How to Unroot the Samsung Galaxy J2 (2015)

If you’ve had enough fun with root on your Samsung Galaxy J2 and you now wish to get back to the stock for whatever reason, you can use the following guide that teaches how to unroot the Samsung Galaxy J2 by flashing the stock firmware.

When a stock firmware is flashed on an Android phone, it removes root-access, custom recovery, customized system files, and everything else that was added when rooting your phone. It’ll get your phone back to the stock condition that has nothing custom, same way it was out of the box.

Here’s how.

Before You Begin

1. You should’ve rooted your device using our how to root the Samsung Galaxy J2 procedure.
2. You must have a Windows based PC to do this procedure as the tool that you’re going to use in the following steps is Windows only.
3. You should have ADB USB drivers installed on your Windows computer. Install the drivers if they aren’t already.
4. This should erase all the data stored on your device. So, please backup everything that you don’t want to lose.
5. This should get your device back to the stock firmware.
6. You should only do this on the models of the device that have a stock firmware available for them. You can find out your model number in Menu > Settings > About phone on your device.

How to Unroot the Samsung Galaxy J2

To unroot the device, you’ll flash the stock firmware using Odin and it’ll get your device back to the stock. Here’s how it’s done:

Downloading Required Files

1. Download Odin and save it to your desktop.
   Odin
2. Download the Stock Firmware that is for your model and save it to your desktop.
   Stock Firmware for SM-J200G
   Stock Firmware for SM-J200F
   Stock Firmware for SM-J200GU
   Stock Firmware for SM-J200BT
   Stock Firmware for SM-J200H
   Stock Firmware for SM-J200M
   Stock Firmware for SM-J200Y

Unrooting the Samsung Galaxy J2 Using Odin and Stock Firmware

1. Unzip files from both Odin and Stock Firmware by right-clicking on each of them and selecting Extract here.
2. Double-click on Odin executable and the tool should launch.
3. When Odin launches, click on the button that says PDA and navigate to your desktop and find and select stock firmware to be flashed on your device.
4. Uncheck the Repartition option if it’s already checkmarked in the Odin.
5. You can checkmark the options that say Auto Reboot and F. Reset Time.
6. Turn off your device.
7. Turn your device back on in download mode by holding down Volume DOWN, Home, and Power buttons together for a few seconds.
8. Hit Volume UP when prompted and you should be in download mode.
9. Plug in your device to your PC using a USB cable.
10. Click on Start in the Odin and it’ll start flashing stock firmware on your device.
11. It’ll take some good time to do that as you’re flashing a whole firmware on your device.
12. When it’s done flashing firmware, your device should automatically reboot.

And your Samsung Galaxy J2 is now unrooted and is running the pure stock firmware by Sammy.