FIRMWARE DETAILS

iOS 4.2.1

Build: 8C148Not reportedRestore IPSW

Stable

View details

Filename: iPhone1,2_4.2.1_8C148_Restore.ipsw
File size: 338.6 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: 98e5969c3baed660c9a26e94cd7ed4b3cdb7175900f448bcc2223bf885835ce0
SHA-1: d2ed58586e8ca2153f2e2ec585bba8afc5173378
Required starting builds: Not reported
Board restrictions: Not reported

Compatible hardware (1)

iPhone 3G iPhone1,2IPSW.me public API retrieval · Oct 20, 2026, 6:34 AM UTC

Signed

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/iPhone1%2C2?type=ipsw ↗

Public API; no blanket open-data license established
Last imported: Oct 19, 2026, 6:20 PM UTC
Record fingerprint: 9b0dc2d9ca326bb16e644bc2abe7270c