IPSW · iOS
iOS 17.1 IPSW Download (21B74)
Build 21B74, released October 25, 2023 — restore images for 21 iPhones, straight from Apple's servers.
Choose your iPhone
21 devices. Each row is one file on Apple's CDN.
iPhone14,8 7.84 GBiPhone14,8_17.1_21B74_Restore.ipsw SHA-256 140ac34a4f5f06f582e16763a1a75f8a668ccfe5a86d181d04f56569e9c021ea 
iPhone14,7 7.84 GBiPhone14,7_17.1_21B74_Restore.ipsw SHA-256 14cbf35bf906549da9a24f8cb157bf8631300320cf637b21647620612d6abeb6 
iPhone15,2 8.00 GBiPhone15,2_17.1_21B74_Restore.ipsw SHA-256 68e737488d3887f74084553b491bea41b4f0a3f6e7dab3e52072c379eaa40d6f 
iPhone15,3 7.98 GBiPhone15,3_17.1_21B74_Restore.ipsw SHA-256 303596d47a428ef079d628a76bd267e861dade1103f0855b0a4f251455a4d6ee 
iPhone14,6 7.52 GBiPhone14,6_17.1_21B74_Restore.ipsw SHA-256 8b719f4375c296c114e5cc17ea98406afb98bdec3cf2e6b519fd1f996dd58d3f 
iPhone14,5 7.77 GBiPhone14,5_17.1_21B74_Restore.ipsw SHA-256 2fcd49ad3fe17805c8fcdcd8a165f1621f5564c4b17935d6d124427dfa625ab6 
iPhone14,4 7.79 GBiPhone14,4_17.1_21B74_Restore.ipsw SHA-256 ad79e7ca6bf7ea7cd653352219bf08be1f1c60d02c4fa4d0f9885ca076d4b492 
iPhone14,2 7.89 GBiPhone14,2_17.1_21B74_Restore.ipsw SHA-256 9300a09c6a0481e703e921e1a2003d6e0858735c4f82dab4b2c54dcc43697882 
iPhone14,3 7.89 GBiPhone14,3_17.1_21B74_Restore.ipsw SHA-256 34667d46bc22538ea77edf6eb74371fbb20c68c16a1985c115410c2f6a43f292 
iPhone13,1 7.69 GBiPhone13,1_17.1_21B74_Restore.ipsw SHA-256 59b80e699302672d5ad9d4c7482280a9438aa16fd2a7cf9902c303137fd945bb 
iPhone13,4 7.82 GBiPhone13,4_17.1_21B74_Restore.ipsw SHA-256 cb6ef047aa08486af3c5bc3234cb96e2fe5294d2dcd93c5920d7adc49814d671 
iPhone13,2 7.86 GBiPhone13,2,iPhone13,3_17.1_21B74_Restore.ipsw SHA-256 bef9b6889892bf64fb91586773fb1484b47f3482714e9ae741f12f00c6608d8d 
iPhone13,3 7.86 GBiPhone13,2,iPhone13,3_17.1_21B74_Restore.ipsw SHA-256 bef9b6889892bf64fb91586773fb1484b47f3482714e9ae741f12f00c6608d8d 
iPhone12,8 7.29 GBiPhone12,8_17.1_21B74_Restore.ipsw SHA-256 6934037c43b7e0acf0a2ac6d5d72682da1b909cb9d93884f36f5e1725ce8b58b 
iPhone12,1 7.32 GBiPhone12,1_17.1_21B74_Restore.ipsw SHA-256 eec95c0181cc02c8939e33f8366608bcf77eae87f4fcc10d3dafbba5da2c03ba 
iPhone12,3 7.46 GBiPhone12,3,iPhone12,5_17.1_21B74_Restore.ipsw SHA-256 6697a01dbfcd7c79ea24240e2ecdf2e5d51ddd8d51449fc67d8d389b0e635392 
iPhone12,5 7.46 GBiPhone12,3,iPhone12,5_17.1_21B74_Restore.ipsw SHA-256 6697a01dbfcd7c79ea24240e2ecdf2e5d51ddd8d51449fc67d8d389b0e635392 
iPhone11,8 7.43 GBiPhone11,8_17.1_21B74_Restore.ipsw SHA-256 014b967693ad85283913ab0aac7a553d3d591c26e89ddf4db5994f7e66609e08 
iPhone11,2 7.61 GBiPhone11,2,iPhone11,4,iPhone11,6_17.1_21B74_Restore.ipsw SHA-256 a19e7f828257c5478cb43bdd23310153cb6081155098872aad3e0f4a72179580 
iPhone11,6 7.61 GBiPhone11,2,iPhone11,4,iPhone11,6_17.1_21B74_Restore.ipsw SHA-256 a19e7f828257c5478cb43bdd23310153cb6081155098872aad3e0f4a72179580 
iPhone11,4 7.61 GBiPhone11,2,iPhone11,4,iPhone11,6_17.1_21B74_Restore.ipsw SHA-256 a19e7f828257c5478cb43bdd23310153cb6081155098872aad3e0f4a72179580 No device matches.
21B74How to install iOS 17.1 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 today?
Not at the moment — Apple has stopped signing 21B74, 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.