iOS 15

IPSW · iOS

iOS 15.1 beta IPSW Download (19B5042h)

Build 19B5042h, released September 21, 2021 — restore images for 29 iPhones, straight from Apple's servers.

Beta Build 19B5042h Size 5.16 GB – 7.47 GB All iOS 15 builds →
Apple has stopped signing this build. A restore will be rejected at the final step. The files stay listed for reference. Signing status checked September 16, 2026.

Choose your iPhone

29 devices. Each row is one file on Apple's CDN.

iPhone 13
Unsigned iPhone14,5 6.59 GB
Download
FilenameiPhone14,5_15.1_19B5042h_Restore.ipsw SHA-256c59ff78f537e15cfa0ac7185338aeebcb76946e7b2c80f4784a2b917db952c6e Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04109/C5A89622-6E4F-41E2-B3CD-329968A85E4F/iPhone14,5_15.1_19B5042h_Restore.ipsw Size6,585,122,821 bytes (6.59 GB)
iPhone 13 mini
Unsigned iPhone14,4 6.58 GB
Download
FilenameiPhone14,4_15.1_19B5042h_Restore.ipsw SHA-256157dee4013be1fe72ccb9e4dcf61e72ccd6421f30e5b00bb5aa24b4379d95897 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04065/7D483ABF-EABB-427D-A52A-B64331A0D447/iPhone14,4_15.1_19B5042h_Restore.ipsw Size6,581,895,598 bytes (6.58 GB)
iPhone 13 Pro
Unsigned iPhone14,2 6.56 GB
Download
FilenameiPhone14,2_15.1_19B5042h_Restore.ipsw SHA-256f22f100952ace8295418b9b757dda11ecc1057f02c46f2747399d907aff3cdaf Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04151/CF0DD6A7-81F8-46D4-AD66-F370F5D13EEA/iPhone14,2_15.1_19B5042h_Restore.ipsw Size6,559,257,668 bytes (6.56 GB)
iPhone 13 Pro Max
Unsigned iPhone14,3 6.60 GB
Download
FilenameiPhone14,3_15.1_19B5042h_Restore.ipsw SHA-256d36f8c480ca4912a890f388a9702d603856a5d3888700a24072b4d4819613119 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04172/16E83F05-6C09-4D1D-9B31-7C5E7524DD09/iPhone14,3_15.1_19B5042h_Restore.ipsw Size6,598,840,422 bytes (6.60 GB)
iPhone 12 mini
Unsigned iPhone13,1 6.55 GB
Download
FilenameiPhone13,1_15.1_19B5042h_Restore.ipsw SHA-2568715545d18181d29b021f328ff5df01d77fa8b6fc72565e91f74a5119b060911 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04056/CAEB9E84-9C0D-4E8E-8085-3586E59A86C3/iPhone13,1_15.1_19B5042h_Restore.ipsw Size6,554,404,677 bytes (6.55 GB)
iPhone 12 Pro Max
Unsigned iPhone13,4 6.59 GB
Download
FilenameiPhone13,4_15.1_19B5042h_Restore.ipsw SHA-2567fc0d0e7e59d8ac6d0b71a597bd31ed017147f339bade5eecf01532ccbc4b987 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04080/561DC8A1-EE64-4105-9524-79B00EA0C9DE/iPhone13,4_15.1_19B5042h_Restore.ipsw Size6,593,972,408 bytes (6.59 GB)
iPhone 12
Unsigned iPhone13,2 6.75 GB
Download
FilenameiPhone13,2,iPhone13,3_15.1_19B5042h_Restore.ipsw SHA-25668064181c32de11df8710967216d3c637a05d0d75b109e849d35ac547b2153bd Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04129/7B77A1FC-11E3-45D4-9543-1951B72D35B6/iPhone13,2,iPhone13,3_15.1_19B5042h_Restore.ipsw Size6,746,445,222 bytes (6.75 GB)
iPhone 12 Pro
Unsigned iPhone13,3 6.75 GB
Download
FilenameiPhone13,2,iPhone13,3_15.1_19B5042h_Restore.ipsw SHA-25668064181c32de11df8710967216d3c637a05d0d75b109e849d35ac547b2153bd Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04129/7B77A1FC-11E3-45D4-9543-1951B72D35B6/iPhone13,2,iPhone13,3_15.1_19B5042h_Restore.ipsw Size6,746,445,222 bytes (6.75 GB)
iPhone SE (2nd generation)
Unsigned iPhone12,8 6.16 GB
Download
FilenameiPhone12,8_15.1_19B5042h_Restore.ipsw SHA-256b594c01a4511a1a343ef38ec4cb6e95da6635c3a0216b3c9016eb6f8ff234908 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-03942/9D6F8359-391E-48E3-8E79-BC964E99A6A9/iPhone12,8_15.1_19B5042h_Restore.ipsw Size6,156,267,651 bytes (6.16 GB)
iPhone 11
Unsigned iPhone12,1 6.94 GB
Download
FilenameiPhone11,8,iPhone12,1_15.1_19B5042h_Restore.ipsw SHA-25620956fc53c142e15aea66b6a35721504a2c91ae83d701f80e528a215e3b3b4e6 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04068/F903978A-2B8F-4929-B921-A387A5CF3AA8/iPhone11,8,iPhone12,1_15.1_19B5042h_Restore.ipsw Size6,940,848,991 bytes (6.94 GB)
iPhone 11 Pro
Unsigned iPhone12,3 7.47 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5042h_Restore.ipsw SHA-256b513bae85377e03def90e9d3bdaf4725dbaad2ee0d0718a9fbbbc56307161217 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-03915/D1236987-8E6A-4957-896E-7885B4FE7DFD/iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5042h_Restore.ipsw Size7,472,814,871 bytes (7.47 GB)
iPhone 11 Pro Max
Unsigned iPhone12,5 7.47 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5042h_Restore.ipsw SHA-256b513bae85377e03def90e9d3bdaf4725dbaad2ee0d0718a9fbbbc56307161217 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-03915/D1236987-8E6A-4957-896E-7885B4FE7DFD/iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5042h_Restore.ipsw Size7,472,814,871 bytes (7.47 GB)
iPhone XR
Unsigned iPhone11,8 6.94 GB
Download
FilenameiPhone11,8,iPhone12,1_15.1_19B5042h_Restore.ipsw SHA-25620956fc53c142e15aea66b6a35721504a2c91ae83d701f80e528a215e3b3b4e6 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04068/F903978A-2B8F-4929-B921-A387A5CF3AA8/iPhone11,8,iPhone12,1_15.1_19B5042h_Restore.ipsw Size6,940,848,991 bytes (6.94 GB)
iPhone XS
Unsigned iPhone11,2 7.47 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5042h_Restore.ipsw SHA-256b513bae85377e03def90e9d3bdaf4725dbaad2ee0d0718a9fbbbc56307161217 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-03915/D1236987-8E6A-4957-896E-7885B4FE7DFD/iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5042h_Restore.ipsw Size7,472,814,871 bytes (7.47 GB)
iPhone XS Max
Unsigned iPhone11,6 7.47 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5042h_Restore.ipsw SHA-256b513bae85377e03def90e9d3bdaf4725dbaad2ee0d0718a9fbbbc56307161217 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-03915/D1236987-8E6A-4957-896E-7885B4FE7DFD/iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5042h_Restore.ipsw Size7,472,814,871 bytes (7.47 GB)
iPhone XS Max (China mainland)
Unsigned iPhone11,4 7.47 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5042h_Restore.ipsw SHA-256b513bae85377e03def90e9d3bdaf4725dbaad2ee0d0718a9fbbbc56307161217 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-03915/D1236987-8E6A-4957-896E-7885B4FE7DFD/iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5042h_Restore.ipsw Size7,472,814,871 bytes (7.47 GB)
iPhone X (CDMA)
Unsigned iPhone10,3 5.87 GB
Download
FilenameiPhone10,3,iPhone10,6_15.1_19B5042h_Restore.ipsw SHA-256ae7ae05a0d92df3eba8c8aeedc82edc5fd55f8e6a34a240e83a19a36a9213e82 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-03975/3BD6C66D-30DA-439B-A1E1-8F14AEEF9387/iPhone10,3,iPhone10,6_15.1_19B5042h_Restore.ipsw Size5,871,303,995 bytes (5.87 GB)
iPhone X (GSM)
Unsigned iPhone10,6 5.87 GB
Download
FilenameiPhone10,3,iPhone10,6_15.1_19B5042h_Restore.ipsw SHA-256ae7ae05a0d92df3eba8c8aeedc82edc5fd55f8e6a34a240e83a19a36a9213e82 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-03975/3BD6C66D-30DA-439B-A1E1-8F14AEEF9387/iPhone10,3,iPhone10,6_15.1_19B5042h_Restore.ipsw Size5,871,303,995 bytes (5.87 GB)
iPhone 8 (CDMA)
Unsigned iPhone10,1 5.70 GB
Download
FilenameiPhone_4.7_P3_15.1_19B5042h_Restore.ipsw SHA-256624fc775772476244e83fed1708b0eb124a7f6de548ba38903bf45f62e498393 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-03992/BCE4073C-A5CB-4167-B914-5AF7B1DF1385/iPhone_4.7_P3_15.1_19B5042h_Restore.ipsw Size5,698,177,790 bytes (5.70 GB)
iPhone 8 (GSM)
Unsigned iPhone10,4 5.70 GB
Download
FilenameiPhone_4.7_P3_15.1_19B5042h_Restore.ipsw SHA-256624fc775772476244e83fed1708b0eb124a7f6de548ba38903bf45f62e498393 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-03992/BCE4073C-A5CB-4167-B914-5AF7B1DF1385/iPhone_4.7_P3_15.1_19B5042h_Restore.ipsw Size5,698,177,790 bytes (5.70 GB)
iPhone 8 Plus (CDMA)
Unsigned iPhone10,2 5.92 GB
Download
FilenameiPhone_5.5_P3_15.1_19B5042h_Restore.ipsw SHA-256a5e095a07ccf277d5ba34d16db40c3d1d3168073aa054d485ff3d00878b18f2a Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04061/22537B72-192E-4BA7-B9AF-C7DD38992761/iPhone_5.5_P3_15.1_19B5042h_Restore.ipsw Size5,919,247,044 bytes (5.92 GB)
iPhone 8 Plus (GSM)
Unsigned iPhone10,5 5.92 GB
Download
FilenameiPhone_5.5_P3_15.1_19B5042h_Restore.ipsw SHA-256a5e095a07ccf277d5ba34d16db40c3d1d3168073aa054d485ff3d00878b18f2a Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04061/22537B72-192E-4BA7-B9AF-C7DD38992761/iPhone_5.5_P3_15.1_19B5042h_Restore.ipsw Size5,919,247,044 bytes (5.92 GB)
iPhone 7 (CDMA)
Unsigned iPhone9,1 5.70 GB
Download
FilenameiPhone_4.7_P3_15.1_19B5042h_Restore.ipsw SHA-256624fc775772476244e83fed1708b0eb124a7f6de548ba38903bf45f62e498393 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-03992/BCE4073C-A5CB-4167-B914-5AF7B1DF1385/iPhone_4.7_P3_15.1_19B5042h_Restore.ipsw Size5,698,177,790 bytes (5.70 GB)
iPhone 7 (GSM)
Unsigned iPhone9,3 5.70 GB
Download
FilenameiPhone_4.7_P3_15.1_19B5042h_Restore.ipsw SHA-256624fc775772476244e83fed1708b0eb124a7f6de548ba38903bf45f62e498393 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-03992/BCE4073C-A5CB-4167-B914-5AF7B1DF1385/iPhone_4.7_P3_15.1_19B5042h_Restore.ipsw Size5,698,177,790 bytes (5.70 GB)
iPhone 7 Plus (CDMA)
Unsigned iPhone9,2 5.92 GB
Download
FilenameiPhone_5.5_P3_15.1_19B5042h_Restore.ipsw SHA-256a5e095a07ccf277d5ba34d16db40c3d1d3168073aa054d485ff3d00878b18f2a Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04061/22537B72-192E-4BA7-B9AF-C7DD38992761/iPhone_5.5_P3_15.1_19B5042h_Restore.ipsw Size5,919,247,044 bytes (5.92 GB)
iPhone 7 Plus (GSM)
Unsigned iPhone9,4 5.92 GB
Download
FilenameiPhone_5.5_P3_15.1_19B5042h_Restore.ipsw SHA-256a5e095a07ccf277d5ba34d16db40c3d1d3168073aa054d485ff3d00878b18f2a Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04061/22537B72-192E-4BA7-B9AF-C7DD38992761/iPhone_5.5_P3_15.1_19B5042h_Restore.ipsw Size5,919,247,044 bytes (5.92 GB)
iPhone SE (1st generation)
Unsigned iPhone8,4 5.35 GB
Download
FilenameiPhone_4.0_64bit_15.1_19B5042h_Restore.ipsw SHA-2569cada963ab58d08943a2f162ea1358874186fd991042e2a67414fdb83cb7bc71 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-03901/5F21C425-20AF-40A6-BEAD-03EDA3F2134F/iPhone_4.0_64bit_15.1_19B5042h_Restore.ipsw Size5,352,393,897 bytes (5.35 GB)
iPhone 6s
Unsigned iPhone8,1 5.38 GB
Download
FilenameiPhone_4.7_15.1_19B5042h_Restore.ipsw SHA-25660f3efabeecd248e4bc2782777f876586e9130928fb23abb4b8ccf663b05a4d0 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-03951/EBE00FDB-9F81-4C50-9386-6FDB9CAB12E9/iPhone_4.7_15.1_19B5042h_Restore.ipsw Size5,379,303,800 bytes (5.38 GB)
iPhone 6s Plus
Unsigned iPhone8,2 5.55 GB
Download
FilenameiPhone_5.5_15.1_19B5042h_Restore.ipsw SHA-256b2ea6ea71b1bc6f193d5a6ad7706e2772fdce465d6eb8262bfffbb65edb5faab Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-04039/91B6509F-3059-4915-9F0A-4904E74B1322/iPhone_5.5_15.1_19B5042h_Restore.ipsw Size5,545,712,712 bytes (5.55 GB)
Version
iOS 15.1 beta
Build
19B5042h
Released
September 21, 2021
Channel
Developer & public beta
Previous
iOS 15.0
Next
iOS 15.1 beta 2

How to install iOS 15.1 beta 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 beta today?

Not at the moment — Apple has stopped signing 19B5042h, 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.