OTA Updates

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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

iPad

iPad 1G

Version Build Prerequisite Build OTA Download URL Type Comments File Size
5.0.1b2 9A404 9A402 Download Link Unknown ?
5.0.1 9A405 9A334 a10da09644bd17d9ad67e88ba5224b719faa7b95.zip 41,066,648

iPad 2

iPad 2 (Wi-Fi)
Version Build Prerequisite Build OTA Download URL Type Comments File Size
5.0.1b2 9A404 9A402 Download Link Unknown ?
5.0.1 9A405 9A334 f2ae60b598040fb475668fba346720094187909b.zip 41,300,532
iPad 2 (GSM)
Version Build Prerequisite Build OTA Download URL Type Comments File Size
5.0.1b2 9A404 9A402 Download Link Unknown ?
5.0.1 9A405 9A334 ed440421275bd52d6748abf3a31837fda03cc086.zip 49,120,994
iPad 2 (CDMA)
Version Build Prerequisite Build OTA Download URL Type Comments File Size
5.0.1b2 9A404 9A402 Download Link Unknown ?
5.0.1 9A405 9A334 7e7666c0e4ab2dcb0977987da8501dc8f3361644.zip 55,647,323

iPhone

iPhone 3GS

Version Build Prerequisite Build OTA Download URL Type Comments File Size
5.0.1b2 9A404 9A402 Download Link Unknown ?
5.0.1 9A405 9A334 19f78b3b21dc48a8a5baea455377c134321b5887.zip 40,811,305

iPhone 4 (GSM)

Version Build Prerequisite Build OTA Download URL Type Comments File Size
9A5259f 05e3a3f0fc43c968f93af8464720c50fbd0ad620.zip Carrier
9A5274d cde871abbf88d40ff2de05b729ae7d77299cb718.zip Beta
9A5274d af342f8dbdcfb16cecef31b915b172b1b54923ca.zip Carrier
5.0.1b2 9A404 9A402 accafa6d7e44bac2f21f52e579b20ec877d725e2.zip 45,464,950

iPhone 4S

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 58,221,403

iPod touch

iPod touch 3G

Version Build Prerequisite Build OTA Download URL Type Comments File Size
5.0.1b2 9A404 9A402 Download Link Unknown ?
5.0.1 9A405 9A334 0dac8a3eb9292d05d013d84ad3c2f6ca5b74c0f3.zip 39,868,989

iPod touch 4G

Version Build Prerequisite Build OTA Download URL Type Comments File Size
5.0.1b2 9A404 9A402 Download Link Unknown ?
5.0.1 9A405 9A334 ee5492289cb3126be3ccbaf55f9f6cd8eb3d1ccb.zip 42,019,565
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