✗ This firmware is not signed. This means you cannot restore to it in Finder, the Apple Devices app, iTunes, or idevicerestore.
| Release Date | January 19, 2016 |
|---|---|
| Upload Date | January 12, 2016 |
| Filename | iPhone4,1_9.2.1_13D15_Restore.ipsw |
| Filesize | 1.5 GiB |
| SHA256sum | 40a6100b6697dead0d60d2faf2260be304327fd7bcba78abed591aa03b3f469e |
| MD5sum | f43df8b54efb8808e65cedd7239c021d |
| SHA1sum | b6bd61a4ddb78bc65edc7d409de74bd6aa573e0a |
| Identifier | iPhone4,1 |
iOS 9.2.1
This update contains security updates and bug fixes including a fix for an issue that could prevent the completion of app installation when using an MDM server.
For information on the security content of this update, please visit this website: