Netizens bought Taiwan and American version of iphone with cheap pictures. The American version is cheap and has a relatively high cost performance. As a result, after checking the machine, I found that it actually had an Internet lock.
What is a network lock? In fact, it is to lock the mobile phone's network and can only use the SIM card of the designated operator. The biggest problem with this kind of machine is that the iPhone with network locks are all overseas versions of the iPhone, which means that the designated operator is also an overseas operator, and it is not useful to get it back directly to the country.
Of course, powerful mobile phone dealers still have solutions. Some will install card stickers on their phones, so they can temporarily plug in domestic mobile phone cards for use, but this method is not very stable, and the phone cannot be restored or flashed casually, etc.
So how do you know if the iPhone you bought has a network lock?
is actually very simple. You just need to query the serial number to know that the serial number is the serial number that recognizes the original information of the iPhone. You can query the sales location of the phone, the memory capacity, whether there is a network lock, etc.
