Beta OTA Updates/iPhone/5.1

From The Apple Wiki

iPhone 3GS

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
5.1 beta 3 9B5141a 5.0.1 9A405 9 January 2012 6741d7662fe6146bcdbec441762470b08ed0c8b1.zip 110,456,279
5.1 beta 2 9B5127c ffd65cefb4f892725a2592960f953a31944872e2.zip 64,373,565
5.1 beta 4 9B155[1] 5.0.1 9A405 23 January 2012 14d2d3b74ffc2c926e24131c6f16ec545ee37792.zip 110,756,001
5.1 beta 3 9B5141a 1730afb4780176c39c84c9aa0a115f417008403a.zip 46,407,494

iPhone 4

iPhone3,1

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
5.1 beta 3 9B5141a 5.0.1 9A405 9 January 2012 14f8af06cff79045e3682287c8f51d99ac9eb4fd.zip 185,432,127
5.1 beta 2 9B5127c f7b405cca1af5de58a49c63772e59a8feb17a877.zip 71,922,963
5.1 beta 4 9B155[1] 5.0.1 9A405 23 January 2012 db85e197c6336866a2b22b07bb13716606060bb8.zip 185,832,575
5.1 beta 3 9B5141a 6ca371c561317106a2e88ff31e796bc725f156ea.zip 52,820,262

iPhone3,3

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
5.1 beta 3 9B5141a 5.0.1 9A405 9 January 2012 962bb18b9ceb4f651fd1fd63b1dcd4fbb5171fd0.zip 195,143,783
5.1 beta 2 9B5127c d504ee2e5a295880ef9ddef8f2e95749463c5c2d.zip 81,120,562
5.1 beta 4 9B155[1] 5.0.1 9A405 23 January 2012 76408733a9812ff779e8a5db854a7ea2385101f2.zip 195,396,452
5.1 beta 3 9B5141a b5f9ecc79d22e6af519ed00506bffc04966daee5.zip 62,351,550

iPhone 4S

Version Build Prerequisite Version Prerequisite Build Release Date OTA Download URL File Size
5.1 beta 3 9B5141a 5.0.1 9A405 10 January 2012 21b1b074d027e09b80905144afc9e0ab7cb15636.zip 197,887,316
5.1 beta 2 9B5127c 5e15af51bc7ee8c741d7b25dd1ae7653dcb1efb3.zip 79,997,780
5.1 beta 4 9B155[1] 5.0.1 9A405 23 January 2012 dd4830bae0b342df01962d4dca1889b90854f82b.zip 198,204,236
5.1 beta 3 9B5141a 44a83b77f8dec754a4e722a1fab97ced1288f7b6.zip 60,775,251

Notes

  1. ^ a b c d Apple inflated the build number in its mesu.apple.com listing, presumably to make the device recognize the update. (e.g. 12F61 was listed as 12F5061.) The listings on this page use the build number displayed on the device.