IPSW · iOS
iOS 26.3.1 IPSW Download (23D8133)
Build 23D8133, released March 4, 2026 — restore images for 31 iPhones, straight from Apple's servers.
Choose your iPhone
31 devices. Each row is one file on Apple's CDN.
iPhone18,5 10.73 GBiPhone18,5_26.3.1_23D8133_Restore.ipsw SHA-256 b972cec1659882aff1b939cf5d911cf8cbe8f0de1aa1590985b7abb8929c80bc 
iPhone18,3 11.04 GBiPhone18,3_26.3.1_23D8133_Restore.ipsw SHA-256 e395f64fa5f6f443097944a4905546c2c8610dae570ce04c707bc26c5efdfdb9 
iPhone18,1 11.01 GBiPhone18,1_26.3.1_23D8133_Restore.ipsw SHA-256 a3d38406af21b2212304d235744d56666a9c054149792d9837d1795890d0f832 
iPhone18,2 11.00 GBiPhone18,2_26.3.1_23D8133_Restore.ipsw SHA-256 b76c889d9aada7859a181848fbc04fc9a35f1f946b82e9ea7f081a034bcaa741 
iPhone18,4 10.74 GBiPhone18,4_26.3.1_23D8133_Restore.ipsw SHA-256 0f06f20855a0d2452b5ecb1e0186ad539100b3906827cd2888aaa60942e873a3 
iPhone17,5 10.43 GBiPhone17,5_26.3.1_23D8133_Restore.ipsw SHA-256 16a80d749c08917d553fb035037bba7b9ca2cde0d7b36f6e8cfa3efa9b951587 
iPhone17,3 10.83 GBiPhone17,3_26.3.1_23D8133_Restore.ipsw SHA-256 d2c68e0f27aae8db2e05353037e73966d2e815c3e3b74bed7152dfe3bbf5e154 
iPhone17,4 10.80 GBiPhone17,4_26.3.1_23D8133_Restore.ipsw SHA-256 537210781068cb9386eb7925f675cec7dacc2857963a7b3117d832e678cadc48 
iPhone17,1 10.94 GBiPhone17,1_26.3.1_23D8133_Restore.ipsw SHA-256 f8ca32c07da2e140b8c3bfa8d6c3ca4cd718299d7a5d93e81966e05d3da8ed59 
iPhone17,2 10.94 GBiPhone17,2_26.3.1_23D8133_Restore.ipsw SHA-256 4169f2fd2b86139d7f3a7ce415ad7d85ae57803f0b7de3d3403cb90a1a516797 
iPhone15,4 10.14 GBiPhone15,4_26.3.1_23D8133_Restore.ipsw SHA-256 864eab98814d3031fd7261383c2c6711b558a168984d26b370e1071cad163f1d 
iPhone15,5 10.14 GBiPhone15,5_26.3.1_23D8133_Restore.ipsw SHA-256 6c3fda7ea42ed45313ff8b4a8f8587953d709cad0bb043859c6ff0effa648dd2 
iPhone16,1 10.84 GBiPhone16,1_26.3.1_23D8133_Restore.ipsw SHA-256 f381332b62a5a48cce8971a423cb16f6b8a34dd0c96a344c29c89538fdfcdf97 
iPhone16,2 10.84 GBiPhone16,2_26.3.1_23D8133_Restore.ipsw SHA-256 f966145fc190a6d7361a45300470728e8d0e67d13437d96ced8773126477ec27 
iPhone14,8 10.06 GBiPhone14,8_26.3.1_23D8133_Restore.ipsw SHA-256 f6405f83fc95a9da9ceb3fd5814e415d3dc59ca793698788040116376b1042fb 
iPhone14,7 10.06 GBiPhone14,7_26.3.1_23D8133_Restore.ipsw SHA-256 50ef2fc604388d0af7c34fff220dfda93f57a329ff99daf32e9655c597c019cf 
iPhone15,2 10.22 GBiPhone15,2_26.3.1_23D8133_Restore.ipsw SHA-256 3af6d4768f712341d87d8f000a05ba168a9788ead6e64a7b580837f78cc6c880 
iPhone15,3 10.20 GBiPhone15,3_26.3.1_23D8133_Restore.ipsw SHA-256 36e41e9eeb21796d821160b73e138b221d8ff0462d07438122950ff63418710c 
iPhone14,6 9.73 GBiPhone14,6_26.3.1_23D8133_Restore.ipsw SHA-256 a978b3971fc59bc77e0c9ef39d575cce3022ccf6e1853dcc9a2b138e5c6394d4 
iPhone14,5 9.98 GBiPhone14,5_26.3.1_23D8133_Restore.ipsw SHA-256 230ee03c468c5f380a9beb53aaf99cda21f7a1bac3921dadd4ba0d2d8cc0f617 
iPhone14,4 10.00 GBiPhone14,4_26.3.1_23D8133_Restore.ipsw SHA-256 37986decf67416633cf85a1eaa790310f2600e310a2c81a77828da98590853d7 
iPhone14,2 10.11 GBiPhone14,2_26.3.1_23D8133_Restore.ipsw SHA-256 fd806d380e9664bd1de4a048594ef6df197c6918545449a7c64532fceb48d4b4 
iPhone14,3 10.11 GBiPhone14,3_26.3.1_23D8133_Restore.ipsw SHA-256 4b2bddae14bb7a5588e7d9b124bf3ed95b8e25ffd3b6084900925288e840d151 
iPhone13,1 9.93 GBiPhone13,1_26.3.1_23D8133_Restore.ipsw SHA-256 4124f41e0ed0832091ae4ead7c3a7761245e43876f02cdcce4f530355391f5e0 
iPhone13,4 10.09 GBiPhone13,4_26.3.1_23D8133_Restore.ipsw SHA-256 9ef98520b9870c4101eb74eaf6d75072e3bf001b313f931b2d42d79a65b6499b 
iPhone13,2 10.13 GBiPhone13,2,iPhone13,3_26.3.1_23D8133_Restore.ipsw SHA-256 62b903c0ed5a1a8ada365702b4dc45dfad07c3761c534cc331945a549074a925 
iPhone13,3 10.13 GBiPhone13,2,iPhone13,3_26.3.1_23D8133_Restore.ipsw SHA-256 62b903c0ed5a1a8ada365702b4dc45dfad07c3761c534cc331945a549074a925 
iPhone12,8 9.51 GBiPhone12,8_26.3.1_23D8133_Restore.ipsw SHA-256 771f3f41a1874376dcb47374c18d4e5c57d68cfff0f0bc8c5709e1e262f98957 
iPhone12,1 9.54 GBiPhone12,1_26.3.1_23D8133_Restore.ipsw SHA-256 57905a2176dcccde68f44993cc0132924b7982419824ca788967fa6238587bd9 
iPhone12,3 9.73 GBiPhone12,3,iPhone12,5_26.3.1_23D8133_Restore.ipsw SHA-256 bf2f71dec2a898922bf2938de572f89499e22d88a91f43c27ecf039a7f43dd6b 
iPhone12,5 9.73 GBiPhone12,3,iPhone12,5_26.3.1_23D8133_Restore.ipsw SHA-256 bf2f71dec2a898922bf2938de572f89499e22d88a91f43c27ecf039a7f43dd6b No device matches.
23D8133How to install iOS 26.3.1 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 26.3.1 today?
Not at the moment — Apple has stopped signing 23D8133, 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.