Unbrick hard bricked AT&T Galaxy Note 3 (SM-900A)

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This post here is to unbrick hard bricked AT&T Galaxy Note 3 (SM-900A) only. Please don’t try this on any other AT&T Galaxy Note 3 models. Also this post is for only hard brick device only (see the difference).

We are not responsible for any data loss or other problems that occur by using this tutorial. Flashing ROM deletes internal memory. Use at your own risk.

Requirements :-
  1. Bricked Galaxy Note 3 (SM-900A)
  2. microSD card  and card reader (all data will be erased from this sdcard)
  3. Linux / OS X ( can use vmware or live running OS)
  4. Unbrick Image (Links provided below)
  5. Stock Odin Files for SM-900A (Links provided below)

Procedure to unbrick hard bricked AT&T Galaxy Note 3 (SM-900A) procedure :-

  1. Boot into Linux / OS X  and open terminal.
  2. Insert your microSD card into the reader and plug into your  your computer
  3. Run on terminal
    dmesg | tail

    You will get output that will show that SDCard is mounted via /sdX

  4. sudo dd if=/<path_to_debrick.img> of=/dev/sdX

    X is taken from the step above. Ignore the partitions since they will be removed automatically.

  5. sudo fdisk -l /dev/sdX
    It should show approximately 29 partitions . Again X is from above.
  6. Remove the battery and SIM from your device and insert the SDCard and insert the battery again.
  7. Press the power button, it should boot now.
  8. Reboot the device into Download mode using Volume Down + Home + Power
  9. Now this method to install the ROM onto the internal memory of the device.
Downloads :-
  1. Unbrick Image
  2. Stock Odin Files for SM-900A
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Rohan Kandwal

I am an Android Enthusiast and love to learn new techniques, tips and tricks. I also love to help other who face any difficulty in using technical stuff.. Google+

  • khalid sharif

    Hello I recently bricked my att galaxy note 3 and tried everything… Please help

  • Gustavo La Potencia

    My Note 3 Ms-N900A 4.4.2 is Unbrick, not have linux.

  • Gustavo La Potencia

    The steps do not work, I have Windows 8.1 on my laptop

    • RohanKandwal

      If you don’t have Linux on your laptop that doesn’t mean that it doesn’t work. Linux is free and available on the internet, you can even use a live CD or USB version.

  • J. Hooks

    Just recently hard bricked my Note 3. Trying to fix it! Got all the requirements to do these steps but I run into a problem when I enter dmesg | tail into terminal. I am receiving this response:

    Unable to obtain kernel buffer: Operation not permitted

    usage: sudo dmesg

    Please help!