How to Downgrade iOS 26/19 to iOS 18 [No Data Loss] – Works for Beta 1/2/3

Part 1. Can You Downgrade from iOS 26/19 Beta to iOS 18?

Quick side note

Apple may soon rename its OS versions using calendar years instead of traditional numbers. So instead of iOS 19, the next release could be iOS 26. This change might affect iPadOS, macOS, watchOS, tvOS, and visionOS as well.

Yes. You can downgrade from iOS 26/19 Beta to iOS 18 as long as Apple is still signing the iOS 18.4.1 firmware. However, Apple usually stops signing older versions shortly after a new release, so this option is only available for a limited time. Be sure to check the signing status and back up your data before attempting to downgrade.

Once all preparations are done, you can follow the step-by-step downgrade guide in the next section to safely revert to iOS 18.

Part 2. Top 3 Ways on How to Downgrade iOS 26/19 Beta to 18 for iPhone/iPad

To prepare for the downgrade:

• Back up your iPhone to prevent any data loss during the downgrade.
• Keep your device connected to power to avoid interruptions.
• Use a stable internet connection to ensure smooth downloads and updates.
• Make sure your device is in good working condition before starting the process.

Once ready, follow the next steps to downgrade safely. Here's how to downgrade iOS 26/19 Beta to 18 on an iPhone/iPad in 3 ways.

Way 1. Downgrade iOS 26/19 Beta to 18 Without Data Loss/Jailbreak/iTunes [Best Recommended]

Unlike traditional methods like iTunes or Finder — which often force a full restore, wipe your data, or even cause your device to get stuck — Tenorshare ReiBoot offers a stable, one-click downgrade solution that's both safe and easy to use. No jailbreak, no technical skills, and no data loss.

If you’re dealing with bugs, battery drain, or app crashes on iOS 26/19 beta, ReiBoot is the easiest way to safely downgrade to iOS 18. It’s designed for both beginners and advanced users, offering a smooth and reliable rollback without the usual hassles.

Why we recommend you to use Tenorshare ReiBoot as your best iOS 26/19 downgrade tool:

• No data loss during downgrade.
• Downloads the right iOS firmware automatically for you.
• Compatible with all iPhone models.
• Downgrade smoothly without iTunes & jailbreak.
• Fast, efficient & high success rate.

Here's how to Downgrade iOS 26/19 beta to iOS 18 [No Data Loss] – Works for Beta 1/2/3 with Tenorshare ReiBoot:

• Install and execute ReiBoot on your computer. Then, connect the iPhone/iPad to the same PC. Trust your iDevice when asked. Tap "iOS Upgrade/Downgrade" on the interface.

  

• Then, pick "Downgrade" to start the process.

  

• Hit "Download" to get the current iOS 18 firmware package.

  

• Tap "Initiating downgrade" once the package is downloaded.

  

• ReiBoot will automatically uninstall iOS 26/19 beta and install the stable iOS 18 version on your device. Once the process is complete, simply click Done.

  

Way 2. Downgrade iOS 26/19 Beta to 18 via IPSW Firmware Import [Manually]

If you prefer a manual approach, downgrading iOS 26/19 beta to iOS 18 via IPSW firmware import lets you download the official iOS 18 firmware file and install it using iTunes. This method gives you direct control over the process but can be more technical and requires careful steps to avoid errors. Here's how to downgrade from iOS 26/19 Beta to iOS 18 with IPSW firmware:

• Connect your iPhone/iPad to a computer with an original Apple cable. Open iTunes or Finder on a Mac. Then, tap "Trust" on your iPhone/iPad if asked.
• Head to the following IPSW firmware source website to download the firmware and select your iPhone/iPad model. Download the latest signed iOS 18 version:

ipsw.me



TheAppleWiki


• Save the ".ipsw" file without unzipping. Then, enter Recovery Mode on your iPhone/iPad:

Quickly press and release Volume Up, then Volume Down.

Press and hold the Side button until the recovery mode screen appears, then release.


• iTunes/Finder will show a message about a problem with the iPhone. Click "Restore".

• Select the downloaded IPSW file. Confirm and wait 10–30 minutes for the install.
• Set up your iPhone/iPad as new (best for performance).

Tips:

This method downloads the iOS firmware directly from the official website and then imports it into your iPhone using iTunes. However, it has some drawbacks: it requires using iTunes, which can be complicated, the success rate is relatively low, and the process is often complex and prone to errors.

Way 3. Downgrade iOS 26/19 Beta to 18 via BetaProfiles [Versions Limited]

Downgrading iOS 26/19 Beta to 18 via BetaProfiles only removes the Beta profile. So, your iPhone/iPad will return to the latest stable iOS 18 version once Apple releases it. It doesn't erase your data, but some Beta features might cause issues until the update.

Also, it only functions if Apple is still signing iOS 18, and you'll have to wait for the next public release. So, there's no instant downgrade. Follow the instructions below to downgrade iOS 26/19 Beta to 18 via BetaProfiles:

• Open "Finder" on Mac or "iTunes" on Windows. Then, connect your iPhone/iPad to your computer.
• Head to the "BetaProfiles" website. Next, select your iPhone/iPad model to download the "iOS profile."
• 
• Backup your iPhone/iPad before downgrading. Then, head to the folder with the backup. Open the most recent folder (starts with 0xxxxx...).
• Find and open "Info.plist" in a text editor. Look for "Product Version." Change the version number to 18.5, which is the latest iOS 18 version. Then, save the file.

• Head to "Settings" on your iPhone/iPad. Then, choose "[Your Name]." Tap "Find My." Click "Find My iPhone/iPad." Disable it

• In iTunes/Finder, hold "Option" (Mac) or "Alt." (Windows). Hit "Restore iPhone/iPad."

• Select the ".ipsw file" you downloaded earlier. Wait for the restore to finish. Then, follow the on-screen steps to restore or set up your device.

Note:

Downgrading from iOS 26/19 Beta to iOS 18 using beta profiles has major limitations. You can only revert to the latest iOS 18 Beta (if still signed), not the stable release, and Apple stops signing older versions quickly. Beta versions are often buggy, and downgrades may fail or cause issues like crashes or boot loops. A valid beta profile is also required, and full rollback to stable iOS still needs an IPSW restore.

Bouns Tips. How to Downgrade iOS 26/19 Beta to 18 Without Computer

Many users wonder if they can downgrade from iOS 26/19 Beta to iOS 18 without a computer. Unfortunately, because of how Apple manages firmware, downgrades usually require a computer and special software. There’s no official way to fully downgrade over the air once a beta is installed.

You can only remove the beta profile without a computer, but this won’t reinstall an older iOS version. It just stops future beta updates. Here’s how to remove the iOS 26/19 Beta profile on your iPhone or iPad without a computer:

• Head to "Settings" on your iPhone/iPad. Then, choose "General."
• Tap "VPN & Device Management." Remove the iOS 26/19 Beta profile. This stops future beta updates.

Note:

However, with this method, your iPhone/iPad won't switch back to iOS 18 right away, and you'll have to wait for the next official update. Also, if Apple stops signing iOS 18 or iOS 26/19 becomes the public release, you can't go back.

Part 4. People Also Ask About How to Downgrade iOS 26/19 Beta to 18

Q1. Why is it so hard to downgrade iOS?

Downgrading iOS is difficult because Apple stops signing older versions soon after updates. Even with the right file, you can’t install it if Apple no longer approves it. Betas modify system files, so going back usually requires wiping your device. Apple does this for security, limiting downgrade options unless you use risky methods like jailbreaking.

Q2. Can I jailbreak iOS 26/19 Beta?

There’s no public jailbreak for iOS 26/19 Beta and none expected soon. Jailbreaks take time, and betas are harder to crack due to bugs and changes. If one appears, it’ll likely work only on some devices and require reactivation after reboot. For now, jailbreakers should stick to iOS 15–16.5.1.

Q3. Can you downgrade iOS without iTunes?

Yes, but only sometimes. You can downgrade from iOS 26/19 Beta to iOS 18 if Apple is still signing it. Downgrading to stable iOS without iTunes is nearly impossible unless you use tools like Tenorshare ReiBoot, which can do it without data loss.

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