Download iOS 5.1 (9B176) IPSW

iOS 5.1 is available as an IPSW file for 13 models. Find your device below to download it directly from Apple, copy the download link or verify the file with its SHA1 checksum.
  • Build 9B176
  • Type Release
  • Released
  • Status Unsigned
Release notes Security content

iPhone

3 files
DeviceIdentifierSizeStatus
iPhone 4 (CDMA)iPhone 4 (CDMA) iPhone3,3 830 MB Unsigned IPSW
iPhone 4 (GSM)iPhone 4 (GSM) iPhone3,1 822 MB Unsigned IPSW
iPhone 3GSiPhone 3GS iPhone2,1 720 MB Unsigned IPSW

iPad

8 files
DeviceIdentifierSizeStatus
iPad 2 Wi-Fi (Mid 2012)iPad 2 Wi-Fi (Mid 2012) iPad2,4 765 MB Unsigned IPSW
iPad (3rd generation) Wi-FiiPad (3rd generation) Wi-Fi iPad3,1 1.12 GB Unsigned IPSW
iPad (3rd generation) Wi-Fi + CellulariPad (3rd generation) Wi-Fi + Cellular iPad3,3 1.13 GB Unsigned IPSW
iPad (3rd generation) Wi-Fi + Cellular (VZ)iPad (3rd generation) Wi-Fi + Cellular (VZ) iPad3,2 1.13 GB Unsigned IPSW
iPad 2 Wi-FiiPad 2 Wi-Fi iPad2,1 764 MB Unsigned IPSW
iPad 2 Wi-Fi + 3G (CDMA)iPad 2 Wi-Fi + 3G (CDMA) iPad2,3 779 MB Unsigned IPSW
iPad 2 Wi-Fi + 3G (GSM)iPad 2 Wi-Fi + 3G (GSM) iPad2,2 773 MB Unsigned IPSW
iPadiPad iPad1,1 761 MB Unsigned IPSW

iPod touch

2 files
DeviceIdentifierSizeStatus
iPod touch (4th generation)iPod touch (4th generation) iPod4,1 786 MB Unsigned IPSW
iPod touch (3rd generation)iPod touch (3rd generation) iPod3,1 688 MB Unsigned IPSW

No device matches these filters.

How to install iOS 5.1 with an IPSW file

Download the file that matches your exact model, then connect your device to a computer. Open Finder on macOS or iTunes on Windows, hold Option (Mac) or Shift (Windows) while you click Restore, and select the IPSW file. Follow our restore guide for every step.

Only files marked as Signed can be installed today. See every other build on the iOS IPSW page.

Data from AppleDB, last updated .