FIRMWARE DETAILS

iOS 3.1.3

Build: 7E18Feb 2, 2010Restore IPSW

Stable

View details

Filename: iPhone2,1_3.1.3_7E18_Restore.ipsw
File size: 305.1 MB
File type: Restore IPSW
Download host: secure-appldnld.apple.com
Link availability: Not verified
Source reports active
Last link check: Not checked
SHA-256: 8fb97807f4a1b8ec6febf1b9e6176876bf51930b1beb6d1a0a93240189bc1bc8
SHA-1: 8cb3775e62c6f72059a962bf891b4e145b965052
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 3GS iPhone2,1IPSW.me public API retrieval · Oct 20, 2026, 4:34 AM UTC

Unsigned

Signing is specific to the device and file. A signed build does not guarantee a downgrade or successful installation.

Source provenance

AppleDBhttps://api.appledb.dev/ios/iPhone%20OS%3B7E18.json ↗

MIT — copyright 2022 emiyl
Last imported: Oct 19, 2026, 10:55 PM UTC
Record fingerprint: 7ffb90fb6e083150966e5dbfd1d513c0

IPSW.mehttps://api.ipsw.me/v4/device/iPhone2%2C1?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: caeadb82037fd86c618209485fb87325