OTA Updates/iPhone/12.3.1

From The Apple Wiki

iPhone 5s

iPhone6,1

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 ba664138fe65d2961d03b1d95f04274a7886f121.zip 2,313,408,570
16F203

iPhone6,2

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 7be3b7b17d35601896133bcf863e145514ae25c9.zip 2,313,408,560
16F203

iPhone 6

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 8f8c1b69c9ca6de365a547de871255a719fc5905.zip 2,352,388,224
16F203

iPhone 6 Plus

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 3dc467cdb26475c275cf2d73f0e3eeffd1c58094.zip 2,504,451,539
16F203

iPhone 6s

N71AP

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 381bce0e766652d5269fc2f8ab9e1d8ed1a993bf.zip 2,357,749,224
16F203

N71mAP

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 222ba45dc3d2e8fc1175cb0804ba4a65e68e1726.zip 2,357,679,104
16F203

iPhone 6s Plus

N66AP

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 ee29f762e3d464ad32f5b8b2bf382cbe552cb06b.zip 2,510,227,584
16F203

N66mAP

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 c1a6ab6e9db954710d3208daf600ac94cf29a73d.zip 2,510,157,498
16F203

iPhone SE (1st generation)

N69AP

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 10500993908c565073f137f559f0529eb4ac02f5.zip 2,318,896,234
16F203

N69uAP

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 946d3c906e43c3d62d282a2640fa388fff2226f3.zip 2,318,966,295
16F203

iPhone 7

iPhone9,1

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 1264fc041bb83d9e190a2f6549a926cb9ff81e7d.zip 2,503,255,609
16F203

iPhone9,3

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 f334360a65c8566d0b5f3812666733412dede0c4.zip 2,489,730,521
16F203

iPhone 7 Plus

iPhone9,2

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 99b8130a998a174759fc22bba31d3a62c973d795.zip 2,660,917,837
16F203

iPhone9,4

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 bdf860f71674a8308c9afa6d9f9f1a412662a58a.zip 2,643,496,101
16F203

iPhone 8

iPhone10,1

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 6763825aeb005af9dba468c0a427584881eb197b.zip 2,526,779,593
16F203

iPhone10,4

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 357cd9774068955c5d738aba58366f29ab6a68ef.zip 2,514,575,736
16F203

iPhone 8 Plus

iPhone10,2

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 f86eceb3c38618f61c382aa447b12821bb4c03fd.zip 2,681,967,158
16F203

iPhone10,5

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 6d993e621f826dcf9dacfb063d5940b73cc3630c.zip 2,668,341,255
16F203

iPhone X

iPhone10,3

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 f3558e6455ebd6ea3fdc44bb2b67c8327eda713c.zip 2,815,333,815
16F203

iPhone10,6

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 dd49ef7bbd752f061740ebc4a6b99b4281e672eb.zip 2,797,347,802
16F203

iPhone XR

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 1a8ce0599c1ff5b3613e6ea88ee1df9f4688ea48.zip 2,673,419,508
16F203

iPhone XS

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 748baf5f57041f59bd8ff2e693f76fe06575d163.zip 2,904,264,452
16F203

iPhone XS Max

iPhone11,4

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 c37cdd0c34c5dacd97289d26de79d8e8c08586b5.zip 2,842,877,298
16F203

iPhone11,6

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
12.3.1 16F203[1] 24 May 2019 6abf0799e52a48901f2057b2fe821def95bebc20.zip 2,842,876,049
16F203

Notes

  1. ^ a b c d e f g h i j k l m n o p q r s t u v w x Apple inflated the build number in its mesu.apple.com listing, presumably to make the device recognize the update. (e.g. 16F203 was listed as 16F6203.) The listings on this page use the build number displayed on the device.