iPhone 7 (GSM)
Unsigned iOS

iOS 14.8 (18H17)

iPhone 7 (GSM)

Other Signed iOS Versions
iOS 15.8.7 Signed 19H411

iOS 14.8 Release Notes

This update provides important security updates and is recommended for all users.

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

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

How to Restore iOS 14.8 IPSW

🖥

iTunes (Windows / macOS Mojave and older) & Finder (macOS Catalina+)

  1. Download the iPhone_4.7_P3_14.8_18H17_Restore.ipsw file to your computer.
  2. Connect your iPhone 7 (GSM) to your computer with a USB cable.
  3. Open Finder (macOS Catalina+) or iTunes (Windows / older macOS) and select your device.
  4. To Update (keeps data): hold Option (Mac) or Shift (Windows) and click Check for Update.
  5. To Restore (erases data): hold Option (Mac) or Shift (Windows) and click Restore iPhone/iPad.
  6. Navigate to and select the downloaded .ipsw file, then confirm.
  7. Wait for the process to complete — do not disconnect the device.
⚠️ Note: This firmware is no longer signed by Apple. iTunes/Finder may reject the restore. Use a tool like futurerestore if you have saved blobs.
⌨️

idevicerestore (Command Line)

An open-source command-line tool that restores IPSW files without needing iTunes. Useful for advanced users, automation, and custom restore workflows.

  1. Install via Homebrew: brew install idevicerestore
  2. Connect your device and put it into DFU mode.
  3. Run the restore command:
idevicerestore -t iPhone_4.7_P3_14.8_18H17_Restore.ipsw
Common flags:
-eErase restore (factory reset) -uUpdate restore (keep data) -dEnable debug output -nDry-run — don't actually restore
🔓

futurerestore (Saved Blobs / Downgrade)

futurerestore allows restoring to unsigned firmware like this one when you have saved APTickets (blobs) from a tool like TSSSaver or shsh.host.

  1. Download futurerestore from github.com/futurerestore/futurerestore.
  2. Ensure you have a saved .shsh2 blob for iOS 14.8 (18H17) on your iPhone 7 (GSM).
  3. Put your device into DFU mode and run:
futurerestore -t your_blob.shsh2 --latest-sep --latest-baseband iPhone_4.7_P3_14.8_18H17_Restore.ipsw
⛔ Warning: Using --latest-sep requires the latest SEP to be compatible with iOS 14.8. Always verify compatibility before restoring to avoid a bricked device.
📲

Entering DFU Mode

DFU (Device Firmware Update) mode is required for most manual restores. The button combination varies by device:

iPhone 8 / X and later / iPad with Face ID
Press & release Volume Up → press & release Volume Down → hold Side button until screen goes black → hold Side + Volume Down for 5 s → release Side but keep Volume Down for 10 s.
iPhone 7 / 7 Plus
Hold Side + Volume Down for 8 s → release Side but keep Volume Down for 10 s.
iPhone 6s and earlier / iPad with Home button
Hold Home + Sleep/Wake for 8 s → release Sleep/Wake but keep Home for 10 s.

💡 Tip: In DFU mode the screen stays completely black. If you see the Apple logo or a "Connect to iTunes" screen, you entered Recovery mode instead — try again.

iPhone_4.7_P3_14.8_18H17_Restore.ipsw
Device
iPhone 7 (GSM)
Identifier
iPhone9,3
OS
iOS
Version
14.8
Build
18H17
Release Date
2021-09-13
Upload Date
2021-09-10
Size
4.70 GB
Status
Unsigned
SHA1
c9f684a45241ce37ba74196b5740d60d08586b26
SHA256
a6159fafbc7c0bf7a51a00c07e1ef646bcc3f3b1af7e486bb8d6f215f6003850
MD5
3cc8124f213376ba719c24316d10e6e6
⇓ Download IPSW (4.70 GB)