Download iOS 15.1.1 (19B81) for iPhone 12 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 | iPhone13,4 |
|---|---|
| iOS Version | 15.1.1 |
| Release Date | 2021-11-17 |
| Update Date | 2021-11-12 |
| Sha1sum |
c2cb8f4c988a0525655b614681b284beb948d1c5
|
| Sha256sum |
8681413bc9c89a96c2c18c3f722425969f9320d404168c7e06b5cece41fe3c15
|
| md5sum |
58bd04a20e4edd5e8ae6e109072454ac
|
| Size | 6.17 GB |
| FileName |
iPhone13,4_15.1.1_19B81_Restore.ipsw
|
| Status |
|
Release Notes
It should be noted that these are the official release notes for the from Apple
iOS 15.1.1 improves call drop performance on iPhone 12 and iPhone 13 models.