✗ This firmware is not signed. This means you cannot restore to it in iTunes.
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Download (5.97 GB)✗ This firmware is not signed. This means you cannot restore to it in iTunes. The instructions below are included for reference only.
iPhone_5.5_P3_15.3_19D50_Restore.ipsw file that you downloaded.iPhone_5.5_P3_15.3_19D50_Restore.ipsw file that you downloaded.cd ~/Downloadsidevicerestore -e iPhone_5.5_P3_15.3_19D50_Restore.ipsw and press enter.cd DownloadsGet-FileHash iPhone_5.5_P3_15.3_19D50_Restore.ipsw -Algorithm SHA1f939d769b5a0cd8d89fceafbc33aeae17cb2ff5d. If it doesn't, you may need to redownload the file.cd ~/Downloadsopenssl sha1 iPhone_5.5_P3_15.3_19D50_Restore.ipswf939d769b5a0cd8d89fceafbc33aeae17cb2ff5d. If it doesn't, you may need to redownload the file.cd ~/Downloadsopenssl sha1 iPhone_5.5_P3_15.3_19D50_Restore.ipswf939d769b5a0cd8d89fceafbc33aeae17cb2ff5d. If it doesn't, you may need to redownload the file.| SHA256sum | d0a7964e074bf70eb83310af8d2dd8fcd42c57c8cfe7bab47a42e71bd3cd83c1 |
|---|---|
| MD5sum | 1aa8c6172dd45d98e76027106fdb6b2e |
| SHA1sum | f939d769b5a0cd8d89fceafbc33aeae17cb2ff5d |
iOS 15.3 includes bug fixes and security updates for your iPhone and is recommended for all users.
For information on the security content of Apple software updates, please visit this website:
https://support.apple.com/kb/HT201222