OTA Updates (Over-the-Air Updates) have been introduced with iOS 5. The device contacts mesu.apple.com to check for updates. The updates are delivered in plain unencrypted ZIP files.
OTA Update Files
Version
|
Build
|
Prerequisite Build
|
OTA Download URL
|
Type
|
Comments
|
File Size
|
5.0b5
|
9A5288d
|
9A5259f
|
9023d1ebd320d91b35fb3820b3c2ed0ce42c6d03.zip
|
Beta
|
|
193,443,604
|
5.0b5
|
9A5288d
|
9A5259f
|
e32a3ed51a0913d882d7e8a87af0623d8f191e60.zip
|
Carrier
|
|
195,891,742
|
5.0.1b2
|
9A404
|
9A402
|
04d4f2d4537ac918ac3e494788c282bb67001bbb.zip
|
Beta
|
|
39,473,876
|
5.0.1
|
9A405
|
9A334
|
a10da09644bd17d9ad67e88ba5224b719faa7b95.zip
|
Release
|
|
41,066,648
|
5.1b3
|
9B5141a
|
9B5127c
|
0ed3620795c3e7c46f9153d15764669ce5b38d3a.zip
|
Beta
|
|
68,303,999
|
5.1
|
9B176
|
9A334
|
0f536b7c0b32a36f211d5ec9de49b5af5a446637.zip
|
Release
|
|
206,257,384
|
5.1
|
9B176
|
9A405
|
80706706e05b0d953a73e669e63a1296b05855a8.zip
|
Release
|
|
206,135,598
|
5.1.1
|
9B206
|
9A334
|
5a2543f12b0787761001193e16889aab85a02f05.zip
|
Release
|
|
206,350,463
|
5.1.1
|
9B206
|
9A405
|
113bb32f77e8af36b84f76f0e81fd0bde3c77e69.zip
|
Release
|
|
206,148,111
|
5.1.1
|
9B206
|
9B176
|
1ab5e0d1d2da57959c30c85e019366f9542381a6.zip
|
Release
|
|
44,376,057
|
Version
|
Build
|
Prerequisite Build
|
OTA Download URL
|
Type
|
Comments
|
File Size
|
5.0.1b2
|
9A404
|
9A402
|
23289e9f5c752e67cbb650179bc0fdfce9613648.zip
|
Beta
|
|
39,937,791
|
5.0.1
|
9A405
|
9A334
|
f2ae60b598040fb475668fba346720094187909b.zip
|
Release
|
|
41,300,532
|
5.1b3
|
9B5141a
|
9B5127c
|
82f69270db293451d9d3b0e9c374ede1237f7212.zip
|
Beta
|
|
68,141,766
|
5.1
|
9B176
|
9A334
|
92630263465e52fbbdea5faec5977dded28c61ce.zip
|
Release
|
|
208,857,189
|
5.1
|
9B176
|
9A405
|
84dc0afde1f90d09922803c324b932a42f1169a2.zip
|
Release
|
|
208,685,128
|
5.1.1
|
9B206
|
9A334
|
2bd1895065a75534dbffd15b98483418fe8ea94a.zip
|
Release
|
|
208,541,655
|
5.1.1
|
9B206
|
9A405
|
94cbec1127f89844e7dfacb9aac16778b3d86a05.zip
|
Release
|
|
208,411,368
|
5.1.1
|
9B206
|
9B176
|
93580e557a17e501c6db269dadb08782a8e7013d.zip
|
Release
|
|
44,183,250
|
6.0b2
|
10A5338d
|
10A5316k
|
7812717514956fbd68342ae1eae7e316684027e2.zip
|
Beta
|
|
331,386,501
|
6.0b3
|
10A5355d
|
10A5338d
|
e0181308c14382cc4218308fd648fd606b5a7a7b.zip
|
Beta
|
|
296,087,305
|
6.0b4
|
10A5376e
|
10A5355d
|
9bbb8a2caba968404f3c347ab2a99c340434023b.zip
|
Beta
|
|
254,952,853
|
Version
|
Build
|
Prerequisite Build
|
OTA Download URL
|
Type
|
Comments
|
File Size
|
5.0b5
|
9A5288d
|
9A5274d
|
7087529d848729133957d979f54bdebe1c07a7fd.zip
|
Carrier
|
|
148,024,221
|
5.0b5
|
9A5288d
|
9A5274d
|
0ac25e80cac4b6d12cc7cc2c5ba98d7cc3c03fb9.zip
|
Beta
|
|
146,544,905
|
5.0.1b2
|
9A404
|
9A402
|
538ae578b5e1e2f6199d5f0f8a3d9072fd907e4c.zip
|
Beta
|
|
48,066,431
|
5.0.1
|
9A405
|
9A334
|
ed440421275bd52d6748abf3a31837fda03cc086.zip
|
Release
|
|
49,120,994
|
5.1b3
|
9B5141a
|
9B5127c
|
9d7dfc2b71aaf7c0301c9214a676ddca8c6e95c7.zip
|
Beta
|
|
76,341,767
|
5.1
|
9B176
|
9A334
|
d4b50d8b7aef719b3f917b70d5313fa164e4355a.zip
|
Release
|
|
217,074,208
|
5.1
|
9B176
|
9A405
|
1cad4c4be9ebf6c39780a277217bfedac0c09e36.zip
|
Release
|
|
217,039,794
|
5.1.1
|
9B206
|
9A334
|
76c424440b2dab99ce12abb9a1530cbb3054f7d2.zip
|
Release
|
|
216,955,134
|
5.1.1
|
9B206
|
9A405
|
28980da59202504400b9664dbf20f734d9f6524c.zip
|
Release
|
|
216,858,335
|
5.1.1
|
9B206
|
9B176
|
9ce0c0c6052da151c4dc268ccfd9a32094499679.zip
|
Release
|
|
52,443,026
|
6.0b2
|
10A5338d
|
10A5316k
|
7555788ad30e89f15d42aa5289001f4bf21518b4.zip
|
Beta
|
|
339,182,850
|
6.0b3
|
10A5355d
|
10A5338d
|
7d9056d1651cfc86b133953a2319bb4f34f53c80.zip
|
Beta
|
|
304,804,979
|
6.0b4
|
10A5376e
|
10A5355d
|
4a5f811d31f17a1c8c6dda34683e377c59369f7a.zip
|
Beta
|
|
263,012,469
|
Version
|
Build
|
Prerequisite Build
|
OTA Download URL
|
Type
|
Comments
|
File Size
|
5.0b5
|
9A5288d
|
9A5274d
|
444e2f5f79af95b9601b8871b86cbf9793cd7a14.zip
|
Beta
|
|
142,810,356
|
5.0b5
|
9A5288d
|
9A5274d
|
58cfede05a3813ecd8446e293eaef7d0cb5ea2ce.zip
|
Carrier
|
|
144,264,157
|
5.0.1b2
|
9A404
|
9A402
|
f5053274861e6a9144e6540a6ec340aea976ec33.zip
|
Beta
|
|
53,765,294
|
5.0.1
|
9A405
|
9A334
|
7e7666c0e4ab2dcb0977987da8501dc8f3361644.zip
|
Release
|
|
55,647,323
|
5.1b3
|
9B5141a
|
9B5127c
|
6affecb981cd973c5c7b534145de95da9ae8c7e0.zip
|
Beta
|
|
82,449,304
|
5.1
|
9B176
|
9A334
|
7424bbc47718a665b1dd8a00c9e500547b81c64b.zip
|
Release
|
|
222,931,191
|
5.1
|
9B176
|
9A405
|
e056ec60839f70a53293c113583603f62a9422c0.zip
|
Release
|
|
222,925,778
|
5.1.1
|
9B206
|
9A334
|
ec2ec332910238ee19c8101682e1803875c555f8.zip
|
Release
|
|
223,140,790
|
5.1.1
|
9B206
|
9A405
|
4a2d91458ba8a65c14282267a309871edd2f9c37.zip
|
Release
|
|
222,976,349
|
5.1.1
|
9B206
|
9B176
|
4eb439d7e152b8e720d32809bfad598f6d51d932.zip
|
Release
|
|
58,292,288
|
6.0b2
|
10A5338d
|
10A5316k
|
f0fa7f9a9bd9b1001ad7867e3970cadbef93893f.zip
|
Beta
|
|
338,483,972
|
6.0b3
|
10A5355d
|
10A5338d
|
155c2e583b6ec1401b06662ae46a30828724138c.zip
|
Beta
|
|
303,258,782
|
6.0b4
|
10A5355d
|
10A5355d
|
59f1fd9592a542e132a77a6890a2e857f5311fd8.zip
|
Beta
|
|
262,246,622
|
Version
|
Build
|
Prerequisite Build
|
OTA Download URL
|
Type
|
Comments
|
File Size
|
5.0b5
|
9A5288d
|
9A5259f
|
5f3c1bb45bdf4ec0b34be4554516a09a245bfdb4.zip
|
Beta
|
|
179,789,824
|
5.0b5
|
9A5288d
|
9A5259f
|
30a65ecc4bd61b2298c28676d025ae4babad337c.zip
|
Carrier
|
|
182,017,013
|
5.0b5
|
9A5288d
|
9A5274d
|
ff1081181b5647475f62bf5c19c04c0386adb103.zip
|
Beta
|
|
119,114,569
|
5.0.1b2
|
9A404
|
9A402
|
ae57c4dc797aeb0c6f230172c49ad54de9b75aa3.zip
|
Beta
|
|
39,717,063
|
5.0.1
|
9A405
|
9A334
|
19f78b3b21dc48a8a5baea455377c134321b5887.zip
|
Release
|
|
40,811,305
|
5.1b3
|
9B5141a
|
9B5127c
|
ffd65cefb4f892725a2592960f953a31944872e2.zip
|
Beta
|
|
64,373,565
|
5.1
|
9B176
|
9A334
|
e40288e178845de42cf0fa18365bdcb5fc4492e7.zip
|
Release
|
|
111,010,992
|
5.1
|
9B176
|
9A405
|
0e0e6444cae79c3c809107eb61c3ee6c75c10c2f.zip
|
Release
|
|
110,916,945
|
5.1.1
|
9B206
|
9A334
|
330eab34750638ddee858c73dbcf6d4ed40ec441.zip
|
Release
|
|
110,878,798
|
5.1.1
|
9B206
|
9A405
|
6baa3d9b478247fdad494f586637e15c2efe660e.zip
|
Release
|
|
110,799,805
|
5.1.1
|
9B206
|
9B176
|
73f29cee8c60a824c971fa56576a829ca790a8e1.zip
|
Release
|
|
42,582,105
|
6.0b2
|
10A5338d
|
10A5316k
|
ee244e08b44c726fbe0c5b76dfe357967d3b67cb.zip
|
Beta
|
|
282,404,733
|
6.0b3
|
10A5355d
|
10A5338d
|
d889c3ff46e9c3ba525b323ef5967a3e6731582a.zip
|
Beta
|
|
275,792,281
|
6.0b4
|
10A5376e
|
10A5355d
|
bc4aa64ff5b8dd6a7c93a9481a9920a82ef043ea.zip
|
Beta
|
|
264,598,312
|
Version
|
Build
|
Prerequisite Build
|
OTA Download URL
|
Type
|
Comments
|
File Size
|
5.0b5
|
9A5288d
|
9A5259f
|
05e3a3f0fc43c968f93af8464720c50fbd0ad620.zip
|
Carrier
|
|
193,261,005
|
5.0b5
|
9A5288d
|
9A5274d
|
cde871abbf88d40ff2de05b729ae7d77299cb718.zip
|
Beta
|
|
135,075,264
|
5.0b5
|
9A5288d
|
9A5274d
|
af342f8dbdcfb16cecef31b915b172b1b54923ca.zip
|
Carrier
|
|
135,591,402
|
5.0.1b2
|
9A404
|
9A402
|
accafa6d7e44bac2f21f52e579b20ec877d725e2.zip
|
Beta
|
|
45,464,950
|
5.0.1
|
9A405
|
9A334
|
18d1ad5c7de11dced1914b59be08eaa2a3e6503d.zip
|
Release
|
|
46,787,119
|
5.1b3
|
9B5141a
|
9B5127c
|
f7b405cca1af5de58a49c63772e59a8feb17a877.zip
|
Beta
|
|
71,922,963
|
5.1
|
9B176
|
9A334
|
03e5a74f68e6d997820fce4584d4c4b248b7a311.zip
|
Release
|
|
186,113,559
|
5.1
|
9B176
|
9A405
|
4df53ad9e8cbf24a021ea6619654dec4c15fe942.zip
|
Release
|
|
186,154,575
|
5.1.1
|
9B206
|
9A334
|
1450e4166bab3ce0ad46156d34dcd42df34c86e0.zip
|
Release
|
|
186,205,095
|
5.1.1
|
9B206
|
9A405
|
d25fca63ed0a40bfd6256becf09af16c2bef0cbe.zip
|
Release
|
|
186,165,242
|
5.1.1
|
9B206
|
9B176
|
5d24ae0e49872271dc1ac77f9ba13733c648cc66.zip
|
Release
|
|
49,626,152
|
6.0b2
|
10A5338d
|
10A5316k
|
db60ecb97987030c2f3d85485cab348844014dd6.zip
|
Beta
|
|
313,907,902
|
6.0b3
|
10A5355d
|
10A5338d
|
209b5bd6b45d2a1f57511b9a82f4662b48bad2f8.zip
|
Beta
|
|
339,348,125
|
6.0b4
|
10A5376e
|
10A5355d
|
6c4383049d6c7cdbcae6af39acde718f935b57d0.zip
|
Beta
|
|
277,589,026
|
Version
|
Build
|
Prerequisite Build
|
OTA Download URL
|
Type
|
Comments
|
File Size
|
5.0b5
|
9A5288d
|
9A5274d
|
8f6b3c14f3387b6fe0db08b52338a29d845d3197.zip
|
Beta
|
|
144,482,539
|
5.0.1b2
|
9A404
|
9A402
|
252a641e24b440a1e8fcdf5a2da3139b19273c9c.zip
|
Beta
|
|
55,140,468
|
5.0.1
|
9A405
|
9A334
|
f32393169909696c2b3efb2aa9c82b9a7d8ba8b8.zip
|
Release
|
|
56,495,306
|
5.1b3
|
9B5141a
|
9B5127c
|
d504ee2e5a295880ef9ddef8f2e95749463c5c2d.zip
|
Beta
|
|
81,120,562
|
5.1
|
9B176
|
9A334
|
4c34ed79631d24a81dcd56f99a2fe8fe6ba1b506.zip
|
Release
|
|
195,682,427
|
5.1
|
9B176
|
9A405
|
3225fd68ea19c195181ec755e58797f881145454.zip
|
Release
|
|
195,532,946
|
5.1.1
|
9B206
|
9A334
|
7f552e36324158abde98777c86939a9e172f5499.zip
|
Release
|
|
195,741,880
|
5.1.1
|
9B206
|
9A405
|
dab9ae7367f25003bfbebffc3232a87735cd04e6.zip
|
Release
|
|
195,563,994
|
5.1.1
|
9B206
|
9B176
|
04d572b25f9e52ea9b1796247fa4c31136cebb17.zip
|
Release
|
|
59,307,190
|
6.0b2
|
10A5338d
|
10A5316k
|
498355490284325370f4d197423c3d96325459de.zip
|
Beta
|
|
312,987,902
|
6.0b3
|
10A5355d
|
10A5338d
|
113ac8ac46607bd6d72e1d8f57fe852fdaa71818.zip
|
Beta
|
|
337,286,237
|
6.0b4
|
10A5376e
|
10A5355d
|
0a8d899f05230879fcb7489c0c4fcc1d472b2f24.zip
|
Beta
|
|
276,408,151
|
Version
|
Build
|
Prerequisite Build
|
OTA Download URL
|
Type
|
Comments
|
File Size
|
5.0.1b2
|
9A404
|
9A402
|
554f7813ac09d45256faad560b566814c983bd4b.zip
|
Beta
|
|
839,302,389
|
5.0.1
|
9A405
|
9A334
|
323d76efa3e44947838dca305cd104ca740dd30c.zip
|
Release
|
|
58,221,403
|
5.1b3
|
9B5141a
|
9B5127c
|
5e15af51bc7ee8c741d7b25dd1ae7653dcb1efb3.zip
|
Beta
|
|
79,997,780
|
5.1
|
9B179
|
9A405
|
a37da9fd18dd0a40d46192b63ed5069fa4e852c9.zip
|
Release
|
|
198,459,428
|
5.1
|
9B179
|
9A334
|
bdf35bb991b25d0ecc0e2cfb2d59f99d63082c09.zip
|
Release
|
|
198,658,723
|
5.1
|
9B179
|
9A406
|
94fbce740b4e3f59f047ce5369c7afb5f806e249.zip
|
Release
|
|
198,383,965
|
5.1.1
|
9B206
|
9A334
|
bc824c5dfbd22c89a016a8415099ada24537d906.zip
|
Release
|
|
198,371,367
|
5.1.1
|
9B206
|
9A405
|
5ea28dc96b0270017468caf538b9553379f5c8d8.zip
|
Release
|
|
198,713,876
|
5.1.1
|
9B206
|
9A406
|
6924ea4078914518504e96106fabfc19251b7858.zip
|
Release
|
|
198,661,077
|
5.1.1
|
9B206
|
9B179
|
6ded1e9b6e7138cf1fe618775f58ce33cce07f1f.zip
|
Release
|
|
57,176,155
|
6.0b2
|
10A5338d
|
10A5316k
|
1155ebb1d20640a1be189d2f64666149d5e66123.zip
|
Beta
|
|
338,270,933
|
6.0b3
|
10A5355d
|
10A5338d
|
6cd5fdab6a11686caf2d4c4ad9beb8a0c92a4be7.zip
|
Beta
|
|
364,282,095
|
6.0b4
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10A5376e
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Comments
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9A5288d
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5.0.1b2
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9A404
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9A402
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39,019,275
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5.0.1
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9A405
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9A334
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5.1b3
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9B5141a
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9B5127c
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5.1
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9B176
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9A334
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5.1
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9B176
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9A405
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5.1.1
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9B206
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9A334
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5.1.1
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9B206
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110,722,183
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5.1.1
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9B206
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9B176
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42,005,610
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Prerequisite Build
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OTA Download URL
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5.0b5
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9A5288d
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185,480,615
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5.0b5
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9A5288d
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9A5274d
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5.0.1b2
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9A404
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9A402
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5.0.1
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9A405
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5.1b3
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9B5141a
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5.1
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9B176
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5.1
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9B176
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5.1.1
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5.1.1
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9B206
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5.1.1
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9B206
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6.0b2
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10A5338d
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10A5316k
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|
Beta
|
|
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6.0b3
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10A5355d
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10A5338d
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6.0b4
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10A5376e
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10A5355d
|
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|
Beta
|
|
266,224,651
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