I have been looking into some Chineses clones of cell phones and a majority of them use the MT6589 SoC which it very cross compatible with firmware across the board of other phone that use this chip. Most websites say these phone only support 3G:WCDMA 850/2100Mhz which wouldn't work in the USA for 3G speeds. But according to the official site for this chip it has an advanced multi-mode UMTS Rel. 8/HSPA+/TD-SCDMA modem built into it.
My questions are,
1. If this SoC has HSPA+ built into it then why do most site say it only has WCDMA 850/2100Mhz and not the HSPA+ frequencies?
2. If this Chipset has HSPA+ built in but just not enabled, how would we enable it?