After China Mobile TD-LTE large-scale cloth network, its 3G service TD-SCDMA has been exposed more than once in the future to reduce the scale and even stop taking the news, some users given the news from the previous iOS 11.3 Beta , China Mobile started to shield the iPhone from connecting to the TD-SCDMA network.
In iOS 11.3 Developer Beta Beta 1 upgrade at the same time, the carrier profile has also been upgraded to v31.5 version, after users of the test, even if the mobile MiFi 3G signal full case, there is no local mobile 4G signal, the default connection 2.75G Edge network, the new profile allows users to use China Mobile can only switch between 2G and 4G.
According to IT House previously reported that from the perspective of China Mobile's network quality, TD-SCDMA compared to 2G and 4G networks far apart, from the current point of view between 2G and 3G, China Mobile may take the lead in the future 'cut' TD-SCDMA.
