@Kathir Okay. I sometime dint get 4G+ with internal antenna, I used external LPDA antenna in which i got 4G+. Sometime I got in internal antenna also. May be u have have a check at the roof. But if...

@Kathir First you need to check the feasibility of band combination by the router. In your case, only B3+B40 is feasible by the router. B1+B3 and B1+B40 is not supported so no point in trying that. I...

@Kathir Yes bro. In my area, Airtel and Vi does not have 4G in two bands. They have 4G in only B1 so both of these doesnt have 4G+ in my area. I tried in Jio with B3+B5 and I am getting 4G+ but no...

@Kathir Try to select the same bands in the router as your Samsung phone connects for aggregation.

@OwnStorm I have Pixel2, never got 4G+ in it. My area is also very interior rural area. I have MR600 V2 which has option of selecting band by default. I tried with Jio, Vi, Airtel but never got 4G+...

@Denarius Yes thanks got it. Actually it was giving error when I search bands manually that is why I thought we need to have some other beta firmware to select bands manually. When I turn off mobile...