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BurnIn
BurnIn is codename for a tool used by Apple. Nothing is really known about it, but somebody on Hackint0sh got their iPhone back with BurnIn on it, suggesting that it is a diagnotstics or a repair tool.
What it does
Leftover strings on firmware 2.1 have told me this; Apple restores a special firmware to the iPhone, but it is based on a regular firmware. At boot, /AppleInternal/Applications/SwitchBoard/BurnIn.app/BurnIn will run. It checks /AppleInternal/Diags/purpleskank/config.plist for configuration information, such as version (v3.0 in this case), where to store the logs (/Library/Logs/BurnIn/ in this case), what level to set the backlight to, and also, some kind of cleanup script is defined (/AppleInternal/Diags/Utilities/burnin_cleanup.sh). What it actually does is still not known though. Two log files are also left by it, by doing whatever is done. They are /Library/Logs/BurnIn/burning_log.xml and /Library/Logs/BurnIn/burnin_log.txt.
BurnIn on iPod touch
The day of the launch, numerous iPod touches shipped with BurnIn on it. In order to get it off them, you just did a restore. A few of these were sold on eBay.
- BurnIn on iPod touch
boot logo
The main menu.
Wi-Fi antenna test.
The "Bluetooth" screen.
The "Battery" screen.
The "Accelerometer" menu.
The "Buttons" menu.
Speaker screen.
"Touch" screen.
The "Serial Number" screen.
Tests the ambient light sensor.
A test for any connected headphones.
The temperature inside the device.
