Choose an IPSW for iOS 4.2.1

1 Choose a product
2 Choose a device
3 Choose a version
4 Download

Signed IPSW files can be restored via Finder, the Apple Devices app, iTunes, or idevicerestore. Unsigned IPSWs cannot currently be restored to.

Signed IPSWs

✓iPhone 3GiOS 4.2.1 (8C148)November 18, 2010323 MiBiPhone1,2_4.2.1_8C148_Restore.ipsw
✓iPod touch 2GiOS 4.2.1 (8C148)November 18, 2010347 MiBiPod2,1_4.2.1_8C148_Restore.ipsw

Unsigned IPSWs

✗iPhone 3G[S]iOS 4.2.1 (8C148a)November 21, 2010401 MiBiPhone2,1_4.2.1_8C148a_Restore.ipsw
✗iPhone 4 (GSM)iOS 4.2.1 (8C148)November 18, 2010624 MiBiPhone3,1_4.2.1_8C148_Restore.ipsw
✗iPod touch 3iOS 4.2.1 (8C148)November 18, 2010389 MiBiPod3,1_4.2.1_8C148_Restore.ipsw
✗iPod touch 4iOS 4.2.1 (8C148)November 18, 2010609 MiBiPod4,1_4.2.1_8C148_Restore.ipsw
✗iPad 1iOS 4.2.1 (8C148)November 18, 2010551 MiBiPad1,1_4.2.1_8C148_Restore.ipsw
✗Apple TV 2GiOS 4.2.1 (8C154)December 13, 2010267 MiBAppleTV2,1_4.2.1_8C154_Restore.ipsw
Bluesky Mastodon r/jailbreak Twitter