✗ This firmware is not signed. This means you cannot restore to it in iTunes.
| Upload Date | 21st November 2010 |
|---|---|
| Filename | iPhone2,1_4.2.1_8C148a_Restore.ipsw |
| Filesize | 421 MB |
| SHA256sum | 09f3617fcf3e419e12c4a3c62f1fe0ab3909d0573a00937584124f869a7df15d |
| MD5sum | d688d2d48c8b054367adef8e7ab4f5ea |
| SHA1sum | 2787bb9fbf18594279d05682e6fd16d2b9612a2a |
| Identifier | iPhone2,1 |