4.2.8 Firmware Download
4.2.8 firmware download — compatible with 1 devices, released Unknown, build 8E401. Download links direct to Apple servers, with signing status verification and SHA-256/SHA-1/MD5 checksum validation. This version is no longer signed, for downgrade reference only.
iPhone (1)
1 devices support this version
| Device | Identifier | Build | Size | Signing | Action |
|---|---|---|---|---|---|
| iPhone 4 (CDMA) | iPhone3,3 | 8E401 | 653 MB | Unsigned | Details → |