IPSW · iOS
iOS 17.3 IPSW Download (21D50)
Build 21D50, released January 22, 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 7.95 GBiPhone15,4_17.3_21D50_Restore.ipsw SHA-256 af2ba8874f2dc89bf16ffad994367774bbb18c1820be8c5b4919b825a86f9772 
iPhone15,5 7.95 GBiPhone15,5_17.3_21D50_Restore.ipsw SHA-256 69ef153c6ab20b5b6e7ae009a40413c896b06b4a5645c82e8616ff98951fb7e6 
iPhone16,1 8.13 GBiPhone16,1_17.3_21D50_Restore.ipsw SHA-256 166efc79f99eae976ebd739a9e8e92410e28d45529558dd3c9d8d65d3bb8a58a 
iPhone16,2 8.13 GBiPhone16,2_17.3_21D50_Restore.ipsw SHA-256 41956e06dc75ad2faac45952e2cd63f5181d9525d417b4bb8c1742130c88375e 
iPhone14,8 7.76 GBiPhone14,8_17.3_21D50_Restore.ipsw SHA-256 da7b6897ba31d8c84aea2f3d28168c05a55e457a4c7c3e91611ca4aad6321525 
iPhone14,7 7.76 GBiPhone14,7_17.3_21D50_Restore.ipsw SHA-256 ecf754a6dce0ec44088f20672cf6d4ef4ea4ecbab5286e0c04ab9a07148b80c1 
iPhone15,2 7.92 GBiPhone15,2_17.3_21D50_Restore.ipsw SHA-256 35a2229560dc92a94bac9eedd60cd315cf942f71dcb5a050f1738f50efebad64 
iPhone15,3 7.90 GBiPhone15,3_17.3_21D50_Restore.ipsw SHA-256 d23d93e15bfb0637e34d4c4d84f735778e8529725c0bae18248acff68ecd147b 
iPhone14,6 7.50 GBiPhone14,6_17.3_21D50_Restore.ipsw SHA-256 0277465f2712707a6c896d216993c5b3f87bf4d52cc7d3482c4364c8fe5f2aba 
iPhone14,5 7.72 GBiPhone14,5_17.3_21D50_Restore.ipsw SHA-256 f4d14ce9e6b19e7ea86d367b7eaff748ae1ad8050c83599c6f78db0f6e558c0c 
iPhone14,4 7.74 GBiPhone14,4_17.3_21D50_Restore.ipsw SHA-256 f5ac3a274906263a534554084eac8ece6b7713cd2818114ba193d638815ced36 
iPhone14,2 7.84 GBiPhone14,2_17.3_21D50_Restore.ipsw SHA-256 13e7442a347004711c69569b5b4891543be67bd485a4b57c155c80e22e41e93e 
iPhone14,3 7.84 GBiPhone14,3_17.3_21D50_Restore.ipsw SHA-256 8a7135d005ab6cb781e34a7c93763a240fa56d3f67edbb2b00bf1307e5ae682d 
iPhone13,1 7.65 GBiPhone13,1_17.3_21D50_Restore.ipsw SHA-256 3974f377e54e8bd52327eb3bea0aa8c6f6834a7d8255d59b65439c414c64f3df 
iPhone13,4 7.78 GBiPhone13,4_17.3_21D50_Restore.ipsw SHA-256 cb7b52be518fd8a83a75f6ce19bf3ed0df1e57089ee72ba9093b12b793ac89a4 
iPhone13,2 7.83 GBiPhone13,2,iPhone13,3_17.3_21D50_Restore.ipsw SHA-256 dbc8f51a32a45f9c8872899084ceb197827969307b6c62309657a20347c44359 
iPhone13,3 7.83 GBiPhone13,2,iPhone13,3_17.3_21D50_Restore.ipsw SHA-256 dbc8f51a32a45f9c8872899084ceb197827969307b6c62309657a20347c44359 
iPhone12,8 7.29 GBiPhone12,8_17.3_21D50_Restore.ipsw SHA-256 dec7acd511d16cb1bfc262e2e9d595bbca6b4f60ca40643f6ce9e4363b1b79f5 
iPhone12,1 7.32 GBiPhone12,1_17.3_21D50_Restore.ipsw SHA-256 f0c1691d46f7bb15cdbf6f2af9cb788881075381f67c9fa6fd9916c3c1004b3d 
iPhone12,3 7.46 GBiPhone12,3,iPhone12,5_17.3_21D50_Restore.ipsw SHA-256 bbf25ffa7cc68ca252ab60e7eafc5f3d4bee936e33184689097602a5a65bb203 
iPhone12,5 7.46 GBiPhone12,3,iPhone12,5_17.3_21D50_Restore.ipsw SHA-256 bbf25ffa7cc68ca252ab60e7eafc5f3d4bee936e33184689097602a5a65bb203 
iPhone11,8 7.44 GBiPhone11,8_17.3_21D50_Restore.ipsw SHA-256 d494a14d023cb18958dce7a65ed60419b7c2ed2a6fe6c95498a3baf755ffa1d8 
iPhone11,2 7.62 GBiPhone11,2,iPhone11,4,iPhone11,6_17.3_21D50_Restore.ipsw SHA-256 8e6f97db6badae6e3043cf104b3decc9cc3682cdb15097bb1bd13a4dfea6821d 
iPhone11,6 7.62 GBiPhone11,2,iPhone11,4,iPhone11,6_17.3_21D50_Restore.ipsw SHA-256 8e6f97db6badae6e3043cf104b3decc9cc3682cdb15097bb1bd13a4dfea6821d 
iPhone11,4 7.62 GBiPhone11,2,iPhone11,4,iPhone11,6_17.3_21D50_Restore.ipsw SHA-256 8e6f97db6badae6e3043cf104b3decc9cc3682cdb15097bb1bd13a4dfea6821d No device matches.
21D50How to install iOS 17.3 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 today?
Not at the moment — Apple has stopped signing 21D50, 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.