Many people ask what does untethered mean. Here are the definitions Untethered, Tethered and Semitethered Untethered vs Tethered vs Semitethered Jailbreak Untethered Jailbreak: An untethered jailbreak means that your iPhone, iPod Touch or iPad will function as normal; except it will be jailbroken. Tethered Jailbreak: A tethered jailbreak means that each time you reboot your iDevice (iPhone, iPad, iPod Touch), the boot process will fail (you’ll get stuck on the Apple logo). To get around this you will need to plug your iDevice back into your computer and re-run the jailbreaking tool you originally used to jailbreak your iDevice. SemiTethered Jailbreak: A semitethered jailbreak means that you still have a tethered jailbreak but if you loose power or your iPhone, iPod Touch or iPad crashes it will re-boot into a semi-functioning state where you can use applications such as Phone/SMS. To put your iDevice back into a functioning and jailbroken state you will need to plug your iDevice back into your computer and re-run the jailbreaking tool you originally used to jailbreak your iDevice.