This firmware is not signed. This means you cannot restore to it in iTunes.
Release Date | 20 September 2021 |
Upload Date | 17 September 2021 |
File Name | iPhone_4.0_64bit_15.0_19A346_Restore.ipsw |
File Size | 4.98 GB |
SHA256sum | de78b0d436c23a5fbe87fc39feeda316821bf7aa5dba0ecfe723f5fc4e21622e |
MD5sum | 469a0eeeaa3d79eda30ab4f3d2e47fa2 |
SHA1sum | 1538dd0a7a50ae40285283de738478ac04a01e3a |
Identifier | iPhone8,4 |
cd ~/Downloads
.idevicerestore -e iPhone_4.0_64bit_15.0_19A346_Restore.ipsw
and press Enter.