Hi all, I want to intoduce myself to this Forum and I have a question about Xiaomi mi4i device. I have bought it from a Chinese shop, and although in the specifications the device has the 2600 mhz band available to connect to 4g network, in box the specification only shows 1800 mhz band. Is there any way to verify the bands which my device is ablet to connect to? For example, a "secret" menu, an app? Thank you in advance.