HTC Desire 816 -How to use a particular sim for data usage and restrict the other? I have got an HTC Desire 816 phone. I am not able to restrict the data usage to only one sim. If i enable the data usage for the Slot1 sim, the Slot2 sim also gets enabled for data usage. Any idea how to restrict this?
In the dual network manager, you can specify which sim to use for data network connection. 
In Settings > dual network manager > Preferred data network > select either slot 1 or slot 2.