N900AUCUCNC2 AT&T Galaxy Note 3 (SM-N900A) 4.4.2 Update Stock ROM

Here goes AT&T Galaxy Note 3 (SM-N900A) Android 4.4.2  KitKat firmware build N900AUCUCNC2 stock ROM. The N900AUCUCNC2 stock can be manually flashed for those who may wants to completely unroot and return back their devices back to a 100% stock.

In addition, this N900AUCUCNC2 stock firmware is It is also been useful for fixing soft-bricks, such as bootloops and random reboots – your SGS 5 is stuck at Samsung logo but wasn’t fixed from a simple factory data reset.  So these files will save your device and bring it back to life if you’ve missed-up from modding and rooting.

Technical Details of N900AUCUCNC2

Device: Samsung Galaxy Note 3
Model number: Samsung SM-N900A
Android version: 4.4.2 (KitKat OS)
Baseband: N900AUCUCNC2
Kernel version: 3.4.0-722276
Build number: KOT49H.N900AUCUCNC2
Other info:
Date released: 03/27/2014

The N900AUCUCNC2 stock ROM had have been  pulled during the released of the official OTA update that was temporarily saved in the phone’s memory as (N900AUCUCNC2.cfg) and we personally then repacked it to (N900AUCUCNC2.tar.md5) as a Odin flashable file.  The Odin flashable stock firmware can only be use by many advanced users and modders. And if you have come to this page looking for the N900AUCUCNC2 stock ROM then you are an advanced users as well.

How to Manually Install-back the N900AUCUCNC2 stock ROM on Galaxy Note 3 SM-N900A

Disclaimer: This method are used by Android developers and advanced users only. If ever this is your first time heard about this procedure, please make a careful research first before proceeding. We shall not be held any responsibility if anything happens to your device from using this guide. Proceed at your own risk!

Warning: This stock ROM is only compatible for Galaxy Note 3  with SM-N900A (AT&T) specific model only. Do not ever try to use this firmware on other Samsung Galaxy Note 3 variants.


Q: Will I lose root once installed the N900AUCUCNC2 stock ROM?
A: Yes, this will restore your device into the official firmware.
Q: Can I install root on N900AUCUCNC2 KitKat version?
A: Yes, this firmware build can be rooted.  Also be aware about the new KNOX security platform hidden inside the system that completely voids the warranty of your device once gets tripped by means of rooting or installing any custom recovery. This sets “KNOX warranty Void: 0×1 from 0×0″ (You can see this when you set your device in download mode). This cannot be reverse back.

Download the original N900AUCUCNC2 Stock ROM/Firmware:

Important Note: DO NOT INSTALL the N900AUCUCNC2  stock ROM for downgrading purposes on-top of any latest updates, including the Android Lollipop updates that might arrive very soon. Whilst at-least you knew exactly what you are doing then it’s up to you.

Single N900AUCUCNC2 stock firmware packaged
Full single – N900AUCUCNC2_N900AATTCNC2_HOME.tar.md5 (link)

Individual N900AUCUCNC2 stock firmware consists of AP, Boot, CSC, and AP packages.
BL_N900AUCUCNC2_722276_REV03_user_low_ship (link)
AP_N900AUCUCNC2_722276_REV03_user_low_ship (link)
CP_N900AUCUCNC2_722276_REV03_user_low_ship (link)
CSC_ATT_N900AATTCNC2_722276_REV03_user_low_ship (link)


Before you proceed prepare these necessary things as follows so you will not screw-up your phone:

• Create a back-up all your personal data, like: Contacts, Messages, Applications, Pictures and Videos, so that you will not lost it just in-case something might went wrong after the update.
• Make sure that your Galaxy Note 3 battery is fully charged to ensure stability and to get rid pf power failure issues while updating.
• Close all softwares, such as KIES suite, Antivirus, firewalls, to prevent the possible conflict.
• Prepare a personal computer or laptop with Windows OS.
• Enable USB debugging mode if you are having issues connecting your device to the computer try to enable the this option. In your Samsung Galaxy Note 3, go to Settings>> About device>> then look for the firmware “Build number” and then tap that build number for around 7-times. Then hit back to Settings>> Developer option>> Enable USB.
• TURN OFF the Reactivation Lock – Got Settings>>Security>>Reactivation Lock and then uncheck the Turn Reactivation lock on. This is only needed if you already turned-it-ON, from which you cannot modify the system when it’s turned-ON.

Galaxy Note 3 reactivation lock

The Procedures:

Odin downloader – look for Odin3_v3.09 here
USB Driver – drivers are here (only needed if you haven’t installed Kies)

1) Download the firmware packages and ensure that you have installed the USB drivers first.
2) Run Odin3_v3.09 flasher program. DO NOT touch the default options such as check-marked boxes “Auto-Reboot” and “F-Reset Time” while leaving the “Re-Partition” unchecked.

3) Reboot the Galaxy Note 3 into Download Mode: Turn it Off first. Then press and hold the Volume Down, HOME and Power ON button at the same time). You will then presented into a “Warning Message” screen, just press the Volume Up to continue. Once the Android robot and a “Downloading” message appears.

4) Connect the USB data cable from Phone to PC. The ID:COM box will turn to a bluish color when the phone is properly connected and recognized with Odin.

5) Load the stock firmware on each designated slots.

For single-packed stock firmware only:  Just click on the AP button then select and load the single NC2 stock firmware packed.


Single N900AUCUCNC2 firmware Odin Download mode

For loading the four individual packages: Select carefully each specific files to each designated slots in Odin such as BL, AP, CP and CSC files as it will fail if you choose the wrong ones while flashing.

BL button = ‘BL_N900AUCUCNC2_722276_REV03_user_low_ship_MULTI_CERT.tar.md5’
AP button = ‘AP_N900AUCUCNC2_722276_REV03_user_low_ship_MULTI_CERT.tar.md5’
CP button = ‘CP_N900AUCUCNC2_722276_REV03_user_low_ship_MULTI_CERT.tar.md5’
CSC button = ‘CSC_ATT_N900AATTCNC2_722276_REV03_user_low_ship_MULTI_CERT.tar.md5’

Full N900AUCUCNC2 firmware Odin Download mode

6) Lastly, tick the ‘START’ button when all is set and ready to begin flashing.

Do not disconnect nor do anything when the phone is already in flash mode. You’ll messed up the phone if you accidentally interfere the installation. Wait until a word “PASS” appears on the left side of the Odin screen, it is an indication that the installation successfully completes. (If you get failed errors, check the USB connection condition, repeat the whole process)
Wait until the phone completely reboots, then unplug it from PC.

Do full wipe data factory reset again just right after flashing. This is only optional just in-case you’ll want to get rid of lag issues after flashing. Press and hold Volume Up+ Home+Power button, then select the Wipe Data/Factory Reset, to gain a fresh firmware installed.