G5 owners - happy or not?

Mate i hate limited internal storage as it poses to many problems for my uses so i found this hack (without voiding warrant by the way) https://www.youtube.com/watch?v=H31UOrXJKH4&index=2&list=PL293MpguZMjDHknUb5_TbENv5DVW6qkYt that allowed me to bring back the Adoptive Storage option thats built into Marshmallow that LG removed (well on the surface they did but its actually still in there) following this tutorial and luckily for me fortuitous timing would have it with this Samsung and the Note 7 debacle Samsung were giving away there 256gb micro sd card for free on a promotion to those affected Note 7 users which then saw loads of people on ebay with great feedback selling them off for cheap with a $250 price point i manged to get mine for $100 which luckily upon investigation into Adoptive Storage it lives and dies based on the 4k speeds and this card is pretty much top 3 cards in existence for 4k speeds literally the rest them all suck big time for 4k speeds so i now have a LG G5 that states i have 267 GB to use how i so wish without restriction.

Drenco, are you saying I have to have a 4k SD card to make this hack possible?