Originally Posted by TheWreckHER
But it just reboots constantly never starts up
I need a little more information from your phone in order to accurately help you.
- What version of stock TW were you running when you rooted (prior to flashing a ROM)?
Based on what you're describing, you most-likely were on Jellybean (MJ4) when you did your rooting and installed TWRP.
- What is your bootloader version?
You can see this on the same boot-up screen where you see the "KERNEL is not SEANDROID ENFORCING" message.
- What is your TWRP version?
Some ROMs need the newest version of TWRP in order to install correctly. For our phone, older versions of TWRP (2.6.X.X) can only be used to install Jellybean (MJ4) Roms, while the newer versions of TWRP (2.7.X.X) can only install KitKat (NAB, NC5) Roms.
- What ROMs have you been trying to flash?
This will help us understand if there are issues with what you're installing.
The main reason I ask these questions is that there is a very specific way
of upgrading from Jellybean (MJ4) to KitKat (NAB, NC5) on our phones. Most people (like myself) rooted on other phones and aren't used to the bootloader restrictions Samsung introduced on the Note 3, so we expect to just upgrade from MJ4 to NC5 like it's no big deal.
Also, there's the issue with TWRP... because of the whole bootloader thing, one version of TWRP cannot work for both JB and KK Roms. It's just the way it is... We've helped plenty of people who were trying to flash KK Roms on an older version of TWRP, only to have errors and bootloops.
Hope this helps!