2.2.1 Firmware Download

2.2.1 firmware download — compatible with 3 devices, released Unknown, build 5H11、5H11a. Download links direct to Apple servers, with signing status verification and SHA-256/SHA-1/MD5 checksum validation. This version is no longer signed, for downgrade reference only.

iPhone (2)

2 devices support this version

Device	Identifier	Build	Size	Signing	Action
iPhone 2G	iPhone1,1	5H11	246 MB	Unsigned	Details →
iPhone 3G	iPhone1,2	5H11	246 MB	Unsigned	Details →

iPod touch (1)

1 devices support this version

Device	Identifier	Build	Size	Signing	Action
iPod touch 2G	iPod2,1	5H11a	278 MB	Unsigned	Details →