[T-Mobile Samsung Galaxy S6] V0latyle:
EPD1 and EPF1 are 6.0.1 Marshmallow.

[MENTION=7702434]ninjadroids[/MENTION]:

Take this as you will but reading back through this thread gives me the impression that you lack the necessary know-how to customize your phone. I highly suggest you leave it stock for the time being until you know EXACTLY what you are doing.

My reasons for saying this:

-In your first post you state that "using Odin 3.10.7 I flashed using Twisted Sixx Custom ROM". To my knowledge there are NO custom ROMs designed to be flashed via Odin. They are in .zip files, to be installed via recovery ONLY.

-This is actually my mistake - the G920T bootloader does not have a lock function; flashing a custom recovery will simply trip the e-fuse and render it Knox 0x1 warranty void.

-You are not familiar with what Odin images are for the G920T, or what version they are. You should NEVER flash ANYTHING via Odin unless you are absolutely sure it is intended for your specific device.

-In the 9th post you state your bootloader is unlocked (again I apologize for the confusion) but in the 3rd line you say you're on unlocked Marshmallow. I'm going to assume you have limited knowledge of what the bootloader, the recovery, download mode, and system are.

-You mention seeing the red "RECOVERY IS NOT SE ANDROID ENFORCING". This is an error message generated by the bootloader saying the recovery is custom and did not pass the security check...but it is also completely normal. I get it every single time I go into TWRP...which works just fine.

-You do not understand what "MM" means when all of us including you are talking about Marshmallow.

-You do not understand what a "bootloop" is. For the sake of education, a bootloop is exactly what it sounds like - your device gets stuck in a loop while booting. This is generally mentioned when it is persistent - the device does not complete the boot process, coming to a stable useable Android interface. This is indicative of several possible problems; most likely you did something incorrectly, causing the boot process to halt, in which case the phone restarts itself to attempt to boot again, hence the loop.

-You do seem to understand sideloading via ADB and I'll give you credit for that. But when using the button combo (Vol Up+Home+Pwr) to boot into recovery, you WILL boot into recovery...whether that is stock recovery or TWRP. Some reboots may prevent this; if in doubt, hold Vol Down+Home+PWR until the screen shuts off; immediately go to Vol UP while still holding Home and Power.

-In the 13th post you ask about flashing kernels via Odin. Firstly: custom ROM .zips contain the kernel intended to work with that ROM. There is no need to flash anything separately. I am a little fuzzy on how root is accomplished on stock Marshmallow; it used to be we could flash SuperSu via recovery, but now there is talk about systemless...Anyway, I will reiterate what I was saying about Odin: DO NOT USE IT unless you know EXACTLY what you are doing. You have the potential to turn your phone into an expensive paperweight.

I am not trying to put you on blast or criticize you; I'm trying to help you avoid bricking your phone. There are a lot of things that could go wrong; you shouldn't be messing with something you don't understand, especially if you don't know how to fix it if something goes wrong.