iOS 17

IPSW · iOS

iOS 17.3 beta 3 IPSW Download (21D5044a)

Build 21D5044a, released January 9, 2024 — restore images for 25 iPhones, straight from Apple's servers.

Beta Build 21D5044a 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 12, 2026.

Choose your iPhone

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

iPhone 15
Unsigned iPhone15,4 7.94 GB
iPhone15,4_17.3_21D5044a_Restore.ipsw SHA-256 33ba76a4c8399c94f2c51b7e5e0e3ceb57916c86d2b085706ba0c3531671a9dc
Download
iPhone 15 Plus
Unsigned iPhone15,5 7.94 GB
iPhone15,5_17.3_21D5044a_Restore.ipsw SHA-256 5c00369e4588c556340e4fed3523a2285e2b86ae67ef44ee6a25036ca72fe0ad
Download
iPhone 15 Pro
Unsigned iPhone16,1 8.13 GB
iPhone16,1_17.3_21D5044a_Restore.ipsw SHA-256 d0f6f411497d5f980662db9c4227f1dfc0c6242daee590a5ec19bb1f650044f1
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iPhone 15 Pro Max
Unsigned iPhone16,2 8.13 GB
iPhone16,2_17.3_21D5044a_Restore.ipsw SHA-256 f17c526335d8c4515f9d1e72c5bfa94129fbd3cd34f5cf1bc508de198ca2fda3
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iPhone 14 Plus
Unsigned iPhone14,8 7.76 GB
iPhone14,8_17.3_21D5044a_Restore.ipsw SHA-256 43fcb4c043bcbbd386c07ecf276868c1ddef106a6372d01f30243c909e5d3146
Download
iPhone 14
Unsigned iPhone14,7 7.76 GB
iPhone14,7_17.3_21D5044a_Restore.ipsw SHA-256 bad232295fa684dbfbb6e7bf78685d6982f594d7e85f7da62af22e487f60211b
Download
iPhone 14 Pro
Unsigned iPhone15,2 7.92 GB
iPhone15,2_17.3_21D5044a_Restore.ipsw SHA-256 b745a932a1039af56e1cee6a5f674f824e86eae97f3892e54f922a3aed2d0049
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iPhone 14 Pro Max
Unsigned iPhone15,3 7.90 GB
iPhone15,3_17.3_21D5044a_Restore.ipsw SHA-256 92aca2b33018894610f881560e5b0e6174c7d934e8de63bc3895ace400280936
Download
iPhone SE (3rd generation)
Unsigned iPhone14,6 7.50 GB
iPhone14,6_17.3_21D5044a_Restore.ipsw SHA-256 cb785afa3883178134fa49412eaf2fc58562b8e7540fbaf68ef2bee3bc77d318
Download
iPhone 13
Unsigned iPhone14,5 7.71 GB
iPhone14,5_17.3_21D5044a_Restore.ipsw SHA-256 3cf077199cb950825b9e1922e61a99093143c9b04ba46547595e4600f779a170
Download
iPhone 13 mini
Unsigned iPhone14,4 7.74 GB
iPhone14,4_17.3_21D5044a_Restore.ipsw SHA-256 3ffd1e2ccef9b959fb733e02fedc147e77020639834ec0d9a1f5a5c6d07d244f
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iPhone 13 Pro
Unsigned iPhone14,2 7.83 GB
iPhone14,2_17.3_21D5044a_Restore.ipsw SHA-256 28224f0ddc580767bc61aedd703c734911f3f0b2fb7e19de493f327a3e7c3eb6
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iPhone 13 Pro Max
Unsigned iPhone14,3 7.84 GB
iPhone14,3_17.3_21D5044a_Restore.ipsw SHA-256 7f3687c77ac7d6fb4edbffe6f7012039ee00330046c4828f2cd99df20294a2e8
Download
iPhone 12 mini
Unsigned iPhone13,1 7.65 GB
iPhone13,1_17.3_21D5044a_Restore.ipsw SHA-256 4c5f0a36359666e874018d8077220c307d71c8faf43b38f2c0634423304a78ce
Download
iPhone 12 Pro Max
Unsigned iPhone13,4 7.78 GB
iPhone13,4_17.3_21D5044a_Restore.ipsw SHA-256 16ef007a9f55c406029576b81939649a2f538701b0b26641eaa9eb120159d557
Download
iPhone 12
Unsigned iPhone13,2 7.83 GB
iPhone13,2,iPhone13,3_17.3_21D5044a_Restore.ipsw SHA-256 d2129b039c279a15be5844e8869c9159ec6d70a81d44ac85577a57d654deea7f
Download
iPhone 12 Pro
Unsigned iPhone13,3 7.83 GB
iPhone13,2,iPhone13,3_17.3_21D5044a_Restore.ipsw SHA-256 d2129b039c279a15be5844e8869c9159ec6d70a81d44ac85577a57d654deea7f
Download
iPhone SE (2nd generation)
Unsigned iPhone12,8 7.29 GB
iPhone12,8_17.3_21D5044a_Restore.ipsw SHA-256 d89548e32d47085e998ec8e4b4f742930fd647e0cecec4d219c92728b5ad48d8
Download
iPhone 11
Unsigned iPhone12,1 7.31 GB
iPhone12,1_17.3_21D5044a_Restore.ipsw SHA-256 7321cc85b370ba0c3a9b7f976e1b194769424262a9ee848b95cff94693de6ece
Download
iPhone 11 Pro
Unsigned iPhone12,3 7.46 GB
iPhone12,3,iPhone12,5_17.3_21D5044a_Restore.ipsw SHA-256 8bd8aa49faa5eba39a78c7493404364d221c6d2477e55b87eb7ea5cee18a5edc
Download
iPhone 11 Pro Max
Unsigned iPhone12,5 7.46 GB
iPhone12,3,iPhone12,5_17.3_21D5044a_Restore.ipsw SHA-256 8bd8aa49faa5eba39a78c7493404364d221c6d2477e55b87eb7ea5cee18a5edc
Download
iPhone XR
Unsigned iPhone11,8 7.44 GB
iPhone11,8_17.3_21D5044a_Restore.ipsw SHA-256 e9483bb88b45160a180b226c6c6b320eaf31210da513147512f79f83fe218127
Download
iPhone XS
Unsigned iPhone11,2 7.62 GB
iPhone11,2,iPhone11,4,iPhone11,6_17.3_21D5044a_Restore.ipsw SHA-256 60eccda4ede1251232a918279e6c106736258cef0ea5bf3aecde68f455e5e785
Download
iPhone XS Max
Unsigned iPhone11,6 7.62 GB
iPhone11,2,iPhone11,4,iPhone11,6_17.3_21D5044a_Restore.ipsw SHA-256 60eccda4ede1251232a918279e6c106736258cef0ea5bf3aecde68f455e5e785
Download
iPhone XS Max (China mainland)
Unsigned iPhone11,4 7.62 GB
iPhone11,2,iPhone11,4,iPhone11,6_17.3_21D5044a_Restore.ipsw SHA-256 60eccda4ede1251232a918279e6c106736258cef0ea5bf3aecde68f455e5e785
Download
Version
iOS 17.3 beta 3
Build
21D5044a
Released
January 9, 2024
Channel
Developer & public beta
Previous
iOS 17.3 beta 2
Next
iOS 15.8.1

How to install iOS 17.3 beta 3 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 3 today?

Not at the moment — Apple has stopped signing 21D5044a, 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.