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Sundance 10A316
Background
The following is a build of SwitchBoard based on an internal version of 6.0. Along with its filesystem size of 4.1 gigabytes, this build also contains information about Haywire, an unreleased cable used by Apple.
Haywire Firmware Findings
In /var/mobile/Library/Assets, you will find a folder containing the name haywire. Inside, you'll find multiple folders seemingly used for restoring. When looking in these folders, you'll find the codenames B137 and B135, with encrypted development components for each, as well as an encrypted ramdisk, with no known keys. They also have iBSS, DeviceTree, and Kernelcaches, but nothing more. Upon further exploration, the heavy lifting is done by a modified version of PurpleRestore built into /System/Library/AccessoryUpdaterBundles/Haywire.bundle. A form of this bundle can also be found in certain production firmwares in the same directory.
Applications
After booting up, SwitchBoard.app lets you choose from a slew of apps. They are:
- BatterySet (hidden)
- BurnIn (hidden)
- GrapeCal
- LCDMura
- LcdUTest
- LCMFlicker
- Operator
- QRCode
- WiPASmini
- ThermalDOE
- Reliability
