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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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 (2019-05-24) 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.
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