Download iOS 15.1 (19B74) for iPhone 13 Pro Max

You will have to note that you can only restore signed IPSW firmware files using iTunes or 3utools.

❌ This IPSW firmware is not being Signed by Apple

Firmware Identifier iPhone14,3
iOS Version 15.1
Release Date 2021-10-25
Update Date 2021-10-15
Sha1sum
5cee8b9c87a29770d024d5d52b33cdb5084e3a9a
Sha256sum
8d91dbc5091ea6e31953141822cae6c52c7941cd9c6f33a735fc0e3630ba9087
md5sum
b1717c0d840e1901f63aaef175adb424
Size 6.18 GB
FileName
iPhone14,3_15.1_19B74_Restore.ipsw
Status

Download IPSW (6.18GB) Check device info
Release Notes

It should be noted that these are the official release notes for the from Apple

SharePlay

Camera

Apple Wallet

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This release also fixes the following issues:

For information on the security content of Apple software updates, please visit this website:

https://support.apple.com/kb/HT201222