This firmware is not signed. This means you cannot restore to it in iTunes.
Release Date | 14 March 2022 |
Upload Date | 01 March 2022 |
File Name | AudioAccessory5,1_15.4_19L440_Restore.ipsw |
File Size | 2.48 GB |
SHA256sum | 619646995526341c113c63de56d5c06bb99d6ddef4c78bd8d4b211ac776aa32b |
MD5sum | a27bb1c95fbf951ee4edd0e6a5f73cc1 |
SHA1sum | f9671e539a3caa3e74d621b004fe2da8e7aae424 |
Identifier | AudioAccessory5,1 |
cd ~/Downloads
.idevicerestore -e AudioAccessory5,1_15.4_19L440_Restore.ipsw
and press Enter.