iOS 17

IPSW · iOS

iOS 17.4.1 IPSW Download (21E236)

Build 21E236, released March 21, 2024 — restore images for 25 iPhones, straight from Apple's servers.

Release Build 21E236 Size 7.35 GB – 8.22 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 12, 2026.

Choose your iPhone

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

iPhone 15
Unsigned iPhone15,4 8.03 GB
iPhone15,4_17.4.1_21E236_Restore.ipsw SHA-256 17224aed4008a4d4b0467f16861ac3db9ab1b94d10c408960b5f5501511d5efd
Download
iPhone 15 Plus
Unsigned iPhone15,5 8.03 GB
iPhone15,5_17.4.1_21E236_Restore.ipsw SHA-256 bbf6e86853cc1dd24277eb3b8c6f26381f3b2a6521fc86eab81ac307c8ab0f95
Download
iPhone 15 Pro
Unsigned iPhone16,1 8.22 GB
iPhone16,1_17.4.1_21E236_Restore.ipsw SHA-256 3290eb2541ece08eb99691856459207b604415ccb7a6df7266c51e939f57cb50
Download
iPhone 15 Pro Max
Unsigned iPhone16,2 8.22 GB
iPhone16,2_17.4.1_21E236_Restore.ipsw SHA-256 a350269fba42d7c0805b8b797812613f0e8b6c80fda6ca9bc10eb5f4cbbaa599
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iPhone 14 Plus
Unsigned iPhone14,8 7.82 GB
iPhone14,8_17.4.1_21E236_Restore.ipsw SHA-256 04a3831d76131d6aab5b58c12407f30e2285d2eabde791a6049ae4864657e10f
Download
iPhone 14
Unsigned iPhone14,7 7.82 GB
iPhone14,7_17.4.1_21E236_Restore.ipsw SHA-256 7d188f6ad9be036fd195dae804d78dfea6b84265a7fedcd3800b8d1e4dbc8b99
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iPhone 14 Pro
Unsigned iPhone15,2 7.98 GB
iPhone15,2_17.4.1_21E236_Restore.ipsw SHA-256 31dc7abf322cbf6d44e971a075139b9f3525cd14f76fc6ae701b8bc02af48287
Download
iPhone 14 Pro Max
Unsigned iPhone15,3 7.96 GB
iPhone15,3_17.4.1_21E236_Restore.ipsw SHA-256 99a9fd4daa19e90bfb80a5cc68674f9324373623c46a66e33736a7de92a3a615
Download
iPhone SE (3rd generation)
Unsigned iPhone14,6 7.56 GB
iPhone14,6_17.4.1_21E236_Restore.ipsw SHA-256 f9b1ff691e9e7a6a7509873e151e4a493afb518b36829fabf786c1a4ced2a9b1
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iPhone 13
Unsigned iPhone14,5 7.77 GB
iPhone14,5_17.4.1_21E236_Restore.ipsw SHA-256 828167a99552c9d8af498c88c4ea58fd5221fd4730dfc7f07fe8967929f95826
Download
iPhone 13 mini
Unsigned iPhone14,4 7.80 GB
iPhone14,4_17.4.1_21E236_Restore.ipsw SHA-256 14fecf95ecc0ff9197c9e7f73de669b14ce542f00639541910e5feef79bedc5c
Download
iPhone 13 Pro
Unsigned iPhone14,2 7.90 GB
iPhone14,2_17.4.1_21E236_Restore.ipsw SHA-256 cdcca407778d2ba0ac0d4219b03c52eab337139099c79c0b5f4f89d3ce1ae873
Download
iPhone 13 Pro Max
Unsigned iPhone14,3 7.89 GB
iPhone14,3_17.4.1_21E236_Restore.ipsw SHA-256 f724b47ffd8edc1c5bca3dcdd77f19d6bcbc976075b8a172c992213247d7059a
Download
iPhone 12 mini
Unsigned iPhone13,1 7.71 GB
iPhone13,1_17.4.1_21E236_Restore.ipsw SHA-256 5f8aafd50c432734a611824bf41a8ad8726d278ab53b639f65a3624ad1c62511
Download
iPhone 12 Pro Max
Unsigned iPhone13,4 7.84 GB
iPhone13,4_17.4.1_21E236_Restore.ipsw SHA-256 4d704ca102901e77d6a70f0faf4429211d9d28b91f758e7e7e04eaf9cff3498b
Download
iPhone 12
Unsigned iPhone13,2 7.89 GB
iPhone13,2,iPhone13,3_17.4.1_21E236_Restore.ipsw SHA-256 605ba800e02361df72db658059e3fb0e8f401d9853e1c23c374cdad58216ced7
Download
iPhone 12 Pro
Unsigned iPhone13,3 7.89 GB
iPhone13,2,iPhone13,3_17.4.1_21E236_Restore.ipsw SHA-256 605ba800e02361df72db658059e3fb0e8f401d9853e1c23c374cdad58216ced7
Download
iPhone SE (2nd generation)
Unsigned iPhone12,8 7.35 GB
iPhone12,8_17.4.1_21E236_Restore.ipsw SHA-256 0eb88c8e755a7777593c60cb7ac39a3dbe04b07909375204750e83a2642073a6
Download
iPhone 11
Unsigned iPhone12,1 7.37 GB
iPhone12,1_17.4.1_21E236_Restore.ipsw SHA-256 9c9f61f7df613cdf085062515b7d893897bc80b4c7baa7e9255e29355d6e96e8
Download
iPhone 11 Pro
Unsigned iPhone12,3 7.52 GB
iPhone12,3,iPhone12,5_17.4.1_21E236_Restore.ipsw SHA-256 8c2965d59b92d17ecc28d4edf56f885f52a1944bcb5455791a9717a86038fd3e
Download
iPhone 11 Pro Max
Unsigned iPhone12,5 7.52 GB
iPhone12,3,iPhone12,5_17.4.1_21E236_Restore.ipsw SHA-256 8c2965d59b92d17ecc28d4edf56f885f52a1944bcb5455791a9717a86038fd3e
Download
iPhone XR
Unsigned iPhone11,8 7.49 GB
iPhone11,8_17.4.1_21E236_Restore.ipsw SHA-256 4ce7a0e130fddb5dbd699972853f10134c44e4fe2bc6301dc32272b305a43a47
Download
iPhone XS
Unsigned iPhone11,2 7.68 GB
iPhone11,2,iPhone11,4,iPhone11,6_17.4.1_21E236_Restore.ipsw SHA-256 4ce6ab032c4d366ce2d4aca4356bc68490fc3ba4de153fa994db56b46a07f521
Download
iPhone XS Max
Unsigned iPhone11,6 7.68 GB
iPhone11,2,iPhone11,4,iPhone11,6_17.4.1_21E236_Restore.ipsw SHA-256 4ce6ab032c4d366ce2d4aca4356bc68490fc3ba4de153fa994db56b46a07f521
Download
iPhone XS Max (China mainland)
Unsigned iPhone11,4 7.68 GB
iPhone11,2,iPhone11,4,iPhone11,6_17.4.1_21E236_Restore.ipsw SHA-256 4ce6ab032c4d366ce2d4aca4356bc68490fc3ba4de153fa994db56b46a07f521
Download
Version
iOS 17.4.1
Build
21E236
Released
March 21, 2024
Channel
Public release
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iOS 16.7.7
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iOS 17.4.1

How to install iOS 17.4.1 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 17.4.1 today?

Not at the moment — Apple has stopped signing 21E236, 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.