Unlocking, SemiTethered, Tethered, Untethered Jailbreak!

Unlocking iPhone

Unlocked phones can be used on the network of any compatible provider with the insertion of a compatible SIM card. Some phones that are locked can be unlocked using computers or special phone codes, though this can invalidate warranties.

Unlocked is the term used to describe mobile phones that are not tied to a particular service provider in order to be used. Many cell phones are tied to a single cellular provider at their introduction, but are later unlocked for use on many networks.

In iPhone

The iPhone is SIM locked, meaning that it can only be used on AT&T and Verizon's networks in the U.S., a move that has caused substantial criticism from some users.

However, a number of third-party programmers have found ways to unlock the iPhone through both hardware and software. Few of these techniques have been widely released and the iPhone seems only to work on T-Mobile and AT&T for now.

Unlocking vs Jail breaking

While Unlocking and Jail breaking are not the same, they're similar.

While jail breaking and unlocking are not the same, they're similar. Jail breaking allows users to install whatever software they'd like on their iOS device, while unlocking allows them to choose their phone service provider. The two things are often done at the same time, but they're not the same thing.

The Difference Between An Untethered Jailbreak, Tethered Jailbreak And SemiTethered Jailbreak

Difference Between Untethered, Tethered And Semitethered Jailbreaks

• 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, 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 apps 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.