iOS 17

IPSW · iOS

iOS 17.1 beta IPSW Download (21B5045h)

Build 21B5045h, released September 27, 2023 — restore images for 25 iPhones, straight from Apple's servers.

Beta Build 21B5045h Size 7.27 GB – 8.18 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 8.00 GB
Download
FilenameiPhone15,4_17.1_21B5045h_Restore.ipsw SHA-25657ed6f9244979333a747e880e36f12fd19306db79384a627410ecd2b049b468e Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65413/2D8300B5-D0C0-4CA6-AE98-7B90748DD1DC/iPhone15,4_17.1_21B5045h_Restore.ipsw Size7,995,574,231 bytes (8.00 GB)
iPhone 15 Plus
Unsigned iPhone15,5 8.00 GB
Download
FilenameiPhone15,5_17.1_21B5045h_Restore.ipsw SHA-256f9cd0ad0e90775e5bc9d51ca326414348cf2a185851a77310bdc151deb31d935 Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65123/82461885-48BF-46CE-8F3C-6364B080AB96/iPhone15,5_17.1_21B5045h_Restore.ipsw Size7,996,440,756 bytes (8.00 GB)
iPhone 15 Pro
Unsigned iPhone16,1 8.18 GB
Download
FilenameiPhone16,1_17.1_21B5045h_Restore.ipsw SHA-2567aaf5f5e543cf620e0d1680478f1fbebb3fa69e4fd19cca66b4511272f684fe9 Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65274/8E7D256A-37B9-4196-9B63-07EDB0B15F5C/iPhone16,1_17.1_21B5045h_Restore.ipsw Size8,179,280,865 bytes (8.18 GB)
iPhone 15 Pro Max
Unsigned iPhone16,2 8.18 GB
Download
FilenameiPhone16,2_17.1_21B5045h_Restore.ipsw SHA-256bf058fa746416273e4674846c66ab7ac8762a6654c6b9a58f895e92c5eba1805 Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65174/89AEC85E-F0F8-4A72-B880-70570E6ABAD9/iPhone16,2_17.1_21B5045h_Restore.ipsw Size8,180,391,252 bytes (8.18 GB)
iPhone 14 Plus
Unsigned iPhone14,8 7.81 GB
Download
FilenameiPhone14,8_17.1_21B5045h_Restore.ipsw SHA-256f2d4e0d1e8dd1910b617f331e432c44d2d3eb4d3bf59f7a33420c6bb0bdf571b Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65148/8FFF931A-BE17-4998-A7CA-0CBD88687EC1/iPhone14,8_17.1_21B5045h_Restore.ipsw Size7,811,396,275 bytes (7.81 GB)
iPhone 14
Unsigned iPhone14,7 7.81 GB
Download
FilenameiPhone14,7_17.1_21B5045h_Restore.ipsw SHA-2563a7968698d741dbb11865a2e331499de83bfc5fc9f56bc3eb665a8006c114b28 Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65371/0C0934C2-4928-46C3-816E-9BD6BD1160F3/iPhone14,7_17.1_21B5045h_Restore.ipsw Size7,812,357,824 bytes (7.81 GB)
iPhone 14 Pro
Unsigned iPhone15,2 7.97 GB
Download
FilenameiPhone15,2_17.1_21B5045h_Restore.ipsw SHA-256b992f24a3fb95d8a6f2147c07c6e608f74ef163cd494b1fc337aee8fba9feac6 Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65214/B6CD6476-CC13-4882-9AC6-F8BA251C22DD/iPhone15,2_17.1_21B5045h_Restore.ipsw Size7,973,037,483 bytes (7.97 GB)
iPhone 14 Pro Max
Unsigned iPhone15,3 7.95 GB
Download
FilenameiPhone15,3_17.1_21B5045h_Restore.ipsw SHA-256a879d603c182b1cf9ef42f18eb68d9811f64e0db28434928fb9a7a63d8afb0aa Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65322/51B2AE4F-0AC1-456D-9D8D-023B0B36181C/iPhone15,3_17.1_21B5045h_Restore.ipsw Size7,951,772,629 bytes (7.95 GB)
iPhone SE (3rd generation)
Unsigned iPhone14,6 7.49 GB
Download
FilenameiPhone14,6_17.1_21B5045h_Restore.ipsw SHA-256028533664d71d3045227d05595cd2927427419842b1ea128a4262a0cdb1eaa0d Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65383/023561AD-E25D-4E62-8CEB-A16722866062/iPhone14,6_17.1_21B5045h_Restore.ipsw Size7,493,076,995 bytes (7.49 GB)
iPhone 13
Unsigned iPhone14,5 7.74 GB
Download
FilenameiPhone14,5_17.1_21B5045h_Restore.ipsw SHA-2562e5c2fc62283c85d16f3acb340997a0c785c9e0a2712ad46c126b14298ec6a7b Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65207/7083215A-63EE-4275-B503-3370F76F4317/iPhone14,5_17.1_21B5045h_Restore.ipsw Size7,742,869,106 bytes (7.74 GB)
iPhone 13 mini
Unsigned iPhone14,4 7.77 GB
Download
FilenameiPhone14,4_17.1_21B5045h_Restore.ipsw SHA-256cdc8bcf354977021679f8d130bd4753941759da24d144330fb1c9e2ec1523d22 Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65409/0372C8A6-2257-4A0B-A774-98FBFC443610/iPhone14,4_17.1_21B5045h_Restore.ipsw Size7,766,664,108 bytes (7.77 GB)
iPhone 13 Pro
Unsigned iPhone14,2 7.86 GB
Download
FilenameiPhone14,2_17.1_21B5045h_Restore.ipsw SHA-2564c53f5a33c3e267fc89da836af5352ac6e29e306071acbaa6363bd725f29804e Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65285/BCE44282-8EBF-481F-AA27-7865A5ECB475/iPhone14,2_17.1_21B5045h_Restore.ipsw Size7,864,807,082 bytes (7.86 GB)
iPhone 13 Pro Max
Unsigned iPhone14,3 7.87 GB
Download
FilenameiPhone14,3_17.1_21B5045h_Restore.ipsw SHA-256e970d3b670f8ff576a186dfc9fc339825f0f4a069e35425e01a2aca6515537c2 Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65150/9F64561D-9591-441D-BA77-F8BD3B601759/iPhone14,3_17.1_21B5045h_Restore.ipsw Size7,865,559,394 bytes (7.87 GB)
iPhone 12 mini
Unsigned iPhone13,1 7.66 GB
Download
FilenameiPhone13,1_17.1_21B5045h_Restore.ipsw SHA-256dac92124edb1df55d9a6f66d5c39ebe08ca827505ec297b81041287cb33ada2d Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65280/8E066D6F-7D4A-4F5E-80A5-E50982A069BB/iPhone13,1_17.1_21B5045h_Restore.ipsw Size7,662,552,915 bytes (7.66 GB)
iPhone 12 Pro Max
Unsigned iPhone13,4 7.80 GB
Download
FilenameiPhone13,4_17.1_21B5045h_Restore.ipsw SHA-2562f4c272fc099de569e85f29fe422c40dd783ec93ae0b98775d2ae1d99ea80188 Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65416/F483FBFE-F55F-4B92-956B-7B66D04C7111/iPhone13,4_17.1_21B5045h_Restore.ipsw Size7,795,054,568 bytes (7.80 GB)
iPhone 12
Unsigned iPhone13,2 7.84 GB
Download
FilenameiPhone13,2,iPhone13,3_17.1_21B5045h_Restore.ipsw SHA-2563d5bbad774b24f42c06f1c64ffffad825ae85945ed371327ac1dd802ef4122b8 Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65112/E9BC19AE-72D0-41C4-8815-A4DA6ADB8F4B/iPhone13,2,iPhone13,3_17.1_21B5045h_Restore.ipsw Size7,838,023,815 bytes (7.84 GB)
iPhone 12 Pro
Unsigned iPhone13,3 7.84 GB
Download
FilenameiPhone13,2,iPhone13,3_17.1_21B5045h_Restore.ipsw SHA-2563d5bbad774b24f42c06f1c64ffffad825ae85945ed371327ac1dd802ef4122b8 Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65112/E9BC19AE-72D0-41C4-8815-A4DA6ADB8F4B/iPhone13,2,iPhone13,3_17.1_21B5045h_Restore.ipsw Size7,838,023,815 bytes (7.84 GB)
iPhone SE (2nd generation)
Unsigned iPhone12,8 7.27 GB
Download
FilenameiPhone12,8_17.1_21B5045h_Restore.ipsw SHA-2564b707348162a0f99187bc9131ae3ed3f37509f8f93803df554ba69053700cd0d Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65171/B5F27F24-062B-447C-BCD5-E44511B3C7B1/iPhone12,8_17.1_21B5045h_Restore.ipsw Size7,266,859,631 bytes (7.27 GB)
iPhone 11
Unsigned iPhone12,1 7.29 GB
Download
FilenameiPhone12,1_17.1_21B5045h_Restore.ipsw SHA-2565a7f91382495ef6d905ad24ba00cdf71b1e349665827c729a7ee188c104a1e52 Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65369/78153745-6D01-45FE-A8BF-470C08B6AF45/iPhone12,1_17.1_21B5045h_Restore.ipsw Size7,292,386,456 bytes (7.29 GB)
iPhone 11 Pro
Unsigned iPhone12,3 7.44 GB
Download
FilenameiPhone12,3,iPhone12,5_17.1_21B5045h_Restore.ipsw SHA-2561f9070f60910a9e9e37c2892b7ff680793afa718ef983ab34cdc2aed5cdb5448 Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65202/4A503A08-45A6-4E74-9C7E-C8C6950FF4D2/iPhone12,3,iPhone12,5_17.1_21B5045h_Restore.ipsw Size7,437,987,103 bytes (7.44 GB)
iPhone 11 Pro Max
Unsigned iPhone12,5 7.44 GB
Download
FilenameiPhone12,3,iPhone12,5_17.1_21B5045h_Restore.ipsw SHA-2561f9070f60910a9e9e37c2892b7ff680793afa718ef983ab34cdc2aed5cdb5448 Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65202/4A503A08-45A6-4E74-9C7E-C8C6950FF4D2/iPhone12,3,iPhone12,5_17.1_21B5045h_Restore.ipsw Size7,437,987,103 bytes (7.44 GB)
iPhone XR
Unsigned iPhone11,8 7.41 GB
Download
FilenameiPhone11,8_17.1_21B5045h_Restore.ipsw SHA-256084c3ef1389c109d970182e33f5bb860cdd5326b34832e7fc08dbfefd7b46ebc Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65284/AC159158-C093-4933-9766-D4DA72C28D15/iPhone11,8_17.1_21B5045h_Restore.ipsw Size7,410,221,172 bytes (7.41 GB)
iPhone XS
Unsigned iPhone11,2 7.59 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6_17.1_21B5045h_Restore.ipsw SHA-2561bc278b458b1de30783a5f623d1ef9ecb2a96be8bb0c6c29e9b9711eb5f6203c Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65314/0647B7F2-6E69-4383-AA7D-C6AA2D0B5D50/iPhone11,2,iPhone11,4,iPhone11,6_17.1_21B5045h_Restore.ipsw Size7,588,473,346 bytes (7.59 GB)
iPhone XS Max
Unsigned iPhone11,6 7.59 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6_17.1_21B5045h_Restore.ipsw SHA-2561bc278b458b1de30783a5f623d1ef9ecb2a96be8bb0c6c29e9b9711eb5f6203c Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65314/0647B7F2-6E69-4383-AA7D-C6AA2D0B5D50/iPhone11,2,iPhone11,4,iPhone11,6_17.1_21B5045h_Restore.ipsw Size7,588,473,346 bytes (7.59 GB)
iPhone XS Max (China mainland)
Unsigned iPhone11,4 7.59 GB
Download
FilenameiPhone11,2,iPhone11,4,iPhone11,6_17.1_21B5045h_Restore.ipsw SHA-2561bc278b458b1de30783a5f623d1ef9ecb2a96be8bb0c6c29e9b9711eb5f6203c Direct URLhttps://updates.cdn-apple.com/2023FallSeed/fullrestores/042-65314/0647B7F2-6E69-4383-AA7D-C6AA2D0B5D50/iPhone11,2,iPhone11,4,iPhone11,6_17.1_21B5045h_Restore.ipsw Size7,588,473,346 bytes (7.59 GB)
Version
iOS 17.1 beta
Build
21B5045h
Released
September 27, 2023
Channel
Developer & public beta
Previous
iOS 17.0.2
Next
iOS 17.1 beta 2

How to install iOS 17.1 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 17.1 beta today?

Not at the moment — Apple has stopped signing 21B5045h, 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.