IPSW · iOS
iOS 17.1.2 IPSW Download (21B101)
Build 21B101, released November 30, 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.
iPhone15,4 8.02 GBiPhone15,4_17.1.2_21B101_Restore.ipsw SHA-256 574981e5d332e50afe80c9cec968d5ff94172d839f940407ee78e24d29c0888c 
iPhone15,5 8.02 GBiPhone15,5_17.1.2_21B101_Restore.ipsw SHA-256 233a7fe2cd5e9b2f7f1aea6c90b64eb68f48412fa9469bb5d50f26f5b21dc48b 
iPhone16,1 8.20 GBiPhone16,1_17.1.2_21B101_Restore.ipsw SHA-256 d6bf4dc7c461ecdb40a82b3c9c28458adaa067e4d8ff36987dc5060170ac5997 
iPhone16,2 8.21 GBiPhone16,2_17.1.2_21B101_Restore.ipsw SHA-256 528e8aad8b0a1f3a8f1cff5ccdf6e09884c13741a41a54b047dcf7279b5697f4 
iPhone14,8 7.84 GBiPhone14,8_17.1.2_21B101_Restore.ipsw SHA-256 957cbdc7b1b94a6f20e2cb7c161ac7c738e146b70927469868d158a3019f7b1e 
iPhone14,7 7.84 GBiPhone14,7_17.1.2_21B101_Restore.ipsw SHA-256 9a0d2e66650265976ca6e4a3bcd61b34aee05e6704bdd8650be3b07bff39b3c0 
iPhone15,2 8.00 GBiPhone15,2_17.1.2_21B101_Restore.ipsw SHA-256 280a4b54f03f5fe78bc6824493c4c5bd41ef160e902d670b8dbae7cfbd798a5d 
iPhone15,3 7.98 GBiPhone15,3_17.1.2_21B101_Restore.ipsw SHA-256 3b99b1a73982688a6e269568e015f26e9c7b95f074fbc6b14df00063d1a7810b 
iPhone14,6 7.52 GBiPhone14,6_17.1.2_21B101_Restore.ipsw SHA-256 ee0abad90b8f33a57e4efa35b7701bdaf156afadfe086d78d110d60d6e2b3357 
iPhone14,5 7.77 GBiPhone14,5_17.1.2_21B101_Restore.ipsw SHA-256 a4f6209af602d38d47e9fc22569f47d2952a784fa797ccd10b8cfb7e7e324f39 
iPhone14,4 7.79 GBiPhone14,4_17.1.2_21B101_Restore.ipsw SHA-256 5b49a9477502e125c9cea53e6e362e856b60cbea829f300564c42ccc54ea7c53 
iPhone14,2 7.89 GBiPhone14,2_17.1.2_21B101_Restore.ipsw SHA-256 88ec9566a5a2af8d13254a7363d6f472617838eb1fb41b380ddf74efdced3090 
iPhone14,3 7.89 GBiPhone14,3_17.1.2_21B101_Restore.ipsw SHA-256 3a20c2d4888ff00927c60504e3037394d04ba860699a8aded2f3dff482b35752 
iPhone13,1 7.69 GBiPhone13,1_17.1.2_21B101_Restore.ipsw SHA-256 7f3f0af103342452135dba375fa15b039c2dcd206eab2f2c8af73e984f0fde37 
iPhone13,4 7.82 GBiPhone13,4_17.1.2_21B101_Restore.ipsw SHA-256 c48a6882e13c8b987b2a9cd0be574a82451686c48e5c490f15c591cb73aeffc9 
iPhone13,2 7.86 GBiPhone13,2,iPhone13,3_17.1.2_21B101_Restore.ipsw SHA-256 4f07c04b40aea9f8d7c9c5e3611ed760ded33f5f58db4f444305891fcc36f245 
iPhone13,3 7.86 GBiPhone13,2,iPhone13,3_17.1.2_21B101_Restore.ipsw SHA-256 4f07c04b40aea9f8d7c9c5e3611ed760ded33f5f58db4f444305891fcc36f245 
iPhone12,8 7.29 GBiPhone12,8_17.1.2_21B101_Restore.ipsw SHA-256 9623d61ee4cc38af320b94f7d3e1927a4076cc3d22afe87ea5d49cc030272468 
iPhone12,1 7.32 GBiPhone12,1_17.1.2_21B101_Restore.ipsw SHA-256 5943effccff96d210c34a666e2202a7059d2f1ad9ebc83e212e22d48ca03d0cd 
iPhone12,3 7.46 GBiPhone12,3,iPhone12,5_17.1.2_21B101_Restore.ipsw SHA-256 e7e685426f6c13e90618a3963779f950ee5c9d27e09b492ee8cc0efd97c6e1ad 
iPhone12,5 7.46 GBiPhone12,3,iPhone12,5_17.1.2_21B101_Restore.ipsw SHA-256 e7e685426f6c13e90618a3963779f950ee5c9d27e09b492ee8cc0efd97c6e1ad 
iPhone11,8 7.43 GBiPhone11,8_17.1.2_21B101_Restore.ipsw SHA-256 bdf1786d42b0204aa7b6a1be26a0e8491d7a44f80c60a1f7c5a147777c784dbc 
iPhone11,2 7.61 GBiPhone11,2,iPhone11,4,iPhone11,6_17.1.2_21B101_Restore.ipsw SHA-256 d8528b9e3955d2a21865e2298dc9ff5d659ff3c6b6d10e7b91e25bc3d91802ad 
iPhone11,6 7.61 GBiPhone11,2,iPhone11,4,iPhone11,6_17.1.2_21B101_Restore.ipsw SHA-256 d8528b9e3955d2a21865e2298dc9ff5d659ff3c6b6d10e7b91e25bc3d91802ad 
iPhone11,4 7.61 GBiPhone11,2,iPhone11,4,iPhone11,6_17.1.2_21B101_Restore.ipsw SHA-256 d8528b9e3955d2a21865e2298dc9ff5d659ff3c6b6d10e7b91e25bc3d91802ad No device matches.
21B101How to install iOS 17.1.2 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 17.1.2 today?
Not at the moment — Apple has stopped signing 21B101, 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.