Tethered, semi-tethered, and untethered

Highrisedrifter

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Sep 19, 2012
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A tethered jailbreak means when the jailbreak is applied, the device turning off and on again will render all jailbreak apps/tweaks and some standard apps unusable until you've run a computer program with the device plugged in.

Untethered is the opposite. You can turn the device on and off like normal and the jailbreak stays working.

Semi-tethered is a development by Saurik, the creator of the Cydia store. It allows the device to reboot and use the standard apps that would not work on a tethered jailbreak, but your jailbreak apps/tweaks will still be unusable.