Samsung Galaxy Note 2, Galaxy S3 And Other Exynos 4 Devices Encounter Major Security Flaw Offering Easy Root, Malware Possibilities
Thanks to XDA-Developers’ forum member alephzain, a major vulnerability has been discovered that affects a number of popular Samsung devices using Exynos 4 SoC and Samsung Kernel sources. Reuters

Samsung recently started rolling out the Android 4.1.2 Jelly Bean update (build number XXDLK7) for the 4G LTE version of the Galaxy Note 2 with the model number GT-N7105. Although the firmware update was first available with a Vodafone South Africa branding, it is now reported to work in a number of countries including the UK.

It should be noted that Samsung Galaxy Note 2 LTE N7105 is the version that supports LTE on 800, 1800 and 2600 MHz bands. This should not be confused with the international 3G/HSPA-only version.

Now, if you are an owner of the said Galaxy Note 2 version and have already updated your device with Android 4.1.2 Jelly Bean (XXDLK7), the next thing you would most likely to do is to root the device.

Rooting your device is required if you want to install apps that need root permission or want to install a hack or ROM.

Below are the steps to root Galaxy Note 2 4G N7105 running on N7105XXDLK7 Android 4.1.2 Jelly Bean firmware. But before going ahead, you must be aware of certain crucial aspects:

- The process is meant only for Galaxy Note 2 LTE N7105. Therefore, the users are advised to check their device’s model number in: Settings > About phone.

- Make sure the device has at least 80 percent of battery power.

- Back-up all your important data.

- The device should be a factory unlocked one.

- Download USB drivers for Galaxy Note 2 LTE and enable the USB debugging mode.

- Once the device is rooted, it will void the warranty. But you can reclaim that by applying for official firmware update.

The users must note that IBTimes will not be held responsible for anything that goes wrong. They should proceed at their own risk.


Step 1: Download CF-Auto-Root package for Galaxy Note 2 LTE to the computer and extract the zip file.

Step 2: Download Odin3 .07 and extract the zip file.

Step 3: Turn off the phone and place it into Download Mode by pressing Volume Down, Home and Power buttons together. After you see a warning message on the screen, press the Volume Up button to Enter into Download Mode.

Step 4: Run Odin on your computer.

Step 5: Connect the device to the computer using a USB cable. A message will appear saying “Added” under the Odin's message box. In addition, if the device is connected properly, you will see COM port with a number in Yellow.

Step 6: Now, click the PDA tab in Odin and select CF-Auto-Root-tolte-gtn7105.tar.md5 file.

Step 7: Click on the Start button in Odin to begin the installation.

Step 8: After the installation is done, you will get to see a Pass message with green background at the top of Odin. Your device will now reboot automatically.

[Source: Android Jinn]

Once you see the Samsung logo on the screen, you can safely unplug the USB cable from the phone. After the reboot is done, you would have root access on your Samsung Galaxy Note 2 LTE N7105 running Android 4.2.1.

Click here to check if the device is successfully rooted.

Must Read: How To Carrier Unlock Samsung Galaxy Note 2 Permanently [Tutorial]