iPhone 3G · iPhone1,2

iPhone 3G · iOS 4.0.1

8A306Unsigned

Catalog data · Last updated: Oct 23, 2026, 9:07 PM UTC

Restore IPSW for iPhone 3G: iOS 4.0.1, build 8A306.

Firmware information

Version: iOS 4.0.1
Build: 8A306
IPSW: Restore IPSW
Size: 0.3 GB
Release date: Not available
File name: iPhone1,2_4.0.1_8A306_Restore.ipsw
Download host: secure-appldnld.apple.com

IPSW download

Check the model and signing status before downloading.

Download IPSW

Download hostsecure-appldnld.apple.comiPhone1,2_4.0.1_8A306_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-2566d3f2c695229d03b4fe9297c681ffb509eaf5f1d4a316af893d15f674f330a52

SHA-1940bd2b36c646f6673419eab661ac1f13248e592

MD58a952dbd03fa5e85da1a31092c651a25