. Free Up Space and Clean Your iPhone Before iOS 27

Other than a backup, you need to free up space before the iOS 27 update to ensure it installs without interruption.

1. How Much Free Storage You Should Have for iOS 27

Although the update file itself might be smaller, you need 12-17 GB of free space on your iPhone. Note that insufficient storage can lead to installation errors, failed updates, and performance issues. Therefore, if you have enough space, you can make sure your apps and system are operational during the update process.

2. Delete Unused Apps, Photos, and Files Safely

Review Downloaded Media in iPhone Storage lets you safely remove unnecessary content while keeping important data. Since this clean-up can improve overall device performance, here is how you can perform this action:

Instructions. Tap the “iPhone Storage” option in the General settings and pick the “Review Downloaded Media” option. Now, choose the file you want to delete, swipe left, then tap “Delete” to free up space.

choose to delete files

3. Offload Data to Cloud or Computer Without Losing Anything

To ensure iOS 27 readiness, you can offload data to iCloud, which can be restored when needed. Hence, this extra space made via the given steps can reduce update errors and improve installation success:

Instructions. In the “iPhone Storage” settings, locate the app you want to offload and tap the “Offload App” button.

tap to offload app

Part 5. Essential Pre‑Update Checklist to Avoid Data Loss

Regarding the pre-checks before the iOS 27 update, perform the basic steps outlined in this section:

  1. Step 1 Turn Off Low Power Mode and Connect to Stable Wi-Fi

    Low Power Mode can limit certain background processes, while a strong Wi-Fi connection ensures the update downloads and installs without interruptions. Together, these steps can reduce the risk of update errors.

    Instructions. Tap “Battery,” then toggle off “Low Power Mode” in the settings.

    pick battery and mode
  2. Step 2 Check Battery and Charge Level

    Make sure you have enough battery, as it is likely to shut down during the update process. Hence, keep the phone plugged in during the update to ensure the installation completes without any problems and to limit the number of software issues.

  3. Step 3 Take Screenshots of Important Settings (Optional, But Useful)

    This is an optional but safe precaution in this iOS 27 backup guide, as it keeps settings intact and provides a quick visual reference. Since it takes only seconds to perform this action, it can serve as an additional security layer for data protection alongside backups.

  4. Step 4 Update Apps and Check iCloud Sync Status

    Updated apps are more compatible with the iOS 27 updates and reduce the risk of performance issues and crashes. At the same time, it's important to check that iCloud is syncing photos, contacts, and other important data to ensure information is stored in the cloud.

    To Update Apps

    Instructions. Tap the “Profile” icon in the App Store and choose the “Update All” button to make applications iOS 27 compatible.

    choose update all apps

    To Check Sync Status

    Instructions. Choose “iCloud” settings as you press Apple ID and pick the “See All” option from the “Saved to iCloud/Saving is Paused” section and toggle the listed apps.

    tap see all menu

Part 6. What to Do If Something Goes Wrong During the iOS 27 Update

1. iPhone Stuck on Apple Logo or Recovery Screen

When the iPhone gets stuck on the Apple Logo or Recovery screen, force restart the iPhone. If this fails, update via iTunes/Finder as you download the update file. Regarding the steps, the detailed instructions for both actions are listed ahead:

iPhone Newer (Includes iPhone 12, 13, 14, 15, and 16 Series):

Instructions. Quickly press and release the “Volume Up” button, then the “Volume Down” button, and hold the “Power” button. Hold for 10-30 seconds until the Apple logo appears, then release the button to finish booting up.

force restart ios

Use iTunes/Finder to Update

Instructions. Connect the phone to iTunes/Finder and repeat the button combinations mentioned above to pick the “Update” option from the pop-up. The computer will download and install the latest iOS 27, wait for it to conclude.

choose the update option

2. Restore Data from Your Backup (iCloud, iTunes/Finder, or Dr.Fone)

Restore iCloud Backup

  1. Step 1 On the setup screen, choose the “From iCloud Backup” option and add the Apple ID to “Agree” the listed terms.
    tap the next button
  2. Step 2 While connected to Wi-Fi, select the backup from the “Choose an iCloud Backup” screen and tap “Continue” to restore.
    choose backup and continue

Restore iTunes/Finder Backup

  1. Step 1 On the iTunes “Summary” tab, click the “Restore Backup” option as you connect and tap “Trust” for your device. For Finder, access your iPhone from the “Locations” section in the left sidebar and press “Restore Backup.”
    choose to restore backup
  2. Step 2 Stretch the menu for “iPhone Name” and choose the backup to press the “Restore” button.
    tap restore button

Restore Dr.Fone Backup

  1. Step 1 Choose to Access Dr.Fone Backup History

    In the “Backup History,” locate the backup you created and choose the data you want to restore by pressing the “Export to PC” or “Restore to Device” option.

    choose to restore backup
  2. Step 2 Continue to Restore Backup on PC or iPhone

    When prompted, choose the “Continue” option, and the tool will restore data to the chosen device.

    tap the continue button

3. Fix System Issues Without Erasing Data (Dr.Fone – System Repair)

So far, you know what to do before the iOS 27 update. However, if the device is still stuck on the Apple Logo or keeps restarting, use Dr.Fone - System Repair (iOS). Using this, you can resolve 15+ iOS issues, including 200+ iTunes errors like 4013 and 1110, without any data loss. If the update issue persists, you can also use it to downgrade to iOS 26, with the option to access Recovery and DFU modes freely.

shou
Note: Follow this Guide Link to fix system issues or downgrade according to iOS 27 update issues.
google play button app store button

Conclusion

To sum up, this iOS 27 backup guide is a complete answer if you wonder how to keep the data secure and bypass update issues. From backups to basic checks, all the steps are highlighted in detail.

So, choose Wondershare Dr.Fone over iCloud and iTunes, as it gives selective and incremental options. In case of update issues, restore the data to the PC or another iPhone using this tool. Experts also suggest using the System Repair tool of Dr.Fone if the update creates a boot loop or gets stuck on the Apple logo.

google play button app store button

Frequently Asked Questions

  • 1. Can I use my iPhone while iOS 27 is downloading?
    Yes, you can keep using the iPhone while the update downloads in the background.
  • 2. How long does an iOS 27 backup usually take?
    Backup depends on your data size, but most backups finish within a few minutes to an hour.
  • 3. Will updating to iOS 27 delete my apps?
    No, a normal iOS update should keep your apps installed unless a serious issue requires a device restore.
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James Davis

James Davis

staff editor

James is a tech writer and editor with expertise in both Android and iOS, known for translating technical concepts into practical guidance for everyday users.

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