[Android Q&A, Help & Troubleshooting] jays note 2:
OK. I don't know about those steps, as I took a different route to get to the Nseven rom. Make sure you have the ADB/Odin 3.09 or 3.10 and Samsung drivers already installed on your PC. You might want to get/DL Kingroot.apk aswell.

Step 1.

Download the 5.1.1 BPA1 full firmware, this should be a all in one file. None of these separate files eg.BL AP CSC..

"I downloaded this from Sammobile"

Step 2.

Open Odin and add the firmware file to the AP tab by clicking on it and navigating to where file is located. This takes a little while to show as Odin checks the file before adding it( Make sure Auto reboot and F.Reset Time are ticked)

Step 3.

Make sure you have unlocked "DEVELOPER MODE" and "USB DEBUGGING" is ticked before powering down your phone and putting it into download mode by holding the 3 keys Vol Down,Power,Home then Vol Up to continue, once your in DL mode connect to PC. There may be a little pause as your PC may install further driver files before Odin recognizes you phone and adds it under "ID;COM". Once your phone has been added into the ID:COM you can go ahead and press START. Allow Odin to do its stuff and once your phone reboots you can unplug from the PC.

Now you should be on the 5.1.1 BPA1 firmware.

Allow your phone to boot completely, you can skip the whole setup process but you'll need to be connected to WiFi for the next process.

GAINING TEMP ROOT.

Step 1.

Transfer the "KINGROOT.APK" to your phone and install but don't open it yet.

Step 2.

Unlock Developer Mode again and tick USB DEBUGGING. * This is necessary for ADB.

Step 3.

Open Kingroot and allow it to check for root this can take awhile just be patient. Once it throws up the results it'll ask if you want to try "TRY TO ROOT". click on the tab and watch the process. " Your phone will reboot a few times during the process" I just reopened Kingroot each time it did until the process was done. ******You'll have to repeat this process again***** as your Phone reboots while your pushing the command file through ADB. Losing root in the process.

Now that you've repeated the process again and you have gained TEMP root. You can confirm this with "ROOT Checker" you can reconnect your phone to your PC.

Step 4.

Make sure you have the "Samsung_unlock_n4-fix script file in your FASTBOOT folder located in the extracted files of ADB.

Now open a ADB command window *Open this in the same folder where you exacted ADB. to do this hold Shift and click Right mouse button on any clear area of the ADB folder and scroll down to "Open command window here"

Step 5.

Within the command window type "CD Fastboot"

To confirm your device is added type" ADB devices"

You should see a random number listed under "List of devices"

If you do your set to go.

For this next step its best you have the Notepad open with these commands to make it easier. ****COPY & PASTE*****

The commands are.....* without the numbers in front of it

#1. adb push samsung_unlock_n4-fix

#2. adb shell

#3. su

#4. cd/data/tmp/

#5. chmod 777 samsung_unlock_n4-fix

#6. chown root. root samsung_unlock_n4-fix

#7. . / samsung_unlock_n4-fix

OK time to push the file. Start with the 1st command and press enter. Then the 2nd and press enter. Then the 3rd and press enter. Then the 4th, then the 5th and 6th then the 7th.

Now once you've enter the 7th command you'll be presented with a warning just type YES ****USING THE SHIFT KEY WHILE DO SO****** and wait while the process completes. Your phone will reboot to confirm the process is complete.

******NOTE*******

Your phone will reboot but reboot into a Bootloop, don't worry just pull the battery and memory card. Replace the battery but not the memory card. Reboot into DL mode to confirm that you are now in/a Developer Mode.

**********CONGRATULATIONS YOU JUST UNLOCKED THE BOOTLOADER********

*****NOW HERE COMES THE STINK PART*******

You'll need to flash the N910VVRU2BPA1_N910VVRU2CPD1 full firmware with Odin this will update the Bootloader to CPD1 required for Nseven to boot. But in doing so will LOCK the bootloader again. ARRRGGGGG!!!!!!

So.....

Step 1.

Put your newly unlocked phone into DL mode again and reconnect to Odin.

Step 2.

Place the BPA1/CPD1 firmware into the AP slot and press start

Disconnect when the phone reboots. Allow it to fully boot/skip the setup process. ******Note you will need Mobile Data as WiFi is non usable due to the updated firmware.

Step 3.

Reformat your memory card using your PC and place back into your phone, reconnect your phone to PC and transfer ROOTKING.APK over again.

Step 4.

Turn on Mobile data. Install KINGROOT and open, follow the same process you did to unlock 5.1.1. This time it may take a little longer and there's a chance Kingroot will fail to root just try again.

*It did it to me.

*There's a chance your phone will reboot when it comes to pushing the command file, unfortunately that's just the way it is. Just repeat the Kingroot process again.

Step 5.

Now that you've gained TEMP ROOT again, You'll need to run ADB and push the scripts again. Just follow the same process you did for 5.1.1 BPA1.

Even down to pulling the Batt & Memory card.

Step 6.

Now that the bootloader is unlocked, place phone into DL mode and reconnect to PC and Odin. Now again AP slot navigate to where you placed your Custom recovery.

****NOTE. I used TWRP 2.8.7.0 trltevzv.img as TWRP 3.0.2.0 Didn't work for me. And flash disconnecting when phone reboots.

********Congrats you now have a UNLOCKED BOOTLOADER and a CUSTOM RECOVERY on 5.1.1 with a CPD1 bootloader.

Time to flash Nseven. *don't forget to reformat your memory card.

To flash Nseven, just copy over the Nseven zip file to your memory card and flash using TWRP.......ENJOY.

* Note. I didn't flash anything else apart from the CPL1 Nseven

Even though I had all the files DL. Just follow the Nseven forum if you experience any problems.

Hope this helps getting you into/onto Nseven.