Is there anyway to select the LTE Band or request Beta firmware to Adjust LTE Band? It would be nice to have LTE band scan and LTE Band Lock Speeds could be tested to find the best LTE band for a spec

I just purchased and installed MR600. im not sure if its using 4g+ my mobile phone is working on 4g+ so location is not a issue, also placed the router on best location to get higher signal strength p