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How to Downgrade iOS 18 to iOS 17

June 15, 20265 min read
If you are experiencing bugs or battery drain on iOS 18, you may want to downgrade back to a stable version of iOS 17. Apple only allows downgrades to firmware versions that are currently "signed." Follow this guide to successfully restore your iPhone.

Step-by-Step Instructions

1. Check Signing Status

Visit the IPSWDownload device page for your iPhone model and ensure the iOS 17 version you want to install is marked as "Signed" (indicated by a green checkmark).

2. Download the IPSW File

Download the correct iOS 17 IPSW file for your specific iPhone model to your Mac or PC.

3. Backup Your Device

Before proceeding, back up your iPhone to iCloud or your computer. Note that iOS 18 backups cannot be restored to a device running iOS 17.

4. Connect and Enter Recovery Mode

Connect your iPhone to your computer using a USB cable. Open Finder (Mac) or iTunes (Windows). Follow the specific button combination for your iPhone model to enter Recovery Mode.

5. Restore Using the IPSW

In Finder or iTunes, hold the Option key (Mac) or Shift key (Windows) and click the "Restore iPhone..." button. Select the IPSW file you downloaded in step 2. Wait for the process to complete.

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