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.
Unsigned
iPhone15,4 7.95 GB
FilenameiPhone15,4_17.3_21D50_Restore.ipsw
SHA-256af2ba8874f2dc89bf16ffad994367774bbb18c1820be8c5b4919b825a86f9772
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81307/7362516A-77F8-4F0A-BA70-83F2AE6325BC/iPhone15,4_17.3_21D50_Restore.ipsw
Size7,946,353,531 bytes (7.95 GB)
Unsigned
iPhone15,5 7.95 GB
FilenameiPhone15,5_17.3_21D50_Restore.ipsw
SHA-25669ef153c6ab20b5b6e7ae009a40413c896b06b4a5645c82e8616ff98951fb7e6
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81397/9127D53F-335D-4B7F-A52E-B04398C856F7/iPhone15,5_17.3_21D50_Restore.ipsw
Size7,947,059,927 bytes (7.95 GB)
Unsigned
iPhone16,1 8.13 GB
FilenameiPhone16,1_17.3_21D50_Restore.ipsw
SHA-256166efc79f99eae976ebd739a9e8e92410e28d45529558dd3c9d8d65d3bb8a58a
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81176/3A594851-FB4A-4C4F-A6BC-B1D8B3E2F548/iPhone16,1_17.3_21D50_Restore.ipsw
Size8,132,155,868 bytes (8.13 GB)
Unsigned
iPhone16,2 8.13 GB
FilenameiPhone16,2_17.3_21D50_Restore.ipsw
SHA-25641956e06dc75ad2faac45952e2cd63f5181d9525d417b4bb8c1742130c88375e
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81387/A0D0AF94-9A42-44CB-878C-25EF37C247C2/iPhone16,2_17.3_21D50_Restore.ipsw
Size8,133,706,388 bytes (8.13 GB)
Unsigned
iPhone14,8 7.76 GB
FilenameiPhone14,8_17.3_21D50_Restore.ipsw
SHA-256da7b6897ba31d8c84aea2f3d28168c05a55e457a4c7c3e91611ca4aad6321525
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81214/B5A0FC48-AF32-4F70-8744-126FEB41F77C/iPhone14,8_17.3_21D50_Restore.ipsw
Size7,763,121,740 bytes (7.76 GB)
Unsigned
iPhone14,7 7.76 GB
FilenameiPhone14,7_17.3_21D50_Restore.ipsw
SHA-256ecf754a6dce0ec44088f20672cf6d4ef4ea4ecbab5286e0c04ab9a07148b80c1
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81146/0452CBCA-36F4-4BA8-B68A-A77B344FE173/iPhone14,7_17.3_21D50_Restore.ipsw
Size7,763,236,319 bytes (7.76 GB)
Unsigned
iPhone15,2 7.92 GB
FilenameiPhone15,2_17.3_21D50_Restore.ipsw
SHA-25635a2229560dc92a94bac9eedd60cd315cf942f71dcb5a050f1738f50efebad64
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81174/16619A78-E8C1-453B-A996-6826E5A4FCB8/iPhone15,2_17.3_21D50_Restore.ipsw
Size7,924,600,532 bytes (7.92 GB)
Unsigned
iPhone15,3 7.90 GB
FilenameiPhone15,3_17.3_21D50_Restore.ipsw
SHA-256d23d93e15bfb0637e34d4c4d84f735778e8529725c0bae18248acff68ecd147b
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81392/35C6D585-1851-4870-ACE8-7D4CF88B6EFD/iPhone15,3_17.3_21D50_Restore.ipsw
Size7,903,087,953 bytes (7.90 GB)
Unsigned
iPhone14,6 7.50 GB
FilenameiPhone14,6_17.3_21D50_Restore.ipsw
SHA-2560277465f2712707a6c896d216993c5b3f87bf4d52cc7d3482c4364c8fe5f2aba
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81171/B91A3CF5-F565-48F3-9605-7E6F372A668D/iPhone14,6_17.3_21D50_Restore.ipsw
Size7,499,886,436 bytes (7.50 GB)
Unsigned
iPhone14,5 7.72 GB
FilenameiPhone14,5_17.3_21D50_Restore.ipsw
SHA-256f4d14ce9e6b19e7ea86d367b7eaff748ae1ad8050c83599c6f78db0f6e558c0c
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81287/E934DF0D-5E85-4A4E-B29B-2E7431948A4F/iPhone14,5_17.3_21D50_Restore.ipsw
Size7,715,195,634 bytes (7.72 GB)
Unsigned
iPhone14,4 7.74 GB
FilenameiPhone14,4_17.3_21D50_Restore.ipsw
SHA-256f5ac3a274906263a534554084eac8ece6b7713cd2818114ba193d638815ced36
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81094/C8A89460-67A8-45E9-96D6-4B08B21C976B/iPhone14,4_17.3_21D50_Restore.ipsw
Size7,738,822,966 bytes (7.74 GB)
Unsigned
iPhone14,2 7.84 GB
FilenameiPhone14,2_17.3_21D50_Restore.ipsw
SHA-25613e7442a347004711c69569b5b4891543be67bd485a4b57c155c80e22e41e93e
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81272/238534CA-4934-4B75-A85D-2E90CEB88F83/iPhone14,2_17.3_21D50_Restore.ipsw
Size7,837,229,265 bytes (7.84 GB)
Unsigned
iPhone14,3 7.84 GB
FilenameiPhone14,3_17.3_21D50_Restore.ipsw
SHA-2568a7135d005ab6cb781e34a7c93763a240fa56d3f67edbb2b00bf1307e5ae682d
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81150/9314D33A-DA77-4321-AEE3-57762604E827/iPhone14,3_17.3_21D50_Restore.ipsw
Size7,837,200,159 bytes (7.84 GB)
Unsigned
iPhone13,1 7.65 GB
FilenameiPhone13,1_17.3_21D50_Restore.ipsw
SHA-2563974f377e54e8bd52327eb3bea0aa8c6f6834a7d8255d59b65439c414c64f3df
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81118/AE7D3119-6C53-415B-BEEF-3C13A4417299/iPhone13,1_17.3_21D50_Restore.ipsw
Size7,651,459,567 bytes (7.65 GB)
Unsigned
iPhone13,4 7.78 GB
FilenameiPhone13,4_17.3_21D50_Restore.ipsw
SHA-256cb7b52be518fd8a83a75f6ce19bf3ed0df1e57089ee72ba9093b12b793ac89a4
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81255/D60EB387-35CB-4100-A11D-ECC9975DC5FF/iPhone13,4_17.3_21D50_Restore.ipsw
Size7,784,283,469 bytes (7.78 GB)
Unsigned
iPhone13,2 7.83 GB
FilenameiPhone13,2,iPhone13,3_17.3_21D50_Restore.ipsw
SHA-256dbc8f51a32a45f9c8872899084ceb197827969307b6c62309657a20347c44359
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81378/7A24A10F-F8D7-4638-AF9F-6C8D074993E9/iPhone13,2,iPhone13,3_17.3_21D50_Restore.ipsw
Size7,827,753,767 bytes (7.83 GB)
Unsigned
iPhone13,3 7.83 GB
FilenameiPhone13,2,iPhone13,3_17.3_21D50_Restore.ipsw
SHA-256dbc8f51a32a45f9c8872899084ceb197827969307b6c62309657a20347c44359
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81378/7A24A10F-F8D7-4638-AF9F-6C8D074993E9/iPhone13,2,iPhone13,3_17.3_21D50_Restore.ipsw
Size7,827,753,767 bytes (7.83 GB)
Unsigned
iPhone12,8 7.29 GB
FilenameiPhone12,8_17.3_21D50_Restore.ipsw
SHA-256dec7acd511d16cb1bfc262e2e9d595bbca6b4f60ca40643f6ce9e4363b1b79f5
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81148/6C978C22-9087-40DC-A9EE-F8BFDD45F3C8/iPhone12,8_17.3_21D50_Restore.ipsw
Size7,290,074,137 bytes (7.29 GB)
Unsigned
iPhone12,1 7.32 GB
FilenameiPhone12,1_17.3_21D50_Restore.ipsw
SHA-256f0c1691d46f7bb15cdbf6f2af9cb788881075381f67c9fa6fd9916c3c1004b3d
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81339/A4A55FD6-0A5D-4FF9-B000-7F38C14F7CD9/iPhone12,1_17.3_21D50_Restore.ipsw
Size7,316,347,989 bytes (7.32 GB)
Unsigned
iPhone12,3 7.46 GB
FilenameiPhone12,3,iPhone12,5_17.3_21D50_Restore.ipsw
SHA-256bbf25ffa7cc68ca252ab60e7eafc5f3d4bee936e33184689097602a5a65bb203
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81356/8F73EF7E-FDAB-4AB4-A64F-8D012CA6852C/iPhone12,3,iPhone12,5_17.3_21D50_Restore.ipsw
Size7,462,950,295 bytes (7.46 GB)
Unsigned
iPhone12,5 7.46 GB
FilenameiPhone12,3,iPhone12,5_17.3_21D50_Restore.ipsw
SHA-256bbf25ffa7cc68ca252ab60e7eafc5f3d4bee936e33184689097602a5a65bb203
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81356/8F73EF7E-FDAB-4AB4-A64F-8D012CA6852C/iPhone12,3,iPhone12,5_17.3_21D50_Restore.ipsw
Size7,462,950,295 bytes (7.46 GB)
Unsigned
iPhone11,8 7.44 GB
FilenameiPhone11,8_17.3_21D50_Restore.ipsw
SHA-256d494a14d023cb18958dce7a65ed60419b7c2ed2a6fe6c95498a3baf755ffa1d8
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81183/963EDCC7-9FFB-40CF-90CE-E0FC46EFA25D/iPhone11,8_17.3_21D50_Restore.ipsw
Size7,437,687,381 bytes (7.44 GB)
Unsigned
iPhone11,2 7.62 GB
FilenameiPhone11,2,iPhone11,4,iPhone11,6_17.3_21D50_Restore.ipsw
SHA-2568e6f97db6badae6e3043cf104b3decc9cc3682cdb15097bb1bd13a4dfea6821d
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81289/EC31DD7A-204D-4330-82EE-659B8C92E4BF/iPhone11,2,iPhone11,4,iPhone11,6_17.3_21D50_Restore.ipsw
Size7,619,202,049 bytes (7.62 GB)
Unsigned
iPhone11,6 7.62 GB
FilenameiPhone11,2,iPhone11,4,iPhone11,6_17.3_21D50_Restore.ipsw
SHA-2568e6f97db6badae6e3043cf104b3decc9cc3682cdb15097bb1bd13a4dfea6821d
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81289/EC31DD7A-204D-4330-82EE-659B8C92E4BF/iPhone11,2,iPhone11,4,iPhone11,6_17.3_21D50_Restore.ipsw
Size7,619,202,049 bytes (7.62 GB)
Unsigned
iPhone11,4 7.62 GB
FilenameiPhone11,2,iPhone11,4,iPhone11,6_17.3_21D50_Restore.ipsw
SHA-2568e6f97db6badae6e3043cf104b3decc9cc3682cdb15097bb1bd13a4dfea6821d
Direct URLhttps://updates.cdn-apple.com/2024WinterFCS/fullrestores/042-81289/EC31DD7A-204D-4330-82EE-659B8C92E4BF/iPhone11,2,iPhone11,4,iPhone11,6_17.3_21D50_Restore.ipsw
Size7,619,202,049 bytes (7.62 GB)
No device matches.
Version
iOS 17.3
Build
21D50Released
January 22, 2024
Channel
Public release
Previous
iOS 16.7.5
Next
iOS 17.4 beta
How 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.