IPSW · iOS
iOS 17.5 IPSW Download (21F79)
Build 21F79, released May 13, 2024 — restore images for 25 iPhones, straight from Apple's servers.
Choose your iPhone
25 devices. Each row is one file on Apple's CDN.
iPhone15,4 8.09 GBiPhone15,4_17.5_21F79_Restore.ipsw SHA-256 071facee10a2aea6946429ca2b9ff20ea80e3d7d6b39a4af9c94fcc05a58f8bc 
iPhone15,5 8.09 GBiPhone15,5_17.5_21F79_Restore.ipsw SHA-256 ba21ff58438ae99731fe770822fa6cb1066e8320f5edaa91a35d78ad10d3b193 
iPhone16,1 8.28 GBiPhone16,1_17.5_21F79_Restore.ipsw SHA-256 c76738947339d43d11497cfce4e0573e94ceed72cc2de707e4c3d16565d4b0a0 
iPhone16,2 8.28 GBiPhone16,2_17.5_21F79_Restore.ipsw SHA-256 e08d32fc0b12a47f7108089cfd822f4d03320d77ee27a657c952812f10143ca4 
iPhone14,8 7.94 GBiPhone14,8_17.5_21F79_Restore.ipsw SHA-256 b07d29aaa552e218e626c2ed8609be784282b9605566a27870182de66506b500 
iPhone14,7 7.95 GBiPhone14,7_17.5_21F79_Restore.ipsw SHA-256 8b10ca8e331e5581cf7ecceea4d9525766beed0de4ea1075fdd9de01a001240e 
iPhone15,2 8.11 GBiPhone15,2_17.5_21F79_Restore.ipsw SHA-256 f73c8919fb23a2089caf8ea6bfe6f12ecb388aec0af88d4d3a814b6f4751392a 
iPhone15,3 8.09 GBiPhone15,3_17.5_21F79_Restore.ipsw SHA-256 08c040abf705b4f3be21da6dc738785173c7cb455484cdde3d7621f3583f8373 
iPhone14,6 7.67 GBiPhone14,6_17.5_21F79_Restore.ipsw SHA-256 686b9ff3b69ad2afbc5f580742edea456f31a9c094007c02cda7a4061cd15628 
iPhone14,5 7.89 GBiPhone14,5_17.5_21F79_Restore.ipsw SHA-256 0a85f9416b655af139c8d1b0e708ddc155b69f3230cced7d4b8ee029ccd2d686 
iPhone14,4 7.92 GBiPhone14,4_17.5_21F79_Restore.ipsw SHA-256 e21194160c69428e6fc81ea6a4bb316045bd18a5c88846a9059c5cb325572ba3 
iPhone14,2 8.02 GBiPhone14,2_17.5_21F79_Restore.ipsw SHA-256 0af0e59c3b9f14cf0b092cc2588022f68c60a1060c765510041197246f0be7df 
iPhone14,3 8.02 GBiPhone14,3_17.5_21F79_Restore.ipsw SHA-256 bd44324673dfd5aae3ea09bcc7e5abcc9ef416421529301387b077d474140ec7 
iPhone13,1 7.83 GBiPhone13,1_17.5_21F79_Restore.ipsw SHA-256 8c647816b55ec00f060093b75d58005028b798f30fe5ab91d776c15dc1e21a53 
iPhone13,4 7.96 GBiPhone13,4_17.5_21F79_Restore.ipsw SHA-256 274b9faa1a653eb0184260b38751f731a7a44555c8a77119f13836f4406a5c4b 
iPhone13,2 8.01 GBiPhone13,2,iPhone13,3_17.5_21F79_Restore.ipsw SHA-256 83900000d72efe3416e749d8584d5cb8ed20308435c46b1a2a7c73aa4bfc84b7 
iPhone13,3 8.01 GBiPhone13,2,iPhone13,3_17.5_21F79_Restore.ipsw SHA-256 83900000d72efe3416e749d8584d5cb8ed20308435c46b1a2a7c73aa4bfc84b7 
iPhone12,8 7.47 GBiPhone12,8_17.5_21F79_Restore.ipsw SHA-256 002b87da1fa943fb7d717a26d211b140fc8503690971edd0089b8870aba0709a 
iPhone12,1 7.50 GBiPhone12,1_17.5_21F79_Restore.ipsw SHA-256 e051df9d52f718d99a8c10b975ebf5bba0df25423e5b2d1607cc041472f60b16 
iPhone12,3 7.65 GBiPhone12,3,iPhone12,5_17.5_21F79_Restore.ipsw SHA-256 606f07a191b0936600a3909c1f68a50ef0325446b04fae812a6c765174bf6b82 
iPhone12,5 7.65 GBiPhone12,3,iPhone12,5_17.5_21F79_Restore.ipsw SHA-256 606f07a191b0936600a3909c1f68a50ef0325446b04fae812a6c765174bf6b82 
iPhone11,8 7.62 GBiPhone11,8_17.5_21F79_Restore.ipsw SHA-256 6b1946ad1f10e21007236eae34cd11009034b9d5c5c30068c5bf841fc8843b55 
iPhone11,2 7.80 GBiPhone11,2,iPhone11,4,iPhone11,6_17.5_21F79_Restore.ipsw SHA-256 69eeb7aa17f34cd6722437499d2aa163b44430079c97014fc0f7c4292a333e8c 
iPhone11,6 7.80 GBiPhone11,2,iPhone11,4,iPhone11,6_17.5_21F79_Restore.ipsw SHA-256 69eeb7aa17f34cd6722437499d2aa163b44430079c97014fc0f7c4292a333e8c 
iPhone11,4 7.80 GBiPhone11,2,iPhone11,4,iPhone11,6_17.5_21F79_Restore.ipsw SHA-256 69eeb7aa17f34cd6722437499d2aa163b44430079c97014fc0f7c4292a333e8c No device matches.
21F79How to install iOS 17.5 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 17.5 today?
Not at the moment — Apple has stopped signing 21F79, 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.