iOS 17

IPSW · iOS

iOS 17.4 beta 4 IPSW Download (21E5209b)

Build 21E5209b, released February 20, 2024 — restore images for 24 iPhones, straight from Apple's servers.

Beta Build 21E5209b Size 7.36 GB – 8.21 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

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

iPhone 15
Unsigned iPhone15,4 8.02 GB
iPhone15,4_17.4_21E5209b_Restore.ipsw SHA-256 b4bfe5caac7c0d2c341c349f64efb2aae0d99f08df769a8bc50b2478c61840de
Download
iPhone 15 Plus
Unsigned iPhone15,5 8.02 GB
iPhone15,5_17.4_21E5209b_Restore.ipsw SHA-256 03c27092548ab9f560551b857f395a681ab3e27819362bc10691bc98c7efc7df
Download
iPhone 15 Pro
Unsigned iPhone16,1 8.21 GB
iPhone16,1_17.4_21E5209b_Restore.ipsw SHA-256 a55f3f00df819b65977c653959fb798b37db70ca0744615cd7cce702de8362fa
Download
iPhone 15 Pro Max
Unsigned iPhone16,2 8.21 GB
iPhone16,2_17.4_21E5209b_Restore.ipsw SHA-256 4c3d20e6c321c8fd3314a907a3f986cbca07b8a994ac4da7f8152f5c8e4a6478
Download
iPhone 14 Plus
Unsigned iPhone14,8 7.81 GB
iPhone14,8_17.4_21E5209b_Restore.ipsw SHA-256 62bd7e71b95400b9722a0068942a91a41e2b1c7d703c9cc2355d04c8a786b069
Download
iPhone 14
Unsigned iPhone14,7 7.81 GB
iPhone14,7_17.4_21E5209b_Restore.ipsw SHA-256 488117ddb33ac27f415a2e8fe89c8a47548756acdee66cf7cbf78b14a1229bdb
Download
iPhone 14 Pro
Unsigned iPhone15,2 7.97 GB
iPhone15,2_17.4_21E5209b_Restore.ipsw SHA-256 02974a3779453da1e742ce4d070b8015a3e020769802737434dae8683c76780a
Download
iPhone 14 Pro Max
Unsigned iPhone15,3 7.95 GB
iPhone15,3_17.4_21E5209b_Restore.ipsw SHA-256 31d51774b00339717df79856d8926ded436e43a1b52285628ddad36d7ae520c6
Download
iPhone SE (3rd generation)
Unsigned iPhone14,6 7.54 GB
iPhone14,6_17.4_21E5209b_Restore.ipsw SHA-256 7966308f64ef3c0a8d278037c13342f35d6122693d996578457bcd9014bec674
Download
iPhone 13
Unsigned iPhone14,5 7.76 GB
iPhone14,5_17.4_21E5209b_Restore.ipsw SHA-256 d34bd4feb1579f657cabb2317d45fe36b9a0cb7875c107a9c3b5315e7d063f13
Download
iPhone 13 mini
Unsigned iPhone14,4 7.78 GB
iPhone14,4_17.4_21E5209b_Restore.ipsw SHA-256 be8afa109e330854c2f9970bcdb5f7d196c5647a4b623cf364829e50e6163e18
Download
iPhone 13 Pro
Unsigned iPhone14,2 7.88 GB
iPhone14,2_17.4_21E5209b_Restore.ipsw SHA-256 bbeba9f5d2050e0962eb94cc989aefda75771e75908979921dda311b12f63bbf
Download
iPhone 13 Pro Max
Unsigned iPhone14,3 7.88 GB
iPhone14,3_17.4_21E5209b_Restore.ipsw SHA-256 78f9c637c5ef542ebac0ec7a27ce67db6148a9d3c86f5e2221e44c1fdeb614b6
Download
iPhone 12 mini
Unsigned iPhone13,1 7.70 GB
iPhone13,1_17.4_21E5209b_Restore.ipsw SHA-256 bc714280294fe5c892730231031484a30d3f534e47429c676fd182addacd4dd2
Download
iPhone 12 Pro Max
Unsigned iPhone13,4 7.83 GB
iPhone13,4_17.4_21E5209b_Restore.ipsw SHA-256 59e85542649172fc19af60830abb2db23210adf7f5afbbe45b9810829a859947
Download
iPhone 12
Unsigned iPhone13,2 7.88 GB
iPhone13,2,iPhone13,3_17.4_21E5209b_Restore.ipsw SHA-256 164615496302fc525d08f08d3d09f382b4695f530f878c20a9b8b1c09cc6925b
Download
iPhone 12 Pro
Unsigned iPhone13,3 7.88 GB
iPhone13,2,iPhone13,3_17.4_21E5209b_Restore.ipsw SHA-256 164615496302fc525d08f08d3d09f382b4695f530f878c20a9b8b1c09cc6925b
Download
iPhone 11
Unsigned iPhone12,1 7.36 GB
iPhone12,1_17.4_21E5209b_Restore.ipsw SHA-256 18f9082ccedd37e3ecabe3b2c098d38cbc5f54d70905d5276de7152895a27e09
Download
iPhone 11 Pro
Unsigned iPhone12,3 7.51 GB
iPhone12,3,iPhone12,5_17.4_21E5209b_Restore.ipsw SHA-256 525e08792c435f2328f2396d69e3c3995d5c910ced5bea3c4e2414fc8376ec51
Download
iPhone 11 Pro Max
Unsigned iPhone12,5 7.51 GB
iPhone12,3,iPhone12,5_17.4_21E5209b_Restore.ipsw SHA-256 525e08792c435f2328f2396d69e3c3995d5c910ced5bea3c4e2414fc8376ec51
Download
iPhone XR
Unsigned iPhone11,8 7.48 GB
iPhone11,8_17.4_21E5209b_Restore.ipsw SHA-256 149a51a9ac273535ea006bee0ac3ff385f83cfb89e79d175baadf0cf0f78f7a7
Download
iPhone XS
Unsigned iPhone11,2 7.66 GB
iPhone11,2,iPhone11,4,iPhone11,6_17.4_21E5209b_Restore.ipsw SHA-256 5c19f86d3c8ea80ce06af7e99751f63524d6c5a09c5845df6c9fb3502bb0e47b
Download
iPhone XS Max
Unsigned iPhone11,6 7.66 GB
iPhone11,2,iPhone11,4,iPhone11,6_17.4_21E5209b_Restore.ipsw SHA-256 5c19f86d3c8ea80ce06af7e99751f63524d6c5a09c5845df6c9fb3502bb0e47b
Download
iPhone XS Max (China mainland)
Unsigned iPhone11,4 7.66 GB
iPhone11,2,iPhone11,4,iPhone11,6_17.4_21E5209b_Restore.ipsw SHA-256 5c19f86d3c8ea80ce06af7e99751f63524d6c5a09c5845df6c9fb3502bb0e47b
Download
Version
iOS 17.4 beta 4
Build
21E5209b
Released
February 20, 2024
Channel
Developer & public beta
Previous
iOS 17.4 beta 3
Next
iOS 17.4 RC

How to install iOS 17.4 beta 4 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 beta 4 today?

Not at the moment — Apple has stopped signing 21E5209b, 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.