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iPhone 8 Plus (GSM)

iOS 13.3.1 (17D50) for iPhone 8 Plus (GSM)

✗ This firmware is not signed. This means you cannot restore to it in iTunes.

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Download (4.19 GB)

✗ This firmware is not signed. This means you cannot restore to it in iTunes. The instructions below are included for reference only.

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Plug your iPhone 8 Plus (GSM) in to your PC.
  3. Open iTunes, and navigate to your iPhone 8 Plus (GSM).
  4. Hold the Shift key on your keyboard, and press "Restore".
  5. Select the iPhone_5.5_P3_13.3.1_17D50_Restore.ipsw file that you downloaded.
  6. Wait for the restore to complete, and the iPhone 8 Plus (GSM) to reboot.

macOS

  1. Plug your iPhone 8 Plus (GSM) in to your Mac.
  2. Navigate to your iPhone 8 Plus (GSM) in Finder.
  3. Hold the Option or Alt key on your keyboard, and press "Restore".
  4. Select the iPhone_5.5_P3_13.3.1_17D50_Restore.ipsw file that you downloaded.
  5. Wait for the restore to complete, and the iPhone 8 Plus (GSM) to reboot.

Linux

  1. Install idevicerestore.
  2. Plug your iPhone 8 Plus (GSM) in to your PC.
  3. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  4. To perform a full erase restore, type idevicerestore -e iPhone_5.5_P3_13.3.1_17D50_Restore.ipsw and press enter.
  5. Wait for the restore to complete, and the iPhone 8 Plus (GSM) to reboot.

Windows

  1. Open PowerShell, and navigate to the IPSW file that you downloaded, e.g. cd Downloads
  2. Type Get-FileHash iPhone_5.5_P3_13.3.1_17D50_Restore.ipsw -Algorithm SHA1
  3. The output of the command should match the following checksum: 52df6abf22e27c9318be0f95229af2fbae70b649. If it doesn't, you may need to redownload the file.

macOS

  1. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  2. Type openssl sha1 iPhone_5.5_P3_13.3.1_17D50_Restore.ipsw
  3. The output of the command should match the following checksum: 52df6abf22e27c9318be0f95229af2fbae70b649. If it doesn't, you may need to redownload the file.

Linux

  1. Open a terminal, and navigate to the IPSW file that you downloaded, e.g. cd ~/Downloads
  2. Type openssl sha1 iPhone_5.5_P3_13.3.1_17D50_Restore.ipsw
  3. The output of the command should match the following checksum: 52df6abf22e27c9318be0f95229af2fbae70b649. If it doesn't, you may need to redownload the file.

Checksums

SHA256sum 157b0f93ffe03b457408a6c2149370a44bd5f7eb7db0ac2939f5b56b8382021a
MD5sum f523700a1ddfd6baa800a34b0f32825f
SHA1sum 52df6abf22e27c9318be0f95229af2fbae70b649
Please note, the documentation below is supplied from Apple's update servers. We don't modify the contents of this documentation.

iOS 13.3.1 includes bug fixes and improvements. This update:

  • Fixes an issue in Communication Limits that could allow a contact to be added without entering the Screen Time passcode

  • Adds a setting to control the use of location services by the U1 Ultra Wideband chip

  • Addresses an issue that could cause a momentary delay before editing a Deep Fusion photo taken on iPhone 11 or iPhone 11 Pro

  • Resolves an issue with Mail that could cause remote images to load even when the “Load Remote Images” setting is disabled

  • Fixes an issue that could cause multiple undo dialogs to appear in Mail

  • Addresses an issue where FaceTime could use the rear facing ultra-wide camera instead of the wide camera

  • Resolves an issue where push notifications could fail to be delivered over Wi-Fi

  • Addresses a CarPlay issue that could cause distorted sound when making phone calls in certain vehicles

  • Introduces support for Indian English Siri voices for HomePod

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222

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