iOS 17

IPSW · iOS

iOS 17.4.1 IPSW Download (21E237)

Build 21E237, released March 26, 2024 — restore images for 25 iPhones, straight from Apple's servers.

Release Build 21E237 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_21E237_Restore.ipsw SHA-256 a3ba3126c42427685306e5edcc7621947ca27e6b995f2bda04748efe5d858470
Download
iPhone 15 Plus
Unsigned iPhone15,5 8.03 GB
iPhone15,5_17.4.1_21E237_Restore.ipsw SHA-256 eff22470cc524aa4d2971b90fbbb4f22c99f914022eb0b9ea93ba2f897967861
Download
iPhone 15 Pro
Unsigned iPhone16,1 8.22 GB
iPhone16,1_17.4.1_21E237_Restore.ipsw SHA-256 cc7db967392ce27b41efe348d226953b2d887d26bbced88c16ed16325293e146
Download
iPhone 15 Pro Max
Unsigned iPhone16,2 8.22 GB
iPhone16,2_17.4.1_21E237_Restore.ipsw SHA-256 14eb9492d54aaeadc17e663d3e23dd885b0c14e33fbb30d904f4d7e3952bb05f
Download
iPhone 14 Plus
Unsigned iPhone14,8 7.82 GB
iPhone14,8_17.4.1_21E237_Restore.ipsw SHA-256 10f8b58d664ef4510741e1d19fec833bc0e68659e11e6cb10c85d744c98e3f6e
Download
iPhone 14
Unsigned iPhone14,7 7.82 GB
iPhone14,7_17.4.1_21E237_Restore.ipsw SHA-256 4fdd5ff95ec8f7edc45a30ebc9a5f1bf72684d520bae4254c0d78676ac09c747
Download
iPhone 14 Pro
Unsigned iPhone15,2 7.98 GB
iPhone15,2_17.4.1_21E237_Restore.ipsw SHA-256 31fc32770b2533c7d5aefe437899958a6861376c40bcc816ab5d93dd8967fb60
Download
iPhone 14 Pro Max
Unsigned iPhone15,3 7.96 GB
iPhone15,3_17.4.1_21E237_Restore.ipsw SHA-256 9a6e33084181773de72588c9d080a399ab777ff32c0f70c3190778d80d8082da
Download
iPhone SE (3rd generation)
Unsigned iPhone14,6 7.56 GB
iPhone14,6_17.4.1_21E237_Restore.ipsw SHA-256 92a4f9dd3ae05c13085f764562ef4b3d080aa4b5514992848a9e794ad21a5a84
Download
iPhone 13
Unsigned iPhone14,5 7.77 GB
iPhone14,5_17.4.1_21E237_Restore.ipsw SHA-256 e433a6a0ca2fac8ebb84798d2f54e873f5510be921301f091c9afa36573d247c
Download
iPhone 13 mini
Unsigned iPhone14,4 7.80 GB
iPhone14,4_17.4.1_21E237_Restore.ipsw SHA-256 99b60fa27ca6b2807a41facb952e7ea390e03d02f39e2567bbc3e4dd64d37fee
Download
iPhone 13 Pro
Unsigned iPhone14,2 7.89 GB
iPhone14,2_17.4.1_21E237_Restore.ipsw SHA-256 9c19337e5cae70d57f35f28ec3843e719e3115f3387bd80d5e4e1209d0f79c2d
Download
iPhone 13 Pro Max
Unsigned iPhone14,3 7.89 GB
iPhone14,3_17.4.1_21E237_Restore.ipsw SHA-256 006a3c5a137d0e638ae01759ddc7ce6de10d5e26e2b86baa844035c886afa22a
Download
iPhone 12 mini
Unsigned iPhone13,1 7.71 GB
iPhone13,1_17.4.1_21E237_Restore.ipsw SHA-256 17ca077aba3dd996d067dc09d9f8b8c2c24ef5812757d983cfc2f89cb1116dce
Download
iPhone 12 Pro Max
Unsigned iPhone13,4 7.84 GB
iPhone13,4_17.4.1_21E237_Restore.ipsw SHA-256 ea78babf5c619edc80a745c2d73244296bd8c2546586d3f983ca2c6013bf9cc2
Download
iPhone 12
Unsigned iPhone13,2 7.89 GB
iPhone13,2,iPhone13,3_17.4.1_21E237_Restore.ipsw SHA-256 4c2d72d28b67f0a72739fa81e50a99a135ecfda7c0a4ec051f58445ec70193cc
Download
iPhone 12 Pro
Unsigned iPhone13,3 7.89 GB
iPhone13,2,iPhone13,3_17.4.1_21E237_Restore.ipsw SHA-256 4c2d72d28b67f0a72739fa81e50a99a135ecfda7c0a4ec051f58445ec70193cc
Download
iPhone SE (2nd generation)
Unsigned iPhone12,8 7.35 GB
iPhone12,8_17.4.1_21E237_Restore.ipsw SHA-256 a15f423a36e0c027591537f644367276f0a474b1568eaa76479bfd969666a6e6
Download
iPhone 11
Unsigned iPhone12,1 7.37 GB
iPhone12,1_17.4.1_21E237_Restore.ipsw SHA-256 b0f60da0d1e83ac418c7df4885aa77f8a6b05040636ae55c5a62992dddd1a0c6
Download
iPhone 11 Pro
Unsigned iPhone12,3 7.52 GB
iPhone12,3,iPhone12,5_17.4.1_21E237_Restore.ipsw SHA-256 c96337f870f88768683b2fdff04da6b01f1f734578b1af8b63695c44e8013835
Download
iPhone 11 Pro Max
Unsigned iPhone12,5 7.52 GB
iPhone12,3,iPhone12,5_17.4.1_21E237_Restore.ipsw SHA-256 c96337f870f88768683b2fdff04da6b01f1f734578b1af8b63695c44e8013835
Download
iPhone XR
Unsigned iPhone11,8 7.49 GB
iPhone11,8_17.4.1_21E237_Restore.ipsw SHA-256 c69620c177757015dc2e1892ee24e2a95c72b0c188c472b17585295ed287a497
Download
iPhone XS
Unsigned iPhone11,2 7.68 GB
iPhone11,2,iPhone11,4,iPhone11,6_17.4.1_21E237_Restore.ipsw SHA-256 361a8aea877806be1f5b6b5ab9e7d1148a814948dbeaa0c09e1b2839b98de477
Download
iPhone XS Max
Unsigned iPhone11,6 7.68 GB
iPhone11,2,iPhone11,4,iPhone11,6_17.4.1_21E237_Restore.ipsw SHA-256 361a8aea877806be1f5b6b5ab9e7d1148a814948dbeaa0c09e1b2839b98de477
Download
iPhone XS Max (China mainland)
Unsigned iPhone11,4 7.68 GB
iPhone11,2,iPhone11,4,iPhone11,6_17.4.1_21E237_Restore.ipsw SHA-256 361a8aea877806be1f5b6b5ab9e7d1148a814948dbeaa0c09e1b2839b98de477
Download
Version
iOS 17.4.1
Build
21E237
Released
March 26, 2024
Channel
Public release
Previous
iOS 17.4.1
Next
iOS 17.5 beta

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 21E237, 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.