NonUI builds

See also: Beta Firmware

This (will be) a documented list of known factory firmwares, used by Apple workers in California to do engineering tests on prototype devices and also by factory workers on production ones during manufacturing. Factory firmwares are based on production iOS ones, but adapted for internal engineering tests, development and debugging. Unlike production iOS firmwares, factory ones have the following differences :

• Contain DEVELOPMENT Fused bootloaders in \Firmware\dfu\ and \Firmware\all_flash\all_flash.[board codename].factoryfa\.
• Contain DEVELOPMENT Fused kernel cache with more symbols, and with individual kexts in /System/Library/Extensions
• Contain Skankwerk (gear) logo image file in \Firmware\all_flash\all_flash.[board codename].factoryfa\.
• Have the /AppleInternal folder, which the hierarchy inside get priority over hierarchy in /.
• No SpringBoard, requires the use of daemons to launch SwitchBoard.app as a multi-app launcher instead.
• /usr and subfolders contain many UNIX command line utilities.
• SSH daemon is pre-installed - as dropbear
• Boot loader passes arguments to kernel (unlike RELEASE boot loaders as of iOS 5.0) which makes it easy to disable AMFI
• It has some Private Frameworks in /System/Library/PrivateFrameworks for internal GUI apps and command line utilities.
• Most internal applications require the use of SkankKit to produce special layers such as text on the framebuffer.

Unlike regular iOS Firmwares, factory ones are distributed in "restore bundles". Those are unzipped IPSW files which can be restored on devices using an internal restore software such as PurpleRestore. Release and factory firmwares "restore bundles" have the same packaging structure (bootloaders, kernel, restore ramdisk, update ramdisk and root filesystem).

Version	Build	Codename	Baseband	SHA1 Hash	Comments	File Size	Device
1.0	1A420	Alpine	03.06.01_G[1]	6e798e906c6590a7521ef89b731569be6d05b3aa	Originally available here, but was soon taken down.	109,813,128	iPhone
	4A57		?	?	Runs SwitchBoard, a simple launcher for other utilities.	?
3.1b	7C108b	Sierra					iPhone 3GS
Inf1	8A2062a	Inferno					iPhone 4
?	7C144	Inferno					iPod 3G
	7C1023e	Inferno
	8A2062a	Inferno					iPhone 4
6.0	10A23110z	Inferno					iPhone 5
7.0.3	11B64940j	Inferno					iPad mini 2
8.0	12A9331h	Inferno					iPhone 6