Editing SIM lock (section)

=== China ===
Under a regulation enacted by the Ministry of Industry and Information Technology, locking phones to a specific carrier is prohibited if other carriers are also using the same type of network technology. Therefore, all phones approved to be sold in China are never locked to begin with regardless of whether the consumer purchased the phone under a contract or not. However, since all three Chinese carriers each uses a different network technology after the adoption of 3G, carriers started to ask phone manufacturers to disable support for network technologies not used by such carrier even if the phone has been originally designed to be capable of supporting those network technologies. Such a move does not result in violation of the ban on phone locking. For example, an iPhone 6 was designed to be capable of supporting LTE FDD, LTE TD, CDMA, and [[UMTS|WCDMA]] technologies but China Mobile reached a deal with Apple to create a special model for China Mobile in addition to the off-contract retail model sold by Apple and third party vendors with the capability to support LTE FDD, CDMA, WCDMA, which are the technologies not used by China Mobile, disabled, effectively making such special contract model incompatible with the 3G and 4G networks of other carriers even though such phones are never locked.{{Citation needed|date=August 2023}}