Originally Posted by
Aus_Mal
Tested today, and my Oneplus 3T merrily picked up 4g+ when I set data to my second sim (in the home country). In my home country, 4g is available on my primary sim.
So, It doesn't appear to be true of the Oneplus 3T!
This *was* true of the OnePlus 2. But as of the 3 and eventually 3T, both SIMs can handle any network.
In many places networks are turning off 2G and that is a real PIA when you need it in your second SIM.