OTA Updates/iPad Air/12.5.1

iPad Air

iPad4,1

Users still running older versions of iOS (up to 9.3.5) are now presented with a dummy update file, and are instructed to use iTunes to install software updates.

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
12.5.1	16H22	—		11 January 2021	cd642d13705f24d334a22ce8e834342357a67cf7.zip	2,188,981,607
		11.3	15E216		95af83f9bf3bae0f350d5d0909c8c57f77d0a44d.zip	1,323,648,995
		12.0	16A366		b7be5388964a0659c6c1ec8720e51edbeeab0a76.zip	759,386,192
		12.0.1	16A404		4c95d16fb7b00c0ce69e1b30bb66622e21942644.zip	759,374,299
		12.1	16B92		b52c7c9ad77a642c820a92604f0ec4d7136a1e57.zip	730,415,594
		12.1.1	16C50		82d0073b8deaec6c800a231142a6291625c7a698.zip	720,469,428
		12.1.3	16D39		65804d0eb7b976d3778f42f8f8db42b3e7b26408.zip	719,234,914
		12.1.4	16D57		5c3b307a92943518c2f83bd3abf7e87858ccaf4d.zip	719,196,349
		12.2	16E227		218b2df1023d2e267b05469e3fff51ce39314fa8.zip	384,379,847
		12.3	16F156		b63e0b2e02238a3345cdf4f1841b5e15bb0d527a.zip	280,505,841
		12.3.1	16F203		9f54fac772f709629bb6e57c48ea1607896dbede.zip	280,519,350
		12.4	16G77		e8be5f8c7292e9f70c1af3c8206a97d825ed3864.zip	203,973,317
		12.4.1	16G102		e6501c0de99a6b970db20e42d8a93bfb54eae871.zip	203,174,272
		12.4.2	16G114		94086163bd1b667aa4fc3aabb63228de0dedc1d9.zip	201,290,496
		12.4.3	16G130		2c8406e383f6f4b1e2699e75216a9f2530b7ffb7.zip	196,329,760
		12.4.4	16G140		472ac0e1d54286b186614ef3f5a7ccc5423dc04d.zip	196,498,286
		12.4.5	16G161		4398708e89331413f2cb30d25a44eae45ac4b676.zip	196,041,857
		12.4.6	16G183		843bdfee342058cfd0990da7c82936deccbf3949.zip	196,380,859
		12.4.7	16G192		ee9819a815225a2c3cad51185ef941a912b0fed7.zip	195,695,511
		12.4.8	16G201		93187e695849bd47ac6bfe96af636443eccee9d4.zip	195,754,819
		12.4.9	16H5		4136903355e598743859f7f506e10eb60b638a37.zip	195,748,773
		12.5	16H20		c604760e71f763c9a22d145ca17875d0bb22ad04.zip	32,485,911

iPad4,2

Users still running older versions of iOS (up to 9.3.5) are now presented with a dummy update file, and are instructed to use iTunes to install software updates.

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
12.5.1	16H22	—		11 January 2021	f0cf9a50d7ca772259cc8d199d97dab0c325d0b3.zip	2,210,206,612
		11.3	15E216		5db96b95a048ce09da8d0ee22190531fed9bd707.zip	1,323,603,583
		12.0	16A366		7fa8bbe48939665f2941bf6c08bd88bb74e0793c.zip	759,341,126
		12.0.1	16A404		84833903a8c36c0a091e48db933ef44ebbdf550e.zip	759,328,626
		12.1	16B92		7d3a94f6c809042a6d8ac18b675652b789216d1d.zip	730,369,096
		12.1.1	16C50		4ac6ef5792998c6a6f8a70fa6afebf76bf8cd5d2.zip	720,422,632
		12.1.3	16D39		ad96a562a8ca16d5980f1113d083d4d37df91742.zip	719,189,764
		12.1.4	16D57		942dd8168de7551e2d78683883af7e18c287dc07.zip	719,151,844
		12.2	16E227		e99dc59d1d4e4e209485157517a7c7aea37a3ce2.zip	384,333,758
		12.3	16F156		662ce54d534d6e553ac28680598f946e11563f3d.zip	280,460,476
		12.3.1	16F203		4f4614a42399ed04e4b9970d957edc7c2336d399.zip	280,473,377
		12.4	16G77		52d24778c1a2ff89c0fd3d57966f2a864b7ef5b0.zip	203,974,493
		12.4.1	16G102		b87db6adcb5ca7614e17d0b4bcbace2ae8c0e151.zip	203,175,793
		12.4.2	16G114		bbc1689ae16fb875e272ca1ae3c26eafe484e714.zip	201,292,226
		12.4.3	16G130		f5c2b66cac084c7012f720d2e74fbd8a2fed51d3.zip	196,330,572
		12.4.4	16G140		9e6c706efabc3e7076fff0543382ee6a5d676e29.zip	196,499,600
		12.4.5	16G161		9adec001a6cdacd202558e759c61c84b459e1812.zip	196,043,168
		12.4.6	16G183		5d7d6f611bdee00e2007b3000e0c1471d3e5972d.zip	196,382,485
		12.4.7	16G192		37dea9273adce2edcc33efbf98dc63060dea50b3.zip	195,697,027
		12.4.8	16G201		4a5ecee677b705865cf54031694646ecf39447b0.zip	195,755,816
		12.4.9	16H5		987020bc7a1b20b5c8c74952c0c42c1914392453.zip	195,750,577
		12.5	16H20		c4e05b755216366288ac1caf30e0e2e1af7cb865.zip	32,487,071

iPad4,3

Users still running older versions of iOS (up to 9.3.5) are now presented with a dummy update file, and are instructed to use iTunes to install software updates.

Version	Build	Prerequisite Version	Prerequisite Build	Release Date	OTA Download URL	File Size
12.5.1	16H22	—		11 January 2021	417e2b3c3b2b67c6713447be55e2aadeca661478.zip	2,210,206,611
		11.3	15E216		ec08daf94ca9deedf275c445e9e52371e4d813cc.zip	1,323,604,875
		12.0	16A366		ce190a8865d876bb01b975cbc0c8f8d57da3bdf7.zip	759,340,836
		12.0.1	16A404		3532886f44227cee21e6827c5b4b8420b29c91c5.zip	759,328,445
		12.1	16B92		cc8b259a24e814ce45720b2caf2322d98062a9d6.zip	730,368,684
		12.1.1	16C50		fb775e3b7e789c8e4772ba5da28bcf18b6cf1119.zip	720,423,190
		12.1.3	16D39		1c27140e442b0631b0f7dbb418f6a4bd74bad389.zip	719,188,571
		12.1.4	16D57		259c697a610645fa0580a29f4bda0e76cbc418cc.zip	719,150,543
		12.2	16E227		582c74f1f1af5ec4bc7ddfd2dfd2b7c0aa39f829.zip	384,334,044
		12.3	16F156		d79d5421bfac7eb1123a4c2791fae4001815fbf6.zip	280,460,535
		12.3.1	16F203		fef7a5c8cf78fde0cc415daa5d0bac122a751752.zip	280,473,402
		12.4	16G77		e363f6142d43ef6de805f7f05e1a5ae8423d317b.zip	203,974,088
		12.4.1	16G102		09cc07c127bdb78566ef1a1374cfbe44e183259a.zip	203,176,027
		12.4.2	16G114		0a70d9f60d8ea891ca8a00bd2bb71ec1edc723df.zip	201,291,814
		12.4.3	16G130		4473070040e95c943a0fea752f3acde426ae9518.zip	196,330,790
		12.4.4	16G140		2fddc102165d2e945e073af3fbf79e045424aae2.zip	196,499,652
		12.4.5	16G161		2b6f716d4a2cbc362aad44d25414b8254cdddcd9.zip	196,043,156
		12.4.6	16G183		ecccde0df73ff0ea08ff79a7c679641fdaa653e6.zip	196,382,559
		12.4.7	16G192		866f184bd63df209e4cb251850a9136804a99478.zip	195,696,846
		12.4.8	16G201		fbef7f8a9b561562740d8a96a1333682fad7837b.zip	195,755,660
		12.4.9	16H5		29c191d096fa3051e03f83f508b15c771d7ae098.zip	195,750,168
		12.5	16H20		7551ea19bef72686a054d608f895928fa63f7cae.zip	32,487,170