A1528 and A1530 Models for iPhone 5s?

There are only 2 models of iPhone5s currently available in China - A1528 and A1533. I'm an iPhone4 user (still using 2G on China Mobile network) and I'm planning to upgrade to iPhone5s probably next month, I'm also looking forward to that the one I get can support future LTE bands in China as well as LTE channels outside China (in the Philippines or Singapore). Based on the spec presented by Apple China website, this A1528 doesn't support any LTE channels (FDD-LTE or even their TD-LTE), I'm really intrigued if this is true or not? Some Chinese blogs mentioned that this A1528 is basically the A1530 model as China LTE licenses are not out yet or there's really a different A1530 model that will soon be sold. I would be very glad to have some guidance on this. Thanks in advance…

Some additional info below:

1.) Model A1528*：UMTS/HSPA+/DC-HSDPA (850, 900, 1900, 2100 MHz); GSM/EDGE (850, 900, 1800, 1900 MHz)
…
--- no LTE bands mentioned…

http://www.apple.com/...-5s/specs/

2.) Model A1530*: UMTS/HSPA+/DC-HSDPA (850, 900, 2100 MHz); GSM/EDGE (850, 900, 1800, 1900 MHz); FDD-LTE (Bands 1, 2, 3, 5, 7, 8, 20); TD-LTE (Bands 38, 39, 40)

http://www.apple.com/...-5s/specs/

I even hear reports that A1528 have no audio on Facetime…

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