Thanks for replying. If I turn the magic Box off, Using the app LTE discovery My phone toggles between band 25 and band 26. My signal strength is about 106 Dbm. When I fire up the magic Box during the boot process I get exactly one bar . I was told that is enough with a magic Box to work. It is my understanding that since under normal circumstances I cannot see band 41 the magic Box is actually connecting to donor band 25. I have a new Samsung S8 with the X16 snap dragon modem. It is my understanding that modem can connect to 3 separate bands simultaneously. My fear is that when using the magic Box as you know it simulates band 41 at a strong signal And thus my phone disregards band 25 and 26 which means my over all throughput is reduced significantly. That is only my understanding. Any thoughts on this matter greatly appreciated.