These are instructions on how to root Samsung Galaxy Grand 2 SM-G7102 using Pre-rooted firmware (android 4.3) through Odin on Windows Computer.
Requirements Your Samsung Galaxy Grand 2 SM-G7102 should have at least 30-40 percent of battery to perform the rooting process.
Root Samsung Galaxy Grand 2 SM-G7102 using Odin
Step 1: Download and Install Samsung USB Driver on your computer. If in case, Samsung USB Driver is already installed on the computer then SKIP this Step.
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Step 3: Now, Switch off your Phone.
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Step 4: Now, you have to enable Download Mode on your phone. To enable download mode Press and hold Volume Down Key, Home Button and Power key at same time for 5-8 seconds (you have to press and hold all three buttons at same time) until download mode is not active.
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Step 5: In the Download mode you will be able to see a Warning Yellow Triangle Sign. In this situation you have to press the Volume up key to continue.
Step 6: Now, Open Odin3 v3.09.exe (found in the extracted files, that you have downloaded in the Step#2) on your computer. Then connect your phone to the computer.
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Step 7: Once you have connected the phone to the computer, Odin will automatically recognize the device and show “Added” message at the lower-left panel.
Step 8: Once your device detected by Odin, click on the PDA button and select the SM-G7102.tar file (you have downloaded this file in step#2).
Step 9: Now, click on the Start button in Odin to begin the Flashing.
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Step 11: Once you see, the Pass message in Odin, you can disconnect your Device from the computer.
Step 12: Now, to make sure you have successfully rooted your Samsung Galaxy Grand 2 SM-G7102, open Applications Menu on your phone and Find SuperSU App. If this app exists on your phone, then it means you have successfully rooted your device. Congratulations.
Optional You can also verify the root status of your device by using the Root Checker App.
Notes
[*] Data loss process Your Phone Data like contacts, pictures, videos, music and etc will be deleted after flashing the above pre-rooted firmware.
[*] Samsung Stock Firmware If you are looking for the original firmware for your device, then head over to Download Samsung Stock Firmware page.
[*] Samsung USB Driver If you are looking for the original USB Driver for your device, then head over to Download Samsung USB Driver page.
[*] Credits Big thanks to Balliboxer (XDA Developer) for providing the pre-rooted ROM for Samsung Galaxy Grand 2 SM-G7102.