Download iPhone OS 3.1.3 (7E18) IPSW

iPhone OS 3.1.3 is available as an IPSW file for 4 models. Find your device below to download it directly from Apple, copy the download link or verify the file with its SHA1 checksum.
  • Build 7E18
  • Type Release
  • Released
  • Status Unsigned
Security content

iPhone

3 files
DeviceIdentifierSizeStatus
iPhone 3GSiPhone 3GS iPhone2,1 305 MB Unsigned IPSW
iPhone 3GiPhone 3G iPhone1,2 239 MB Unsigned IPSW
iPhoneiPhone iPhone1,1 238 MB Unsigned IPSW

iPod touch

1 file
DeviceIdentifierSizeStatus
iPod touch (3rd generation)iPod touch (3rd generation) iPod3,1 296 MB Unsigned IPSW

No device matches these filters.

How to install iPhone OS 3.1.3 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 iPhone OS IPSW page.

Data from AppleDB, last updated .