Wow, this worked, thanks. Still, something is different because I remember using headphones used to work on a phone. So now just my first and main reason remains. Maybe you can solve that, too?
Multistar has had an update to version 4.1.02. That should fix your problem.
I've read all the commnents but I want to be sure I'm understanding it right. You flashed the Korean user T870 on your US version? If so would that mean I can install in on my T-Mobile version of SM-T978U. It wouldn't have the carrier bloat and disabled features like calls and texts on other devices missing from settings?
Pretty straight forward.Maybe you could post a simple how to flash using the HOME_CSC option for people that are unsure to follow ?
For anyone that didn't know you can grab this above Korea version of One UI 3.1 at
this below link
Today i have download theThaïland Firmware for the SM-T976B (NOT N), downloaded Odin (not patch), And flash my S7+ 976B. I still conserve my XEF CSC, so this is good, all is OK