[Sprint  Galaxy Note 4 Q&A, Help & Troubleshooting] Spark91:
Here's a step by step procedure to downgrade, make sure you backup your internal sd card contents because it requires a data/reset on 4.4. since lollipop encrypts internal storage.

Download

these 3

files.

USB (Driver) ver.1.5.45.0

( Latest as of this post ) from samsung.com/support, search for your device SM-N910P and choose your color, and select manuals and downloads

Odin v3.10.6, from rwilco12's website,

HERE

N910PVPU1ANK2 .TAR file, from ViperBoy's thread in generals forum

HERE

Save these files to your desktop within a folder called

Note4Downgrade

makes it easier to find.

Uninstall your previous drivers like old Samsung, Kies of any versions.

open the Odin zip file, drag and drop its contents into the

Note4Downgrade

folder.

Open the N910PVPU1ANK2 zip file, drag and drop the .tar file into the

Note4Downgrade

folder.

Install the latest Samsung drivers, no need to reboot your computer.

Open the

Odin3.10.6 executable file

, select PDA or AP slot and load in the

NK2.tar

file, it'll take awhile and the Odin program will freeze as the file that its loading is ~1.8 GB's.

In the mean time while this is being loaded, shutdown your

Note 4 Device

and go into download mode by pressing Volume Down, Home Button, and Power Button Simultaneously.

Hold it down until it starts up into an Android Logo Firmware screen, Next Press Volume Up to continue into the next dialogue.

Once the file is loaded into the Odin program, use the original Samsung USB cable and plug it into a

USB 2.0 port

( No, Not 3.0, Sometimes it can cause issues and errors, its do-able, but not recommended. )

Have the Odin Program detect

your device and Windows will install the device drivers. Once this is done, a word within a blue box will state this message up top.

[COM:##]

It does not matter on what the "##" is as long as that is reading a number, meaning Odin has recognized and detected your device.

Stop here and recheck your progress.

- Latest Samsung Drivers installed ( SM-N910P )

- Odin 3.10.6 with loaded N910PVPU1ANK2.tar inside the PDA or AP slot

- Device in download mode, plugged into a USB 2.0

- Odin with [COM:##] in a box.

Proceed to clicking the

"START"

button if you have all of your above progresses done.

This will take around 15-30 minutes of flashing the stock 4.4 firmware, this will not tick the KNOX switch if you haven't rooted your device already as this is stock firmware.

It'll auto reboot once it is done, First time boot up will take longer as it is loading the device for the "First Time".

Once you're done, and you're on the welcome screen of the device, power it off.

Now we need to do 2 sets of resets, data factory within recovery, and an internal SD card wipe through Backup and Reset menu within settings of the device.

Now go into the devices recovery by pressing these 3 buttons. Power UP, Home Button, and Power Button.

Hold it until you see blue text at the top left corner of your devices screen stating "REBOOTING RECOVERY. . . ."

Then you can let go.

LEGEND

- Volume buttons = up or down

- Power Button = Proceed into next dialogue

From here go into the wipe data/factory and reset the device.

Once done, do a cache wipe.

and lastly, reboot the device.

Once your device has been rebooted, skip all the welcome steps and go to home, pull down the notifications bar and select the setting button up top.

scroll down to storage and unmount your Ext SD Card and take it out ( If you have one! ), now back out and go within Back up and Reset under personalizations. checkbox wipe internal Card and factory data reset again.

Once its all done it'll reboot, now you're on the latest firmware of kitkat on the note 4.

I hope this will help you as well as others wanting to stay on kitkat for any reasons they have or if they run into issues on lollipop.

Your guide, simplified!

- Spark91