IPSW · iOS
iOS 15.1.1 IPSW Download (19B81)
Build 19B81, released November 17, 2021 — restore images for 8 iPhones, straight from Apple's servers.
Choose your iPhone
8 devices. Each row is one file on Apple's CDN.
iPhone14,5 6.62 GBiPhone14,5_15.1.1_19B81_Restore.ipsw SHA-256 ade900107c1df6099ebcff65f9eb64103e7c4638c838ec2d08191464b1444e5a 
iPhone14,4 6.61 GBiPhone14,4_15.1.1_19B81_Restore.ipsw SHA-256 3c182424180806348c2d263b8e8e33437f4d2314778c06aee95544e4484e7495 
iPhone14,2 6.59 GBiPhone14,2_15.1.1_19B81_Restore.ipsw SHA-256 8166864ab3348c86f29ee2e5ff14b53c29cfd333341e89f622ac4a3fac10040c 
iPhone14,3 6.63 GBiPhone14,3_15.1.1_19B81_Restore.ipsw SHA-256 7a43071c6bfdfb2d8ab411774fde5b25bc552ae41225f46b952700eef01a5780 
iPhone13,1 6.59 GBiPhone13,1_15.1.1_19B81_Restore.ipsw SHA-256 b473ba0e2191bdd60224b097fd75ae76462c7e2c9dcc683572b31f8dbeed8548 
iPhone13,4 6.62 GBiPhone13,4_15.1.1_19B81_Restore.ipsw SHA-256 8681413bc9c89a96c2c18c3f722425969f9320d404168c7e06b5cece41fe3c15 
iPhone13,2 6.78 GBiPhone13,2,iPhone13,3_15.1.1_19B81_Restore.ipsw SHA-256 030027976b43f4d2d7bfe830b1abb36bdf82c706390789d8237afb249134c76a 
iPhone13,3 6.78 GBiPhone13,2,iPhone13,3_15.1.1_19B81_Restore.ipsw SHA-256 030027976b43f4d2d7bfe830b1abb36bdf82c706390789d8237afb249134c76a No device matches.
19B81How to install iOS 15.1.1 from the IPSW
Four steps, and the one that matters most is the first.
Back up first
A restore erases the device. Make an archived backup in Finder or the Apple Devices app — an iCloud backup taken on a newer version cannot be restored onto an older one. Our backup guide covers the difference.
Get the file for your exact model
Check Settings → General → About → Model Name, then download the IPSW for that device. The download shows the file size; compare it with the SHA-256 under Details if you want to be certain the file is intact.
Restore in Finder or Apple Devices
Connect with a cable, select the device, then hold Option (Mac) or Shift (Windows) and click Restore to choose the .ipsw. Update keeps your data but only works upward; Restore erases and is how you downgrade.
Set up or restore your backup
After the restore the device starts fresh. Restore the backup you made — only if it came from the same or an older version than the one you just installed.
Questions? Answers.
Can I restore iOS 15.1.1 today?
Not at the moment — Apple has stopped signing 19B81, so a restore will be rejected at the final step. The files remain here for reference and for signed re-releases.
Which is the right file for my device?
Match the identifier in Settings → General → About (or under the model's name here) against the one on each row. Wi-Fi and Cellular iPads share a file; different generations never do. Restoring the wrong device's IPSW simply fails — it cannot damage the device.
What does "signed" mean?
Apple's servers must approve a firmware before a device will accept it, and Apple only approves the builds it is currently shipping. A signed file can be restored today; an unsigned one is rejected at the end of the process, however you obtained it. Signing status changes without notice, usually within days of a newer release, which is why this catalogue rechecks it automatically.
Will I lose my data?
A Restore erases the device — that is what makes a downgrade possible. An Update with an IPSW keeps your data, but only when moving to a newer version. Either way, make an archived backup on a computer first; an iCloud backup taken on a newer version will not restore onto an older one.