iPhone 3GS · iPhone2,1

iPhone 3GS · iOS 3.1.3

7E18Unsigned

Catalog data · Last updated: Oct 23, 2026, 8:08 PM UTC

Restore IPSW for iPhone 3GS: iOS 3.1.3, build 7E18.

Firmware information

Version: iOS 3.1.3
Build: 7E18
IPSW: Restore IPSW
Size: 0.28 GB
Release date: Not available
File name: iPhone2,1_3.1.3_7E18_Restore.ipsw
Download host: secure-appldnld.apple.com

IPSW download

Check the model and signing status before downloading.

Download IPSW

Download hostsecure-appldnld.apple.comiPhone2,1_3.1.3_7E18_Restore.ipsw

Back up before you restore. A restore can erase the data on the device. The identifier has to match, and a file you can download may still be rejected for restore.

Checksum

SHA-2568fb97807f4a1b8ec6febf1b9e6176876bf51930b1beb6d1a0a93240189bc1bc8

SHA-18cb3775e62c6f72059a962bf891b4e145b965052

MD54117e4b22565e69205a84e9eeef0583e