Since the launch of the iPhone 3GS in China in June 2009, many versions of the iPhone have also increased. Now, there are many iPhones from other regions on the market in China, such as the American version, the Korean version, the Japanese version, the Asia-Pacific version, the French version, etc., but most of them are basically the National Bank and the American version.
The American version is divided into locked machine and unlocked machine, and the locked machine is the operator's customized machine and cannot be used directly. No lock machine without operator and network lock restrictions, can be used arbitrarily, there is a lock is a network lock restrictions, and today this fan bought an iPhone 12, the seller said that it is no lock machine, can be used normally, upgraded.
From the basic data of this machine can be seen this iPhone 12, the memory of the machine is 64G, the model is LL, it is the American version of the machine, and the running lock is also no SIM card limit, but we need to know that the black solution machine is also limited without SIM card limit. Not only will the lock machine display "SIM card locked", but some machines after official release will also display "SIM card locked". There is a lock machine on the card sticker and black solution machine, the card sticker machine is to show that the SIM card is locked, and the black solution machine shows no SIM card restrictions, black solution is to deceive the Apple server through technical means, activate the mobile phone that originally had a network lock. Mainly by modifying the ICCID, it is possible to trick Apple servers into changing IMEI permissions into an unlocked version recognized by the server, so that it can use networks in other countries. There are certain risks in black solutions, once found out by Apple's servers, the mobile phone network will be re-locked! Basically, as long as it is not restored and flashed, it can be upgraded normally, and it is no different from the lock-free version when used.
The screenshot can see the whole machine report of this iPhone 12, the memory of the machine is 64G, the color is blue, the activation time is 21 years, the warranty has expired, the operator is T/S, there is a network lock, indicating that the machine is locked, but about the machine display no SIM card limit, indicating that the machine is a black solution machine, and there is no problem with other data.
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