With the announcement of Apple's second wholesale list, mainland China is still not on the list. Apple fans are disappointed to see the iPhone 6 sold in other regions. For this reason, China Unicom will significantly reduce the price of the iPhone 5s, and at the same time, it will release an upgraded 5s, which can support China Unicom's "dual 4G and dual 100M" mobile network.

It is reported that at present, China Unicom has changed the model of the original iPhone 5S from A1528 to A1530, adding support for dual 4G networks. It is expected that the same is true for the 8GB version of the iPhone 5C in the future.

Unicom's replacement of the iPhone 5S model means that A1528 users are completely tragic. According to Unicom, A1528 cannot use 4G networks because its hardware does not support it. In fact, A1528 can support LTE FDD in hardware, but cannot support TD-LTE.

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