Firmware

This is the Mac OS X system the iPhone runs. Latest Apple download links can be found here.

Comparison of firmware versions

Device	Version	Build	Baseband	IPSW filename	Comments	Can be jailbroken?	Can be unlocked?	File Size	SHA1 Sum
iPhone	1.0.0	Heavenly 1A543a	03.12.06_G	iPhone1,1_1.0_1A543a_Restore.ipsw	Initial US shipment.	Yes	Yes
iPhone	1.0.1	Heavenly 1C25	03.12.06_G	iPhone1,1_1.0.1_1C25_Restore.ipsw		Yes	Yes
iPhone	1.0.2	Heavenly 1C28	03.14.08_G	iPhone1,1_1.0.2_1C28_Restore.ipsw		Yes	Yes
iPhone	1.1.1	Snowbird 3A109a	04.01.13_G	iPhone1,1_1.1.1_3A109a_Restore.ipsw		Yes	Yes
iPhone	1.1.2	Oktoberfest 3B48a	04.02.13_G	No download available	Initial Euro shipment.	Yes	Yes
iPhone	1.1.2	Oktoberfest 3B48b	04.02.13_G	iPhone1,1_1.1.2_3B48b_Restore.ipsw		Yes	Yes
iPhone	1.1.3	Little Bear 4A93	04.03.13_G	iPhone1,1_1.1.3_4A93_Restore.ipsw		Yes	Yes
iPhone	1.1.4	Little Bear 4A102	04.04.05_G	iPhone1,1_1.1.4_4A102_Restore.ipsw		Yes	Yes	331928	000811bac096011b50ebf6ec1ec2285b62fda4cb
iPhone	2.0	Big Bear 5A347	04.05.04_G	iPhone1,1_2.0_5A347_Restore.ipsw		Yes	Yes
iPhone	2.0.1	Big Bear 5B108	04.05.04_G	iPhone1,1_2.0.1_5B108_Restore.ipsw		Yes	Yes	496192	61de6a2bd6ceddc9ecabad1671b91a59b3824bc4
iPhone	2.0.2	Big Bear 5C1	04.05.04_G	iPhone1,1_2.0.2_5C1_Restore.ipsw		Yes	Yes
iPhone	2.1	SugarBowl 5F136	04.05.04_G	iPhone1,1_2.1_5F136_Restore.ipsw		Yes	Yes
iPhone 3G	2.0	Big Bear 5A345	01.45.00	No download available	Initial iPhone 3G shipment.	Yes	No
iPhone 3G	2.0	Big Bear 5A347	01.45.00	iPhone1,2_2.0_5A347_Restore.ipsw		Yes	No	460856	af9506ca0034e462674f9f59c5406f159eaf9fc1
iPhone 3G	2.0.1	Big Bear 5B108	01.48.02	iPhone1,2_2.0.1_5B108_Restore.ipsw		Yes	No	510208	e81c7ac7e334a3e9d81b3b47894bfaa1ec495482
iPhone 3G	2.0.2	Big Bear 5C1	02.08.01	iPhone1,2_2.0.2_5C1_Restore.ipsw		Yes	No	509304	bef7fef954293046420fbcf947379839178a195b
iPhone 3G	2.1	SugarBowl 5F136	02.11.07	iPhone1,2_2.1_5F136_Restore.ipsw		Yes	No	487000	c6957dcbf2a95ccfd6dce374a727b1b7700a9043
iPod Touch	1.1.0	Snowbird 3A100a	N/A	No download available	Initial shipment.	Yes	N/A
iPod Touch	1.1.0	Snowbird 3A101a	N/A	iPod1,1_1.1_3A101a_Restore.ipsw		Yes	N/A
iPod Touch	1.1.1	Snowbird 3A110a	N/A	iPod1,1_1.1.1_3A110a_Restore.ipsw		Yes	N/A
iPod Touch	1.1.2	Oktoberfest 3B48b	N/A	iPod1,1_1.1.2_3B48b_Restore.ipsw		Yes	N/A
iPod Touch	1.1.3	Little Bear 4A93	N/A	iPod1,1_1.1.3_4A93_Restore.ipsw		Yes	N/A
iPod Touch	1.1.4	Little Bear 4A102	N/A	iPod1,1_1.1.4_4A102_Restore.ipsw		Yes	N/A
iPod Touch	1.1.5	Little Bear 4B1	N/A	iPod1,1_1.1.5_4B1_Restore.ipsw		Yes	N/A
iPod Touch	2.0	Big Bear 5A347	N/A	Download link = warez	2.0+ is a paid upgrade series	Yes	N/A
iPod Touch	2.0.1	Big Bear 5B108	N/A	Download link = warez		Yes	N/A
iPod Touch	2.0.2	Big Bear 5C1	N/A	Download link = warez		Yes	N/A
iPod Touch	2.1	Sugarbowl 5F137	N/A	Download link= warez		Yes	N/A
iPod Touch 2nd Gen	2.1.1	Sugarbowl 5F138	N/A	iPod2,1_2.1.1_5F138_Restore.ipsw		No	N/A

Resources

Firmware List iPhone FW's Links (Russian) iPod Touch FW's Links (Russian) A link of interest...