Apple phones have the difference between locking and unlocking.

Locking the version means adding a network lock, which means binding the operator. Such a mobile phone can only be used normally if it is plugged into the SIM card provided by the operator, but it cannot be used if it is plugged into other cards, such as the American version of AT & amp； T machine can't use sim cards of Unicom and Telecom in China. The following is the difference between the lock and unlock of Apple phones that I collected. Welcome to reading.

Unlocked iPhone

Lock-free version means that SIM cards that can be inserted into any operator can be used normally and are not restricted by operators. The lock-free version can upgrade the firmware at will, without considering the problem of signal cracking.

Locked iPhone

Locking the version means adding a network lock, which means binding the operator. Such a mobile phone can only be used normally if it is plugged into the SIM card provided by the operator, but it cannot be used if it is plugged into other cards, such as the American version of AT & amp； T machine can't use sim cards of Unicom and Telecom in China. If you want to use another SIM card, you must crack and unlock it. When upgrading the firmware of the locked iPhone, be careful about baseband upgrade (insurable baseband upgrade), because some baseband cannot be unlocked.

What happens if you don't unlock it?

For example, if the Japanese version of the lock machine is not unlocked, you can't make phone calls, send text messages, surf the Internet through wap, etc. Can only be used as iPod Touch.

Identifying the iPhone is a lock-free method.

Of course, the simplest and most direct way is to use other operators' sim cards for verification, such as inserting a Unicom card into the US version of the mobile phone to see if it can be used normally. If there is an unlock signal, there is no lock.

If you don't have a sim card at hand, you can identify it by inquiring about the model.

Open the "Settings-General-About this machine-View mode" of iPhone, and the information here represents some important information related to the place of origin. Take "MD276LL" as an example, where "LL" stands for "American Edition". Let's take a look at it again. Here are some common locking and unlocking models. You can refer to the following information to determine whether there is a lock.

Lock model (the last digit /A is the identification code, which is not displayed on the machine, so don't worry):

United States of America

MC608LL/A-16GB black

MC6 10LL/A-32GB black

MC3 18LL/A-16GB black

MC3 19LL/A-32GB black

Canada

MC603C/A-16GB black

MC605C/A-32GB black

Japan

MC603J/A-16GB black

MC605J/A-32GB black

South Korea

MC603KH/A-16GB black

MC605KH/A-32GB black

the Philippines

MC603PP/A-16GB black

MC605PP/A-32GB black

Australia

MC603X/A-16GB black

MC605X/A-32GB black

Germany

MC603DN/A-16GB black

MC605DN/A-32GB black

Britain, England

MC603B/A-16GB black

MC605B/A-32GB black

France

MC603FB/A-16GB black

MC605FB/A-32GB black

Spain

Mc603y/a–16gb black

Mc605y/a–32gb black

Unlocked iPhone

China

MC603CH/A-16GB black

MC605CH/A-32GB black

Hong Kong, China

MC603ZP/A-16GB black

MC605ZP/A-32GB black

Macau, China

MC603ZP/A-16GB black

MC605ZP/A-32GB black

Taiwan, China

MC603TA/A-16GB black

MC605TA/A-32GB black

Singapore

MC603ZA/A-16GB black

MC605ZA/A-32GB black

Malaysia

MC603ZA/A-16GB black

MC605ZA/A-32GB black

New Zealand

MC603X/A-16GB black

MC605X/A-32GB black

The United Arab Emirates

MC603AB/B-16GB black

MC605AB/B-32GB black

Russia

MC603RS/A-16GB black

MC605RS/A-32GB black

Greece

MC603GR/A-16GB black

MC605GR/A-32GB black

Italy

MC603IP/A-16GB black

MC605IP/A-32GB black

Unlock iPhone tips

If your iPhone4 is 0 1.59.00 baseband and iPhone3GS/iPhone3G is 04.26.08,05.11.07,05.6438+02.01,

05. 13.04, and 06. 15.00 baseband can be unlocked with the version of ultrasn0w 1.27.

How to query the baseband: Open "Settings-General-About this machine-Modem firmware" of iPhone.