IPSW · iOS
iOS 15.1 IPSW Download (19B74)
Build 19B74, released October 25, 2021 — restore images for 29 iPhones, straight from Apple's servers.
Choose your iPhone
29 devices. Each row is one file on Apple's CDN.
iPhone14,5 6.62 GBiPhone14,5_15.1_19B74_Restore.ipsw SHA-256 52756b953c71603629dd9e6bbae39efc6b3231e442fa116c50cd1bf4e7ff522d 
iPhone14,4 6.61 GBiPhone14,4_15.1_19B74_Restore.ipsw SHA-256 52332490670385345ab1eb5f42044a5fc434415aef1d43ba11c1c88da59df1d1 
iPhone14,2 6.59 GBiPhone14,2_15.1_19B74_Restore.ipsw SHA-256 64c10596bd9103e191b7ed77c3273eb98ada7ae16be3d5579d59723de94ab024 
iPhone14,3 6.63 GBiPhone14,3_15.1_19B74_Restore.ipsw SHA-256 8d91dbc5091ea6e31953141822cae6c52c7941cd9c6f33a735fc0e3630ba9087 
iPhone13,1 6.58 GBiPhone13,1_15.1_19B74_Restore.ipsw SHA-256 7d319fe270b5eae170ff3bae6a5ef5668fb221d9cf3cdf928419f6c2cb1d0551 
iPhone13,4 6.63 GBiPhone13,4_15.1_19B74_Restore.ipsw SHA-256 4be85b0647734c3dbf7d4eba63a4726aac6cfd4075526b1a3ae871b0d06cff02 
iPhone13,2 6.79 GBiPhone13,2,iPhone13,3_15.1_19B74_Restore.ipsw SHA-256 2cc0b48ace74264d83a49d450048eea32bcad114004fdecb94ae2307d54b9e43 
iPhone13,3 6.79 GBiPhone13,2,iPhone13,3_15.1_19B74_Restore.ipsw SHA-256 2cc0b48ace74264d83a49d450048eea32bcad114004fdecb94ae2307d54b9e43 
iPhone12,8 6.19 GBiPhone12,8_15.1_19B74_Restore.ipsw SHA-256 14396c9e5ff6f95264645270676211ae1e9f1a615b6a81e3fd55ea3e7e8c80e7 
iPhone12,1 6.97 GBiPhone11,8,iPhone12,1_15.1_19B74_Restore.ipsw SHA-256 8b0a4ac3a5b013a0f5ac9d0110c6a371fcf0a2e7a01a8cfbf9759de29582edd4 
iPhone12,3 7.51 GBiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B74_Restore.ipsw SHA-256 87e70faeaf16d31da64bc1d33901216c43ab7be32637b93544404d755375d0e9 
iPhone12,5 7.51 GBiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B74_Restore.ipsw SHA-256 87e70faeaf16d31da64bc1d33901216c43ab7be32637b93544404d755375d0e9 
iPhone11,8 6.97 GBiPhone11,8,iPhone12,1_15.1_19B74_Restore.ipsw SHA-256 8b0a4ac3a5b013a0f5ac9d0110c6a371fcf0a2e7a01a8cfbf9759de29582edd4 
iPhone11,2 7.51 GBiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B74_Restore.ipsw SHA-256 87e70faeaf16d31da64bc1d33901216c43ab7be32637b93544404d755375d0e9 
iPhone11,6 7.51 GBiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B74_Restore.ipsw SHA-256 87e70faeaf16d31da64bc1d33901216c43ab7be32637b93544404d755375d0e9 
iPhone11,4 7.51 GBiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B74_Restore.ipsw SHA-256 87e70faeaf16d31da64bc1d33901216c43ab7be32637b93544404d755375d0e9 
iPhone10,3 5.91 GBiPhone10,3,iPhone10,6_15.1_19B74_Restore.ipsw SHA-256 a413abe04695470b7c73080d2f02debf634019d561c06f8616b08fb81e608129 
iPhone10,6 5.91 GBiPhone10,3,iPhone10,6_15.1_19B74_Restore.ipsw SHA-256 a413abe04695470b7c73080d2f02debf634019d561c06f8616b08fb81e608129 
iPhone10,1 5.74 GBiPhone_4.7_P3_15.1_19B74_Restore.ipsw SHA-256 16a2f075aae65cde99020bde4ec190eaed078071f1c205f93f58b739814fca8d 
iPhone10,4 5.74 GBiPhone_4.7_P3_15.1_19B74_Restore.ipsw SHA-256 16a2f075aae65cde99020bde4ec190eaed078071f1c205f93f58b739814fca8d 
iPhone10,2 5.96 GBiPhone_5.5_P3_15.1_19B74_Restore.ipsw SHA-256 cb35e368de8fd9ec002b5224ea950f3ee264d1b59bbfc82a98a8da74ff2e1f5d 
iPhone10,5 5.96 GBiPhone_5.5_P3_15.1_19B74_Restore.ipsw SHA-256 cb35e368de8fd9ec002b5224ea950f3ee264d1b59bbfc82a98a8da74ff2e1f5d 
iPhone9,1 5.74 GBiPhone_4.7_P3_15.1_19B74_Restore.ipsw SHA-256 16a2f075aae65cde99020bde4ec190eaed078071f1c205f93f58b739814fca8d 
iPhone9,3 5.74 GBiPhone_4.7_P3_15.1_19B74_Restore.ipsw SHA-256 16a2f075aae65cde99020bde4ec190eaed078071f1c205f93f58b739814fca8d 
iPhone9,2 5.96 GBiPhone_5.5_P3_15.1_19B74_Restore.ipsw SHA-256 cb35e368de8fd9ec002b5224ea950f3ee264d1b59bbfc82a98a8da74ff2e1f5d 
iPhone9,4 5.96 GBiPhone_5.5_P3_15.1_19B74_Restore.ipsw SHA-256 cb35e368de8fd9ec002b5224ea950f3ee264d1b59bbfc82a98a8da74ff2e1f5d 
iPhone8,4 5.39 GBiPhone_4.0_64bit_15.1_19B74_Restore.ipsw SHA-256 5559ac78b277751938c63467f97d0f031693817a23653608ddbf73f080a58c6e 
iPhone8,1 5.42 GBiPhone_4.7_15.1_19B74_Restore.ipsw SHA-256 44207c4130e8bf2898429d71a14503dd76a31f1a403c013ca50df753a37592c8 
iPhone8,2 5.58 GBiPhone_5.5_15.1_19B74_Restore.ipsw SHA-256 bcf974cc79c1a13bc87ef6af1971f1e2e951fadfa71ce4007b77eba9531b7130 No device matches.
19B74How to install iOS 15.1 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 today?
Not at the moment — Apple has stopped signing 19B74, 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.