I have 2 cards. The one in which it is 3G, I want to set it as my default Data Sim card. While the other Sim shall be set as overall default sim card for calls and other stuffs which needs a LTE preference. But I have data on my 2nd sim which is 3G/H+ and I can't set it as my default data usage Sim card. This phone doesn't support dual LTE support, hence the only way possible is to set my 3G sim as my data preferred Sim. Please help me!