An “unlock” removes the carrier restrictions on your iPhone’s cellular modem, allowing an iPhone owner to move and use their phone on another competing cellular carrier. In many countries, most notoriously the USA, nearly all cell phones and smartphones are sold with what is called a ‘carrier lock’ which only allows the device to be used on the network for which it was purchased. For example, an iPhone is sold in the USA through AT&T, and therefore the iPhones are locked to only use AT&T as a carrier. This is where the iPhone unlocking software comes into play, with a successful unlock, you can insert another carriers SIM card (T-Mobile for example) into your unlocked iPhone and the iPhone will now work on the new cellular carrier. You only need to unlock an iPhone if you intend on using another carrier than what it was intended to be used for. Note that unlocks are often dependent on your iPhone baseband, baseband is really just another name for the devices cellular communication transmitter, or modem.
All software unlocks for iPhone require you to jailbreak your iPhone before the unlock can be installed and activated.
ការចែករំលែក 