IPSW · iOS
iOS 17.6 RC IPSW Download (21G79)
Build 21G79, released July 23, 2024 — restore images for 25 iPhones, straight from Apple's servers.
Choose your iPhone
25 devices. Each row is one file on Apple's CDN.
iPhone15,4 8.09 GBiPhone15,4_17.6_21G79_Restore.ipsw SHA-256 d3ba1649ef851719020e78283f6938778f350517f676041d05d03fbc64cfd564 
iPhone15,5 8.09 GBiPhone15,5_17.6_21G79_Restore.ipsw SHA-256 e92b5679daad48e831f28a0b2d3308d6d3ba062f44e8ebb2a307110f432c4bad 
iPhone16,1 8.28 GBiPhone16,1_17.6_21G79_Restore.ipsw SHA-256 99b5c935b6d97927191ddd1dfaa7143cf0b2e25e03c952e9b2aa4d55a61276ce 
iPhone16,2 8.28 GBiPhone16,2_17.6_21G79_Restore.ipsw SHA-256 e8a3447eda918d9d6c9bf41f3eba52ce3b26e4068614da677341e38616622ee0 
iPhone14,8 7.95 GBiPhone14,8_17.6_21G79_Restore.ipsw SHA-256 639e44b8dd289accf7da3bc3fb0dcd3557ed1921d983fc987901b3c834e73e5f 
iPhone14,7 7.95 GBiPhone14,7_17.6_21G79_Restore.ipsw SHA-256 674b88ad8aaff40cd065aab920bbaeaa536b105eed524ed9fd8ac3dd39c8541a 
iPhone15,2 8.11 GBiPhone15,2_17.6_21G79_Restore.ipsw SHA-256 8b53e74bed363aaaac82258d0077b8e83fcc99a8340f3483bb9e99a5fdec4143 
iPhone15,3 8.09 GBiPhone15,3_17.6_21G79_Restore.ipsw SHA-256 9394b94d967e78ca2d96ac8efa843f59ed2a4d30791477fb0f7f9ea3ef9e9615 
iPhone14,6 7.67 GBiPhone14,6_17.6_21G79_Restore.ipsw SHA-256 5664ca1b8a815de7444c3adf8660d8cdc6e562638a070ea409e3b1887d2d202b 
iPhone14,5 7.89 GBiPhone14,5_17.6_21G79_Restore.ipsw SHA-256 68473eb4b95354b7bd08e737327339511b34817959f42cce1f8a30ca00181221 
iPhone14,4 7.92 GBiPhone14,4_17.6_21G79_Restore.ipsw SHA-256 8c4b266d141c4a194fc70868c1903be3474c9544a8279bbd3c5b0afe51163ec4 
iPhone14,2 8.01 GBiPhone14,2_17.6_21G79_Restore.ipsw SHA-256 6d980bd4c633809a717bd684079415f15b57bab70daf01a891ef19bf1934ebf1 
iPhone14,3 8.01 GBiPhone14,3_17.6_21G79_Restore.ipsw SHA-256 1aa3eb8f5a902893b5bc9f9b645b79f33ec60d33179af3ab2b1fe957b5b02715 
iPhone13,1 7.83 GBiPhone13,1_17.6_21G79_Restore.ipsw SHA-256 591fcd543de43c6a722e5532c476b2ac1352e7e0041f343cbd3daa1ee9d17801 
iPhone13,4 7.96 GBiPhone13,4_17.6_21G79_Restore.ipsw SHA-256 e5ba95929633ff37dbf6bea5dde34c3ebcbc26f737322f05c19511817150069c 
iPhone13,2 8.01 GBiPhone13,2,iPhone13,3_17.6_21G79_Restore.ipsw SHA-256 101344319abfe1d51b75ab63a8dbe8ed7be907f46c70b0827876f95a05755852 
iPhone13,3 8.01 GBiPhone13,2,iPhone13,3_17.6_21G79_Restore.ipsw SHA-256 101344319abfe1d51b75ab63a8dbe8ed7be907f46c70b0827876f95a05755852 
iPhone12,8 7.47 GBiPhone12,8_17.6_21G79_Restore.ipsw SHA-256 0096e3f96b5d46c0c5fa3de26712ae099098fdb71bbe567d2770356529415e2a 
iPhone12,1 7.50 GBiPhone12,1_17.6_21G79_Restore.ipsw SHA-256 77251d91ae796f5e06af2ee2d184acda94971d38d9abbd373345c23fa5d38cc5 
iPhone12,3 7.65 GBiPhone12,3,iPhone12,5_17.6_21G79_Restore.ipsw SHA-256 ed460550fe8772c46370b3fcf5a0cc8708bb0259b6b634cb3dccd70171babac9 
iPhone12,5 7.65 GBiPhone12,3,iPhone12,5_17.6_21G79_Restore.ipsw SHA-256 ed460550fe8772c46370b3fcf5a0cc8708bb0259b6b634cb3dccd70171babac9 
iPhone11,8 7.62 GBiPhone11,8_17.6_21G79_Restore.ipsw SHA-256 c5ce61e5df5486067eaa0cd8fb7076177eefe8dc303737007c3e823b98253f42 
iPhone11,2 7.80 GBiPhone11,2,iPhone11,4,iPhone11,6_17.6_21G79_Restore.ipsw SHA-256 aed862a0a3285f0c97f7de94601a7d25e00c0f46cd87d3b223b6f9c5203765e6 
iPhone11,6 7.80 GBiPhone11,2,iPhone11,4,iPhone11,6_17.6_21G79_Restore.ipsw SHA-256 aed862a0a3285f0c97f7de94601a7d25e00c0f46cd87d3b223b6f9c5203765e6 
iPhone11,4 7.80 GBiPhone11,2,iPhone11,4,iPhone11,6_17.6_21G79_Restore.ipsw SHA-256 aed862a0a3285f0c97f7de94601a7d25e00c0f46cd87d3b223b6f9c5203765e6 No device matches.
21G79How to install iOS 17.6 RC 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 17.6 RC today?
Not at the moment — Apple has stopped signing 21G79, 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.