FIRMWARE DETAILS

iOS 4.3.1

Build: 8G4Not reportedRestore IPSW

Stable

View details

Filename: iPhone2,1_4.3.1_8G4_Restore.ipsw
File size: 440.3 MB
File type: Restore IPSW
Download host: secure-appldnld.apple.com
Link availability: Not verified
Source did not report availability
Last link check: Not checked
SHA-256: 4492b1a28b3e60ee2f230cb11eeae2fa9fea9ebfde26d600cc6425e1bcf3e609
SHA-1: 6de986f2dbd16a65db122e7c54a70f31812d028a
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 3GS iPhone2,1IPSW.me public API retrieval · Oct 20, 2026, 6:34 AM UTC

Unsigned

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

Source provenance

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: 8422607b0dbff33e12dadc0e1b0b026c