The iPhone 3G was introduced in 2008, shipped in 8 GB and 16 GB configurations.
Device facts (year, capacities, colours) from Apple Support. Capacities and colours can vary by model and region.
iOS 4.2.1
- Identifier
- iPhone1,2
- Model Number
- A1324, A1241
- BuildID
- 8C148
- Release Date
- November 18, 2010
- Filesize
- 322.89 MB
- Filename
- iPhone1,2_4.2.1_8C148_Restore.ipsw
- SHA256
- 98e5969c3baed660c9a26e94cd7ed4b3cdb7175900f448bcc2223bf885835ce0
- SHA1
- d2ed58586e8ca2153f2e2ec585bba8afc5173378
- MD5
- 8b1657935408a1638b69740b282f62b3
- Download URL
-
This page covers everything Apple has published for the iPhone 3G (device identifier iPhone1,2).
Apple sells that device under several model numbers — A1324 and A1241 — which cover its regional and connectivity variants, and the firmware on this page works on all of them.
Before downloading, verify this is the correct device model:
- Go to Settings → General → About on your device
- Check that Model Number matches: A1324 or A1241
- Or verify that Model Name is: iPhone 3G
Make sure you select the correct model to avoid installation errors
Apple's firmware list for the iPhone 3G starts with iOS 2.0 (Jul 9, 2008) and currently ends with iOS 4.2.1 (Nov 19, 2010).
That is 16 releases in total, spanning 2 years 4 months between the first and the most recent build.
iOS 4.2.1 is still being signed by Apple, so it can be restored, reinstalled, or updated to with Finder, iTunes, or the Apple Devices app right away.
Every build Apple has published for this device is listed below with its original Apple download link, build ID, release date, and checksums, so an older release can still be verified or archived after Apple stops signing it.
Across that history the device has received 3 major iOS versions: iOS 2 (6 releases) , iOS 3 (5 releases) and iOS 4 (5 releases) .