IPSW · iOS
iOS 17.1.1 IPSW Download (21B91)
Build 21B91, released November 7, 2023 — restore images for 25 iPhones, straight from Apple's servers.
Choose your iPhone
25 devices. Each row is one file on Apple's CDN.
Unsigned
iPhone15,4 8.02 GB
FilenameiPhone15,4_17.1.1_21B91_Restore.ipsw
SHA-256da2a9e331cc10d9cd333cb2511d1d38b68488826171e1c0c4277a6c1f2e37818
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96757/63639235-4D14-4C10-BB2A-766FF8857FC3/iPhone15,4_17.1.1_21B91_Restore.ipsw
Size8,019,814,972 bytes (8.02 GB)
Unsigned
iPhone15,5 8.02 GB
FilenameiPhone15,5_17.1.1_21B91_Restore.ipsw
SHA-2565ad53006572f4fd4128a9e561ab93eb0632b0d927f64c69bd67c61b813e43f96
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96473/6006A742-B347-4DFF-86AC-0D9A886454CA/iPhone15,5_17.1.1_21B91_Restore.ipsw
Size8,020,275,503 bytes (8.02 GB)
Unsigned
iPhone16,1 8.21 GB
FilenameiPhone16,1_17.1.1_21B91_Restore.ipsw
SHA-2563ba9cdb9213e8a46c085f48728967cfc723fdaf7946105d99395cd45972e8fd9
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-95580/75AE7B75-5B75-44DF-AF19-87C91EF554B2/iPhone16,1_17.1.1_21B91_Restore.ipsw
Size8,205,005,758 bytes (8.21 GB)
Unsigned
iPhone16,2 8.21 GB
FilenameiPhone16,2_17.1.1_21B91_Restore.ipsw
SHA-256a60eca60851878cc13a7f01849ee4a634ed8b06a94a52fdbaccfdd1c7c615ff6
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-95768/9A073385-1679-456C-95E4-6E4A9850C534/iPhone16,2_17.1.1_21B91_Restore.ipsw
Size8,207,351,025 bytes (8.21 GB)
Unsigned
iPhone14,8 7.84 GB
FilenameiPhone14,8_17.1.1_21B91_Restore.ipsw
SHA-256f33186b1433e67750a4efa387b12bcb4af91c460cbc09e32eed3929286407b79
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96317/52ACA6AA-785C-4BA2-9CB3-7E1569BB6D5F/iPhone14,8_17.1.1_21B91_Restore.ipsw
Size7,835,555,979 bytes (7.84 GB)
Unsigned
iPhone14,7 7.84 GB
FilenameiPhone14,7_17.1.1_21B91_Restore.ipsw
SHA-2569b10f85bba7378a1802bcd84548f8045e461c11b8f1b0acb10b9e860c8e15e22
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96341/D5F8E6F0-EF83-4006-BEF8-54D4A2BD57D8/iPhone14,7_17.1.1_21B91_Restore.ipsw
Size7,835,995,586 bytes (7.84 GB)
Unsigned
iPhone15,2 8.00 GB
FilenameiPhone15,2_17.1.1_21B91_Restore.ipsw
SHA-25681f7688000bc8c768e9ebbbdd06ceb2b1b2f2da2ccbcc33e8d9ef3f32cbda393
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96132/3FC00650-4C13-4B65-BACD-002180B5513F/iPhone15,2_17.1.1_21B91_Restore.ipsw
Size7,996,682,781 bytes (8.00 GB)
Unsigned
iPhone15,3 7.98 GB
FilenameiPhone15,3_17.1.1_21B91_Restore.ipsw
SHA-2565a8709c185be5cc32169e4745a9a1badf7975a996637e1d64371b23f9ee14fff
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-95987/9468E126-F17F-43D0-AB6F-519E2C0863F0/iPhone15,3_17.1.1_21B91_Restore.ipsw
Size7,976,103,658 bytes (7.98 GB)
Unsigned
iPhone14,6 7.52 GB
FilenameiPhone14,6_17.1.1_21B91_Restore.ipsw
SHA-25633e4fde2508227976ff8675f2815d5c8ed8e856556ab3eb34df09fe67774fd17
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96052/15C4DD1E-8B12-460F-89E1-F83EB405B996/iPhone14,6_17.1.1_21B91_Restore.ipsw
Size7,516,871,936 bytes (7.52 GB)
Unsigned
iPhone14,5 7.77 GB
FilenameiPhone14,5_17.1.1_21B91_Restore.ipsw
SHA-256e72948e46b342d1e7a272551274fa0ed3c81e78d75651d0a52e6a9fc5f179089
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-95906/34776098-3978-4349-BAA1-2A88E8133188/iPhone14,5_17.1.1_21B91_Restore.ipsw
Size7,767,295,976 bytes (7.77 GB)
Unsigned
iPhone14,4 7.79 GB
FilenameiPhone14,4_17.1.1_21B91_Restore.ipsw
SHA-2560229dcd3439ff12b336d12ab586c1deec84455e4f02f1e2e9caf7b5358cd9ae5
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96350/F5F3F5DF-1222-4F69-8F75-DE1741AD7B89/iPhone14,4_17.1.1_21B91_Restore.ipsw
Size7,790,975,367 bytes (7.79 GB)
Unsigned
iPhone14,2 7.89 GB
FilenameiPhone14,2_17.1.1_21B91_Restore.ipsw
SHA-256a3c2a30ca3b11f312515f77160c99767ef3d8e07e72eea8c087d53f466e32919
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96762/FD5E1B54-D35B-4793-A0A0-D04583134FD1/iPhone14,2_17.1.1_21B91_Restore.ipsw
Size7,889,927,252 bytes (7.89 GB)
Unsigned
iPhone14,3 7.89 GB
FilenameiPhone14,3_17.1.1_21B91_Restore.ipsw
SHA-25679dd1d6de4111ee9ce6b1b2801a37380a54e4984399631380bcfd229f99184a1
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96561/452F6739-8A86-4FD6-AA0A-D4A360F915F4/iPhone14,3_17.1.1_21B91_Restore.ipsw
Size7,889,330,269 bytes (7.89 GB)
Unsigned
iPhone13,1 7.69 GB
FilenameiPhone13,1_17.1.1_21B91_Restore.ipsw
SHA-256ee0c902bb0f09d148a1907812509f10f94c4d1868bc9ba9f0eab974173568634
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-95767/BEA01384-AA2F-4026-B52B-2F7770F3EDB5/iPhone13,1_17.1.1_21B91_Restore.ipsw
Size7,686,398,674 bytes (7.69 GB)
Unsigned
iPhone13,4 7.82 GB
FilenameiPhone13,4_17.1.1_21B91_Restore.ipsw
SHA-2566d0fdc965d5ede25baaae36a03914109520225e617c8ae50fd461f293135fa34
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-95574/C5A12573-449D-4031-B17A-7402E7320911/iPhone13,4_17.1.1_21B91_Restore.ipsw
Size7,819,161,205 bytes (7.82 GB)
Unsigned
iPhone13,2 7.86 GB
FilenameiPhone13,2,iPhone13,3_17.1.1_21B91_Restore.ipsw
SHA-25686f640f34d4f6a02d35c903b44bcd85e08520532c9966cb910e14131bffa6e02
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-95761/F30C9516-ED4A-45C6-BA60-E16CDB60F0F2/iPhone13,2,iPhone13,3_17.1.1_21B91_Restore.ipsw
Size7,861,350,293 bytes (7.86 GB)
Unsigned
iPhone13,3 7.86 GB
FilenameiPhone13,2,iPhone13,3_17.1.1_21B91_Restore.ipsw
SHA-25686f640f34d4f6a02d35c903b44bcd85e08520532c9966cb910e14131bffa6e02
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-95761/F30C9516-ED4A-45C6-BA60-E16CDB60F0F2/iPhone13,2,iPhone13,3_17.1.1_21B91_Restore.ipsw
Size7,861,350,293 bytes (7.86 GB)
Unsigned
iPhone12,8 7.29 GB
FilenameiPhone12,8_17.1.1_21B91_Restore.ipsw
SHA-256828e46146401c150ae7b28c9036cc6890f344debb54d4c68206bf9f0b9bc2d39
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96610/0343030F-BCF7-49DD-ACE2-549BC0A900CB/iPhone12,8_17.1.1_21B91_Restore.ipsw
Size7,291,206,428 bytes (7.29 GB)
Unsigned
iPhone12,1 7.32 GB
FilenameiPhone12,1_17.1.1_21B91_Restore.ipsw
SHA-2562fdbdda2f1ebd49878f7735e6bdc48ec694753bb6aff6b271dd666705698aa29
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96403/AD29BAAB-167F-411E-B43C-FF13FD6BFDC5/iPhone12,1_17.1.1_21B91_Restore.ipsw
Size7,317,182,492 bytes (7.32 GB)
Unsigned
iPhone12,3 7.46 GB
FilenameiPhone12,3,iPhone12,5_17.1.1_21B91_Restore.ipsw
SHA-256d70c4ff6136c01103cbc307e138cbf272755533a3e894e28dd6b0c05c9fded3c
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96120/0969731E-74CC-41DA-B388-9787C631DF92/iPhone12,3,iPhone12,5_17.1.1_21B91_Restore.ipsw
Size7,462,251,354 bytes (7.46 GB)
Unsigned
iPhone12,5 7.46 GB
FilenameiPhone12,3,iPhone12,5_17.1.1_21B91_Restore.ipsw
SHA-256d70c4ff6136c01103cbc307e138cbf272755533a3e894e28dd6b0c05c9fded3c
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96120/0969731E-74CC-41DA-B388-9787C631DF92/iPhone12,3,iPhone12,5_17.1.1_21B91_Restore.ipsw
Size7,462,251,354 bytes (7.46 GB)
Unsigned
iPhone11,8 7.43 GB
FilenameiPhone11,8_17.1.1_21B91_Restore.ipsw
SHA-256c140e3828b5838dc9dcdea293ed666098f487b1ed3e6e8d6e23090874e7a37bc
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96336/4DC79AD0-7AD4-45B7-ABD7-8D35504E4C8B/iPhone11,8_17.1.1_21B91_Restore.ipsw
Size7,433,187,385 bytes (7.43 GB)
Unsigned
iPhone11,2 7.61 GB
FilenameiPhone11,2,iPhone11,4,iPhone11,6_17.1.1_21B91_Restore.ipsw
SHA-256139a697d11b11ee2ebf9c2e8551aa817a49ad71f7df524d78651476079150736
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96340/2DB94E54-F7F9-4FB5-998B-D7FEB2EE1836/iPhone11,2,iPhone11,4,iPhone11,6_17.1.1_21B91_Restore.ipsw
Size7,612,966,861 bytes (7.61 GB)
Unsigned
iPhone11,6 7.61 GB
FilenameiPhone11,2,iPhone11,4,iPhone11,6_17.1.1_21B91_Restore.ipsw
SHA-256139a697d11b11ee2ebf9c2e8551aa817a49ad71f7df524d78651476079150736
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96340/2DB94E54-F7F9-4FB5-998B-D7FEB2EE1836/iPhone11,2,iPhone11,4,iPhone11,6_17.1.1_21B91_Restore.ipsw
Size7,612,966,861 bytes (7.61 GB)
Unsigned
iPhone11,4 7.61 GB
FilenameiPhone11,2,iPhone11,4,iPhone11,6_17.1.1_21B91_Restore.ipsw
SHA-256139a697d11b11ee2ebf9c2e8551aa817a49ad71f7df524d78651476079150736
Direct URLhttps://updates.cdn-apple.com/2023FallFCS/fullrestores/042-96340/2DB94E54-F7F9-4FB5-998B-D7FEB2EE1836/iPhone11,2,iPhone11,4,iPhone11,6_17.1.1_21B91_Restore.ipsw
Size7,612,966,861 bytes (7.61 GB)
No device matches.
Version
iOS 17.1.1
Build
21B91Released
November 7, 2023
Channel
Public release
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iOS 17.2 beta 2
How to install iOS 17.1.1 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 17.1.1 today?
Not at the moment — Apple has stopped signing 21B91, 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.