iOS 17

IPSW · iOS

iOS 17.3 beta 2 IPSW Download (21D5036c)

Build 21D5036c, released January 3, 2024 — restore images for 25 iPhones, straight from Apple's servers.

Beta Build 21D5036c Size 7.29 GB – 8.13 GB All iOS 17 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

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

iPhone 15
Unsigned iPhone15,4 7.95 GB
Download
FilenameiPhone15,4_17.3_21D5036c_Restore.ipsw SHA-25694214eff0f29d988dc61a6f59e87261295720a02c6db7eebac84b7ab445203b4 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23024/1DBCC796-CEDD-4E63-B780-39AF46F5DBB5/iPhone15,4_17.3_21D5036c_Restore.ipsw Size7,946,215,481 bytes (7.95 GB)
iPhone 15 Plus
Unsigned iPhone15,5 7.95 GB
Download
FilenameiPhone15,5_17.3_21D5036c_Restore.ipsw SHA-256a89dce8c65313e660e6a72383d26b482599d1f821993d54c2268a54b26501404 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23223/16D55283-96AB-4EB2-BFF8-58CAEBC89E1D/iPhone15,5_17.3_21D5036c_Restore.ipsw Size7,946,204,887 bytes (7.95 GB)
iPhone 15 Pro
Unsigned iPhone16,1 8.13 GB
Download
FilenameiPhone16,1_17.3_21D5036c_Restore.ipsw SHA-2566b0d60b2d769740ac5970ebc7ca9ee78ecbcd27ed012d42fa9936f1681762e40 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23113/20EE35C1-B7C0-4509-95E1-FFF6F2259456/iPhone16,1_17.3_21D5036c_Restore.ipsw Size8,132,114,036 bytes (8.13 GB)
iPhone 15 Pro Max
Unsigned iPhone16,2 8.13 GB
Download
FilenameiPhone16,2_17.3_21D5036c_Restore.ipsw SHA-25668fe2b966ea200fc31335a9feb1751a9d86db96ca329fa7b0b9e69ae77e69fe9 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23147/9F08F82A-872C-452C-AAB4-C7D2045F1BF0/iPhone16,2_17.3_21D5036c_Restore.ipsw Size8,133,625,761 bytes (8.13 GB)
iPhone 14 Plus
Unsigned iPhone14,8 7.76 GB
Download
FilenameiPhone14,8_17.3_21D5036c_Restore.ipsw SHA-256e5df878986a38a40c490b083b7f0c3a83da46b969165c242dc89f5f20f7e13c4 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-22942/067C9F6E-FF6E-4510-81A2-6ECD28B6FBA0/iPhone14,8_17.3_21D5036c_Restore.ipsw Size7,762,152,262 bytes (7.76 GB)
iPhone 14
Unsigned iPhone14,7 7.76 GB
Download
FilenameiPhone14,7_17.3_21D5036c_Restore.ipsw SHA-2565f703918fd9a64945375bc7654cc1019c1244edfc407c61f90f0519031c21c06 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23123/0197F85B-54EC-485A-9B22-72D7CC1F8DD4/iPhone14,7_17.3_21D5036c_Restore.ipsw Size7,763,435,358 bytes (7.76 GB)
iPhone 14 Pro
Unsigned iPhone15,2 7.92 GB
Download
FilenameiPhone15,2_17.3_21D5036c_Restore.ipsw SHA-2561508fca89469144338f69e6aee0f8419cbc061fddc7bcded77d071906f819a90 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-22932/38663E50-4373-40C8-A306-BDB83CEFD965/iPhone15,2_17.3_21D5036c_Restore.ipsw Size7,924,393,200 bytes (7.92 GB)
iPhone 14 Pro Max
Unsigned iPhone15,3 7.90 GB
Download
FilenameiPhone15,3_17.3_21D5036c_Restore.ipsw SHA-2565b118a88e3f1abf840a2474559feff5e6b6ef8e98c540690b491015b320c3fe1 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23029/829597B3-94CC-4C53-9202-5DD42340B537/iPhone15,3_17.3_21D5036c_Restore.ipsw Size7,902,899,489 bytes (7.90 GB)
iPhone SE (3rd generation)
Unsigned iPhone14,6 7.50 GB
Download
FilenameiPhone14,6_17.3_21D5036c_Restore.ipsw SHA-25634f64a72db3fd559f802b67bdef099a24353562f0038fb08e8f9fd6d6e02e728 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23041/5B1BCB5D-2637-44E4-B024-EAEDA38DC2D1/iPhone14,6_17.3_21D5036c_Restore.ipsw Size7,499,527,563 bytes (7.50 GB)
iPhone 13
Unsigned iPhone14,5 7.71 GB
Download
FilenameiPhone14,5_17.3_21D5036c_Restore.ipsw SHA-256ee18ad1a6102e475be5547496696e8d99c2fe93f3ca7b4f1ca3246c71146b576 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23021/8B98F2F5-130A-4ACC-9771-21CCF91436F0/iPhone14,5_17.3_21D5036c_Restore.ipsw Size7,714,060,453 bytes (7.71 GB)
iPhone 13 mini
Unsigned iPhone14,4 7.74 GB
Download
FilenameiPhone14,4_17.3_21D5036c_Restore.ipsw SHA-256a6622735597ac28eb7480379ebf6ad7e75e3846b140b164269af202c03327613 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23146/E6270F16-D9B4-4ACD-896F-75ED6F35DDA7/iPhone14,4_17.3_21D5036c_Restore.ipsw Size7,737,750,807 bytes (7.74 GB)
iPhone 13 Pro
Unsigned iPhone14,2 7.84 GB
Download
FilenameiPhone14,2_17.3_21D5036c_Restore.ipsw SHA-2568b02d0f418e945d77a04ea2fd43779de0033e1e90620d7b00e39dc0babb447f5 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-22888/585AB637-26B0-4575-B8F2-A789DFF7811E/iPhone14,2_17.3_21D5036c_Restore.ipsw Size7,836,005,876 bytes (7.84 GB)
iPhone 13 Pro Max
Unsigned iPhone14,3 7.84 GB
Download
FilenameiPhone14,3_17.3_21D5036c_Restore.ipsw SHA-256c6e6b11381f31c99fdc52b3f871d432b6f16c9db8f6834b79c28800d267551d4 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23019/23F45768-3C96-4238-B0F2-656573EE5F49/iPhone14,3_17.3_21D5036c_Restore.ipsw Size7,836,334,362 bytes (7.84 GB)
iPhone 12 mini
Unsigned iPhone13,1 7.65 GB
Download
FilenameiPhone13,1_17.3_21D5036c_Restore.ipsw SHA-256f3c5c661e3333767c727885fe177bfbe36186597aa36f6e44679869e11e4481e Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23116/79A4049E-C449-4391-9176-E1A1D95A6BC7/iPhone13,1_17.3_21D5036c_Restore.ipsw Size7,651,137,332 bytes (7.65 GB)
iPhone 12 Pro Max
Unsigned iPhone13,4 7.78 GB
Download
FilenameiPhone13,4_17.3_21D5036c_Restore.ipsw SHA-256878526f707ab50597355d1d616609be88047f8f4fff16fe29b04ed766356e5bf Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-22987/16042442-BB44-4508-A8BD-861FFD725907/iPhone13,4_17.3_21D5036c_Restore.ipsw Size7,783,735,588 bytes (7.78 GB)
iPhone 12
Unsigned iPhone13,2 7.83 GB
Download
FilenameiPhone13,2,iPhone13,3_17.3_21D5036c_Restore.ipsw SHA-256a92fcd3913715c8520b650f41729b5c378ae22ac65c42a579738438a301ff431 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23213/84E36D8D-F2B1-4F41-9D31-216A733F5E06/iPhone13,2,iPhone13,3_17.3_21D5036c_Restore.ipsw Size7,827,477,215 bytes (7.83 GB)
iPhone 12 Pro
Unsigned iPhone13,3 7.83 GB
Download
FilenameiPhone13,2,iPhone13,3_17.3_21D5036c_Restore.ipsw SHA-256a92fcd3913715c8520b650f41729b5c378ae22ac65c42a579738438a301ff431 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23213/84E36D8D-F2B1-4F41-9D31-216A733F5E06/iPhone13,2,iPhone13,3_17.3_21D5036c_Restore.ipsw Size7,827,477,215 bytes (7.83 GB)
iPhone SE (2nd generation)
Unsigned iPhone12,8 7.29 GB
Download
FilenameiPhone12,8_17.3_21D5036c_Restore.ipsw SHA-25656bf8887ed5a9a39a644a274cf8510f0a6566fae38b85c516fd2ae8662d763e0 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-22920/CD8ABEF5-BF72-4A51-867A-31536538EE55/iPhone12,8_17.3_21D5036c_Restore.ipsw Size7,290,481,006 bytes (7.29 GB)
iPhone 11
Unsigned iPhone12,1 7.32 GB
Download
FilenameiPhone12,1_17.3_21D5036c_Restore.ipsw SHA-256ec2193bfb1db0e87b7842decd6638c5447ee381d58ae67bd4064f3338ca232fb Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23103/EDA07DEB-EC40-47CD-89A4-E0CEA1CB76B5/iPhone12,1_17.3_21D5036c_Restore.ipsw Size7,316,546,484 bytes (7.32 GB)
iPhone 11 Pro
Unsigned iPhone12,3 7.46 GB
Download
FilenameiPhone12,3,iPhone12,5_17.3_21D5036c_Restore.ipsw SHA-2562262615e4c8b10dcb488e550630e212f8d83bf987824c6d3ee2e9b39d0de9a0a Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23176/8B8921E4-807D-4CF9-9B96-82053B4CF2A1/iPhone12,3,iPhone12,5_17.3_21D5036c_Restore.ipsw Size7,462,406,156 bytes (7.46 GB)
iPhone 11 Pro Max
Unsigned iPhone12,5 7.46 GB
Download
FilenameiPhone12,3,iPhone12,5_17.3_21D5036c_Restore.ipsw SHA-2562262615e4c8b10dcb488e550630e212f8d83bf987824c6d3ee2e9b39d0de9a0a Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23176/8B8921E4-807D-4CF9-9B96-82053B4CF2A1/iPhone12,3,iPhone12,5_17.3_21D5036c_Restore.ipsw Size7,462,406,156 bytes (7.46 GB)
iPhone XR
Unsigned iPhone11,8 7.44 GB
Download
FilenameiPhone11,8_17.3_21D5036c_Restore.ipsw SHA-25688dee6b17a589af9db07c1e8cbf68f1d9832413f817fac3dafc3aeecfda136d1 Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23109/52DF613B-7440-45AA-BF67-1297592D5E17/iPhone11,8_17.3_21D5036c_Restore.ipsw Size7,437,969,552 bytes (7.44 GB)
iPhone XS
Unsigned iPhone11,2 7.62 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6_17.3_21D5036c_Restore.ipsw SHA-2563934ae0404ca5de2b3d79f6a06369ac93c5944713164096b0c2e09eec6c597de Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23126/9C714267-5E86-4F04-A1D2-F5A662A967DD/iPhone11,2,iPhone11,4,iPhone11,6_17.3_21D5036c_Restore.ipsw Size7,618,119,695 bytes (7.62 GB)
iPhone XS Max
Unsigned iPhone11,6 7.62 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6_17.3_21D5036c_Restore.ipsw SHA-2563934ae0404ca5de2b3d79f6a06369ac93c5944713164096b0c2e09eec6c597de Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23126/9C714267-5E86-4F04-A1D2-F5A662A967DD/iPhone11,2,iPhone11,4,iPhone11,6_17.3_21D5036c_Restore.ipsw Size7,618,119,695 bytes (7.62 GB)
iPhone XS Max (China mainland)
Unsigned iPhone11,4 7.62 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6_17.3_21D5036c_Restore.ipsw SHA-2563934ae0404ca5de2b3d79f6a06369ac93c5944713164096b0c2e09eec6c597de Direct URLhttps://updates.cdn-apple.com/2023WinterSeed/fullrestores/052-23126/9C714267-5E86-4F04-A1D2-F5A662A967DD/iPhone11,2,iPhone11,4,iPhone11,6_17.3_21D5036c_Restore.ipsw Size7,618,119,695 bytes (7.62 GB)
Version
iOS 17.3 beta 2
Build
21D5036c
Released
January 3, 2024
Channel
Developer & public beta
Previous
iOS 17.2.1
Next
iOS 17.3 beta 3

How to install iOS 17.3 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 17.3 beta 2 today?

Not at the moment — Apple has stopped signing 21D5036c, 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.