IPSW Downloads

iOS 15.1 - 19B74 for iPhone 8

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

Release Date25 October 2021
Upload Date15 October 2021
File NameiPhone_4.7_P3_15.1_19B74_Restore.ipsw
File Size5.34 GB
SHA256sum16a2f075aae65cde99020bde4ec190eaed078071f1c205f93f58b739814fca8d
MD5sum3545ac9ffa7536d3f86691f549262845
SHA1sum06044a375ed2e4d32b39f4fd8d9c8b20e3c80422
IdentifieriPhone10,4

Installation Instructions

Windows

  1. Install the latest version of iTunes from the Microsoft Store.
  2. Connect your iPhone 8 to your PC.
  3. Open iTunes and navigate to your iPhone 8.
  4. Hold the Shift key and click "Restore".
  5. Select the iPhone_4.7_P3_15.1_19B74_Restore.ipsw file you downloaded.
  6. Wait for the restore to complete and for your iPhone 8 to reboot.

macOS

  1. Connect your iPhone 8 to your Mac.
  2. Navigate to your iPhone 8 in Finder.
  3. Hold the Option or Alt key and click "Restore".
  4. Select the iPhone_4.7_P3_15.1_19B74_Restore.ipsw file you downloaded.
  5. Wait for the restore to complete and for your iPhone 8 to reboot.

Linux

  1. Install idevicerestore.
  2. Connect your iPhone 8 to your PC.
  3. Open a terminal and navigate to the IPSW file you downloaded, e.g., cd ~/Downloads.
  4. To perform a full erase restore, type idevicerestore -e iPhone_4.7_P3_15.1_19B74_Restore.ipsw and press Enter.
  5. Wait for the restore to complete and for your iPhone 8 to reboot.