This firmware is not signed. This means you cannot restore to it in iTunes.
Release Date | 31 March 2022 |
Upload Date | 28 March 2022 |
File Name | iPhone_4.0_64bit_15.4.1_19E258_Restore.ipsw |
File Size | 4.86 GB |
SHA256sum | 73a5eb08698c2ce1eb6499824800c09c855ad1cb53e7f8028c4410ee72599b93 |
MD5sum | 3368eb0caa4da6ea5c74af99d75504b4 |
SHA1sum | bcb98612c204172a1b1a7c12577ffcdf38e0ead0 |
Identifier | iPhone8,4 |
cd ~/Downloads
.idevicerestore -e iPhone_4.0_64bit_15.4.1_19E258_Restore.ipsw
and press Enter.