SM-N910F > Bootloop // ROM Problems || Please Help

So.. hello.
Normally I don't come to forums to get help... but yeah. This is kinda bad.
I've got a little situation here.
I got my new Samsung Galaxy Note 4 (SM-N910F).
It was delivered with Stock 5.1.1.

First try:
I booted to the Downloader, fired up Odin, let it download the Autoroot.
Then I've got a bootloop.

Second try:
Booted into the Downloader, fired up Odin, let it install the 5.0.1 Stock ROM (Ending with 'BOB4')
It booted normally , then two things pop up constantly:
Something like "phone.xxxxxxxx.xxx Service crashed".
and "NFC crashed."
So I can't even unlock that phone.

Third try:
Booted into the Downloader, fired up Odin, let it install "N910FXXU1COI3_DevBase_alexndr".
Ended up in a Bootloop.
Then I tried to install the Bootloader aswell as the Modem and the Kernel, which are also in alexndr's Thread.
Ended up in the same Situation as the second try.

I don't no what to do anymore.
I'd really love to hear some help from you guys.

Greetings,
R3dRacoon

______________
UTC+1 (If I don't answer instantly)
And yeah, I've used search. And that for like the whole day.