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Firmware
This is the Mac OS X system the iPhone runs. Latest Apple download links can be found [here].
Versions
Device Version Build Baseband ipsw filename Comments iPhone 1.0.0 Heavenly 1A543a 03.12.06_G iPhone1,1_1.0_1A543a_Restore.ipsw Initial US shipment. iPhone 1.0.1 Heavenly 1C25 03.12.06_G iPhone1,1_1.0.1_1C25_Restore.ipsw iPhone 1.0.2 Heavenly 1C28 03.14.08_G iPhone1,1_1.0.2_1C28_Restore.ipsw iPhone 1.1.1 Snowbird 3A109a 04.01.13_G iPhone1,1_1.1.1_3A109a_Restore.ipsw iPhone 1.1.2 Oktoberfest 3B48a 04.02.13_G No download available Initial Euro shipment iPhone 1.1.2 Oktoberfest 3B48b 04.02.13_G iPhone1,1_1.1.2_3B48b_Restore.ipsw iPhone 1.1.3 Little Bear 4A93 04.03.13_G iPhone1,1_1.1.3_4A93_Restore.ipsw iPhone 1.1.4 Little Bear 4A102 04.04.05_G iPhone1,1_1.1.4_4A102_Restore.ipsw iPhone 2.0 Big Bear 5A347 04.05.04_G iPhone1,1_2.0_5A347_Restore.ipsw iPhone 2.0.1 Unknown 5B108 04.??.??_G iPhone1,1_2.0.1_5B108_Restore.ipsw iPhone 3G 2.0 Big Bear 5A347 01.45.00 iPhone1,2_2.0_5A347_Restore.ipsw iPhone 3G 2.0.1 Unknown 5B108 01.??.?? iPhone1,2_2.0.1_5B108_Restore.ipsw iPod touch 1.1.0 Snowbird 3A100a N/A No download available Initial shipment. iPod touch 1.1.0 Snowbird 3A101a N/A iPod1,1_1.1_3A101a_Restore.ipsw iPod touch 1.1.1 Snowbird 3A110a N/A iPod1,1_1.1.1_3A110a_Restore.ipsw iPod touch 1.1.2 Oktoberfest 3B48b N/A iPod1,1_1.1.2_3B48b_Restore.ipsw iPod touch 1.1.3 Little Bear 4A93 N/A iPod1,1_1.1.3_4A93_Restore.ipsw iPod touch 1.1.4 Little Bear 4A102 N/A iPod1,1_1.1.4_4A102_Restore.ipsw iPod touch 1.1.5 Little Bear 4B1 N/A iPod1,1_1.1.5_4B1_Restore.ipsw iPod touch 2.0 Big Bear 5A347 N/A No download available (protected) iPod touch 2.0.1 Unknown 5B108 N/A No download available (protected)