mobile

First sorry for my english, i will explain my doubt with a little introduction.

I have been readying about unlock bands of Qualcomm devices, i have a ZTE Grand S2 s291 (best page for device spec, in my opinion http://www.devicespecifications.com/en/model/b66b2a5e), the important thing is that it has a Qualcomm Snapdragon 801 MSM8974AB (http://www.devicespecifications.com/en/model/b66b2a5e). If i understood well with the information i read, the snapdragon 801 processor has an RF Qualcomm RF360 (https://www.qualcomm.com/media/docum...duct-brief.pdf) , means that you have all hardware support for 2G/3G/4G LTE frequency bands, from 700-2700mhz.

Well, i want to know if i'm right with this information, in the begin of my little poor investigation wanted to know which is the component in the smartphones that limits the support of different frequency bands, and i guess in this case is Qualcomm RF360. I wondered this because, all the tutorial said how to unlock bands of Qualcomm device in general.

I unlocked the bands in my phone, but certain frequency bands can't test if are working.

Thanks in advance, any help it will appreciated.

Regards!

Please confirm if i'm wrong or not, i write this thread for helping people that are in my same case.