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
5.0.1 9A405 9A334 f2ae60b598040fb475668fba346720094187909b.zip 41,300,532

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
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