R11e-LTE6 CA Help!

Hi Guys !

I have a R11e-LTE6 with v20 Firmware.
Is there any Chance To get a carrier aggregation between B1+B3 ?
For a Austrian ISP called drei.at

At-Command or something ?

Thanks for all Answers!

You not search this forum.
You not read a vendor documentation like: https://mikrotik.com/product/r11e_lte6#fndtn-downloads > Brochure.
From B3/1/7 only B3+B7 can be 2xCA as INTER..
B3+B3 or B1+B1 or +B7+B7 as INTRA
Every B3/1/7 can be 2CA with B8/20

Read documentation or search this forum http://forum.mikrotik.com/t/sxt-lte-4g-cat6/134468/1 .

There hardware limitation or software ? Maybe can expect firmware upgrade for B1+B3?

This is hardware limitation, in my situation B3+B1 would be grate too.