[Verizon Galaxy Note 4 General] Tripper511:
There was no need to search the forums for other versions of firmware's. I already provided those links in the

TROUBLESHOOTING

section of this guide. The firmware included at the top of the guide (used for rooting) is a bare-bones, developer edition, stock rom that ONLY includes the most basic functions to run the phone. At the bottom of this guide (under "troubleshooting") was the link for both the bare-bones firmware (which is used for rooting) along with the FULL firmware's (used for unrooting).

Here is a copy of Firmware links from the BOTTOM of this guide:

The reason you can not use a FULL 5.1.1 is because it has KNOX pre-programmed into it and will trip a flag on your phone if you try rooting while it is installed. The developer edition 5.1.1 (the one in the guide) DOES NOT have KNOX in it so there is no way to trip a flag even if you mess up the process. You can try to perform this with a full 5.1.1 however there is no way to tell what junk is inside that might effect the rooting process. In order to clean up a FULL 5.1.1 to make it root compatible would involve tweaking tens of thousands of lines of code. While the developer edition is already clean.

Your bootloop Problem:

First read the Q&A. This problem is directly addressed there. Here is what it says:

Additionally: If you're having a problem with your SD card format it on your computer (as a FAT32). If you're using some no-name brand SD card or a ripoff clone from China it is most likely defective (something people don't find out until they actually attempt to run a lot of information over it). It's not possible for ANY SOFTWARE to ruin an SD card, it should always work fine after a format unless there was something physically defective to begin with. It's just memory storage, there is no operating system in it.

Why Kingroot vs KingOroot?

Personally I prefer to run the phone version of Kingroot/KingOroot because that step is the most dangerous step in this process. The whole reason root was achieved on the Verizon Note 4 was because some people in China created Kingroot/KingOroot which found a way to TEMPORARILY root the phone. However, coders discovered there was suspicious coding inside that might try to steal information from you. Because no one was able to get a far as this software did other coders developed a way to use Kingroot/KingOroot to get through the "door" of the phone and then take additional steps to permanently root the phone, thus allowing you to remove Kingroot/KingOroot afterwards. Thus keeping the security and integrity of the phone safe. I'd much rather run a risky program like that on my factory phone then on my PC which has tons of private information on it. However both programs might have changed in the last year (for better or for worse) so it's really a personal decision.

You should really read the troubleshooting section at the bottom of this guide

and watch the YouTube videos I linked in that section. A lot of the problems and questions you are having are answered there. The videos are especially helpful because you can watch in REAL TIME how long booting and rebooting processes should take.

For you 4G/SIM Connection Issues:

Another possible solution to your SIM and 4G issue might be in the settings. After root goto: Settings>More networks>Mobile networks>Network mode>LTE/GSM/UMTS>Automatic.....Then select: Network operators...