iOS 15

IPSW · iOS

iOS 15.1 beta 2 IPSW Download (19B5052f)

Build 19B5052f, released September 28, 2021 — restore images for 29 iPhones, straight from Apple's servers.

Beta Build 19B5052f Size 5.17 GB – 7.46 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 6.58 GB
Download
FilenameiPhone14,5_15.1_19B5052f_Restore.ipsw SHA-256f32b0383b882f538bb756990de8641dba7ad59acd31b5a15666535a3d1381196 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06698/37A22D33-6BCB-46BD-891E-9496E5B5D62B/iPhone14,5_15.1_19B5052f_Restore.ipsw Size6,581,848,497 bytes (6.58 GB)
iPhone 13 mini
Unsigned iPhone14,4 6.57 GB
Download
FilenameiPhone14,4_15.1_19B5052f_Restore.ipsw SHA-256c2c69d53c73d60e31c94a622439dff62af0189dc469bc8fd15797b6ec1b63095 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06537/9960BEC3-E037-4709-AD69-970FBDD61E48/iPhone14,4_15.1_19B5052f_Restore.ipsw Size6,572,650,898 bytes (6.57 GB)
iPhone 13 Pro
Unsigned iPhone14,2 6.55 GB
Download
FilenameiPhone14,2_15.1_19B5052f_Restore.ipsw SHA-256393e7dc4ece1f6b84c4347f5c0c710b9eb6e4d47c93e9e80167991e4e710f77d Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06706/908B34A8-F2DA-49E8-89AD-11D4279D3F76/iPhone14,2_15.1_19B5052f_Restore.ipsw Size6,552,782,611 bytes (6.55 GB)
iPhone 13 Pro Max
Unsigned iPhone14,3 6.59 GB
Download
FilenameiPhone14,3_15.1_19B5052f_Restore.ipsw SHA-2565033d7c2c2393b3c3dadc3ed2eb31ac879f9b9d4a54ff178e75f747ce17f6e45 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06571/8CB22489-5B7D-4EFE-B27A-18299E9D0EE1/iPhone14,3_15.1_19B5052f_Restore.ipsw Size6,594,171,956 bytes (6.59 GB)
iPhone 12 mini
Unsigned iPhone13,1 6.55 GB
Download
FilenameiPhone13,1_15.1_19B5052f_Restore.ipsw SHA-2564ef9f7e0eba22582d4af2d1d9bf89bbaf50463ba9dea7631b9136d1aca674cdd Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06499/2C00EEAB-E045-44F6-AEC1-90305DECCB6C/iPhone13,1_15.1_19B5052f_Restore.ipsw Size6,549,330,163 bytes (6.55 GB)
iPhone 12 Pro Max
Unsigned iPhone13,4 6.59 GB
Download
FilenameiPhone13,4_15.1_19B5052f_Restore.ipsw SHA-256ad7505ac8ea7f4a4857c6f2a2342989aed7c5b55833d4fa6e95a1f9a67d9569b Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06675/D13F2D3D-7155-4CEF-BF6D-9785CFF7D985/iPhone13,4_15.1_19B5052f_Restore.ipsw Size6,590,032,141 bytes (6.59 GB)
iPhone 12
Unsigned iPhone13,2 6.74 GB
Download
FilenameiPhone13,2,iPhone13,3_15.1_19B5052f_Restore.ipsw SHA-2563c9b138011e39b8f278dc1dc6c45f924cd96c93366acd57f77cfcd8cd4ffc300 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06521/42E9C802-8479-4D73-9546-57B395A6E8A2/iPhone13,2,iPhone13,3_15.1_19B5052f_Restore.ipsw Size6,739,908,784 bytes (6.74 GB)
iPhone 12 Pro
Unsigned iPhone13,3 6.74 GB
Download
FilenameiPhone13,2,iPhone13,3_15.1_19B5052f_Restore.ipsw SHA-2563c9b138011e39b8f278dc1dc6c45f924cd96c93366acd57f77cfcd8cd4ffc300 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06521/42E9C802-8479-4D73-9546-57B395A6E8A2/iPhone13,2,iPhone13,3_15.1_19B5052f_Restore.ipsw Size6,739,908,784 bytes (6.74 GB)
iPhone SE (2nd generation)
Unsigned iPhone12,8 6.15 GB
Download
FilenameiPhone12,8_15.1_19B5052f_Restore.ipsw SHA-256e8daccc1cbfdd4082af1e02a31b89e2e42d736d227cceef4566d59a5772d3608 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06548/9A5A8C6E-1B8C-4A19-AB49-9C87358FCAFF/iPhone12,8_15.1_19B5052f_Restore.ipsw Size6,147,355,020 bytes (6.15 GB)
iPhone 11
Unsigned iPhone12,1 6.93 GB
Download
FilenameiPhone11,8,iPhone12,1_15.1_19B5052f_Restore.ipsw SHA-256a67610acad350016ee50f03b106b60913cc10c126a4a8b37fde789b90d848880 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06577/1E71137F-4A55-4E07-A315-67F6E2DF23F4/iPhone11,8,iPhone12,1_15.1_19B5052f_Restore.ipsw Size6,927,399,931 bytes (6.93 GB)
iPhone 11 Pro
Unsigned iPhone12,3 7.46 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5052f_Restore.ipsw SHA-2566a3551b18dc3ca5a042341d613c6211eadf49756fd36839e45958e3477afd993 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06482/41AABAFA-4897-47C3-9EC7-9FAAC4D1368D/iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5052f_Restore.ipsw Size7,458,411,375 bytes (7.46 GB)
iPhone 11 Pro Max
Unsigned iPhone12,5 7.46 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5052f_Restore.ipsw SHA-2566a3551b18dc3ca5a042341d613c6211eadf49756fd36839e45958e3477afd993 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06482/41AABAFA-4897-47C3-9EC7-9FAAC4D1368D/iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5052f_Restore.ipsw Size7,458,411,375 bytes (7.46 GB)
iPhone XR
Unsigned iPhone11,8 6.93 GB
Download
FilenameiPhone11,8,iPhone12,1_15.1_19B5052f_Restore.ipsw SHA-256a67610acad350016ee50f03b106b60913cc10c126a4a8b37fde789b90d848880 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06577/1E71137F-4A55-4E07-A315-67F6E2DF23F4/iPhone11,8,iPhone12,1_15.1_19B5052f_Restore.ipsw Size6,927,399,931 bytes (6.93 GB)
iPhone XS
Unsigned iPhone11,2 7.46 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5052f_Restore.ipsw SHA-2566a3551b18dc3ca5a042341d613c6211eadf49756fd36839e45958e3477afd993 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06482/41AABAFA-4897-47C3-9EC7-9FAAC4D1368D/iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5052f_Restore.ipsw Size7,458,411,375 bytes (7.46 GB)
iPhone XS Max
Unsigned iPhone11,6 7.46 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5052f_Restore.ipsw SHA-2566a3551b18dc3ca5a042341d613c6211eadf49756fd36839e45958e3477afd993 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06482/41AABAFA-4897-47C3-9EC7-9FAAC4D1368D/iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5052f_Restore.ipsw Size7,458,411,375 bytes (7.46 GB)
iPhone XS Max (China mainland)
Unsigned iPhone11,4 7.46 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5052f_Restore.ipsw SHA-2566a3551b18dc3ca5a042341d613c6211eadf49756fd36839e45958e3477afd993 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06482/41AABAFA-4897-47C3-9EC7-9FAAC4D1368D/iPhone11,2,iPhone11,4,iPhone11,6,iPhone12,3,iPhone12,5_15.1_19B5052f_Restore.ipsw Size7,458,411,375 bytes (7.46 GB)
iPhone X (CDMA)
Unsigned iPhone10,3 5.88 GB
Download
FilenameiPhone10,3,iPhone10,6_15.1_19B5052f_Restore.ipsw SHA-2561bf26b67c0ef5c2d8acbd086ab022b99d50917fa9f2ee6d311ca8c78ca5d2870 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06696/0C57E819-2B80-4BDC-B1CB-753DF19D9D30/iPhone10,3,iPhone10,6_15.1_19B5052f_Restore.ipsw Size5,880,231,778 bytes (5.88 GB)
iPhone X (GSM)
Unsigned iPhone10,6 5.88 GB
Download
FilenameiPhone10,3,iPhone10,6_15.1_19B5052f_Restore.ipsw SHA-2561bf26b67c0ef5c2d8acbd086ab022b99d50917fa9f2ee6d311ca8c78ca5d2870 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06696/0C57E819-2B80-4BDC-B1CB-753DF19D9D30/iPhone10,3,iPhone10,6_15.1_19B5052f_Restore.ipsw Size5,880,231,778 bytes (5.88 GB)
iPhone 8 (CDMA)
Unsigned iPhone10,1 5.73 GB
Download
FilenameiPhone_4.7_P3_15.1_19B5052f_Restore.ipsw SHA-25638b1f10ec35452fa9f3db64b382606da4437289bc3ff429fd981cbf4fd111eb1 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06705/A42C25E8-B5F3-42D4-8E23-3ABA63DE3175/iPhone_4.7_P3_15.1_19B5052f_Restore.ipsw Size5,730,566,638 bytes (5.73 GB)
iPhone 8 (GSM)
Unsigned iPhone10,4 5.73 GB
Download
FilenameiPhone_4.7_P3_15.1_19B5052f_Restore.ipsw SHA-25638b1f10ec35452fa9f3db64b382606da4437289bc3ff429fd981cbf4fd111eb1 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06705/A42C25E8-B5F3-42D4-8E23-3ABA63DE3175/iPhone_4.7_P3_15.1_19B5052f_Restore.ipsw Size5,730,566,638 bytes (5.73 GB)
iPhone 8 Plus (CDMA)
Unsigned iPhone10,2 5.92 GB
Download
FilenameiPhone_5.5_P3_15.1_19B5052f_Restore.ipsw SHA-2560b1a10b4139797a786047c152795eed64406ee6ac97b0195077c9e38f0c5a87e Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06654/D3E5EE30-2875-4B1E-82FA-B304D92E55B4/iPhone_5.5_P3_15.1_19B5052f_Restore.ipsw Size5,919,956,062 bytes (5.92 GB)
iPhone 8 Plus (GSM)
Unsigned iPhone10,5 5.92 GB
Download
FilenameiPhone_5.5_P3_15.1_19B5052f_Restore.ipsw SHA-2560b1a10b4139797a786047c152795eed64406ee6ac97b0195077c9e38f0c5a87e Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06654/D3E5EE30-2875-4B1E-82FA-B304D92E55B4/iPhone_5.5_P3_15.1_19B5052f_Restore.ipsw Size5,919,956,062 bytes (5.92 GB)
iPhone 7 (CDMA)
Unsigned iPhone9,1 5.73 GB
Download
FilenameiPhone_4.7_P3_15.1_19B5052f_Restore.ipsw SHA-25638b1f10ec35452fa9f3db64b382606da4437289bc3ff429fd981cbf4fd111eb1 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06705/A42C25E8-B5F3-42D4-8E23-3ABA63DE3175/iPhone_4.7_P3_15.1_19B5052f_Restore.ipsw Size5,730,566,638 bytes (5.73 GB)
iPhone 7 (GSM)
Unsigned iPhone9,3 5.73 GB
Download
FilenameiPhone_4.7_P3_15.1_19B5052f_Restore.ipsw SHA-25638b1f10ec35452fa9f3db64b382606da4437289bc3ff429fd981cbf4fd111eb1 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06705/A42C25E8-B5F3-42D4-8E23-3ABA63DE3175/iPhone_4.7_P3_15.1_19B5052f_Restore.ipsw Size5,730,566,638 bytes (5.73 GB)
iPhone 7 Plus (CDMA)
Unsigned iPhone9,2 5.92 GB
Download
FilenameiPhone_5.5_P3_15.1_19B5052f_Restore.ipsw SHA-2560b1a10b4139797a786047c152795eed64406ee6ac97b0195077c9e38f0c5a87e Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06654/D3E5EE30-2875-4B1E-82FA-B304D92E55B4/iPhone_5.5_P3_15.1_19B5052f_Restore.ipsw Size5,919,956,062 bytes (5.92 GB)
iPhone 7 Plus (GSM)
Unsigned iPhone9,4 5.92 GB
Download
FilenameiPhone_5.5_P3_15.1_19B5052f_Restore.ipsw SHA-2560b1a10b4139797a786047c152795eed64406ee6ac97b0195077c9e38f0c5a87e Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06654/D3E5EE30-2875-4B1E-82FA-B304D92E55B4/iPhone_5.5_P3_15.1_19B5052f_Restore.ipsw Size5,919,956,062 bytes (5.92 GB)
iPhone SE (1st generation)
Unsigned iPhone8,4 5.35 GB
Download
FilenameiPhone_4.0_64bit_15.1_19B5052f_Restore.ipsw SHA-25631bc1b995ac723780aa0d1883e8cc640f67ddef42f75c99ee02784a507592b2e Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06512/5C4DC53C-977F-4791-8C23-96529A085A0D/iPhone_4.0_64bit_15.1_19B5052f_Restore.ipsw Size5,351,140,955 bytes (5.35 GB)
iPhone 6s
Unsigned iPhone8,1 5.39 GB
Download
FilenameiPhone_4.7_15.1_19B5052f_Restore.ipsw SHA-25636c5bcb0fee748c8e32ce702c21bd6fd92377057c8995eeaebb294a88b7e3b12 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06530/7A63EBB7-A1AF-4E24-9AEC-8C1E6F15F3CE/iPhone_4.7_15.1_19B5052f_Restore.ipsw Size5,392,814,974 bytes (5.39 GB)
iPhone 6s Plus
Unsigned iPhone8,2 5.55 GB
Download
FilenameiPhone_5.5_15.1_19B5052f_Restore.ipsw SHA-2560e754716e14b8c2872ecb2b18afde53d2f7f92f9d566b9b1c3cb9af1251208a1 Direct URLhttps://updates.cdn-apple.com/2021FallSeed/fullrestores/002-06682/EE87A2D8-DCAF-4FC7-A7AE-20078FD8A0C0/iPhone_5.5_15.1_19B5052f_Restore.ipsw Size5,546,866,268 bytes (5.55 GB)
Version
iOS 15.1 beta 2
Build
19B5052f
Released
September 28, 2021
Channel
Developer & public beta
Previous
iOS 15.1 beta
Next
iOS 15.0.1

How to install iOS 15.1 beta 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 15.1 beta 2 today?

Not at the moment — Apple has stopped signing 19B5052f, 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.