Root Samsung Galaxy J2 Core SM-J260F/G/M/Y Oreo 8.1 using Magisk (Android Go)

Samsung Galaxy J2 Core has Oreo 8.1 version that is based on Android Go. The Pro and con are in the J2 Core mobile are, It is Custom Skin Android Go. It comes with Samsung exclusive apps and also the Custom Skin. Only 1 GB of RAM, It may not perform better, But Due to the lite weight Android version, It can handle 2-3 Apps in parallel. After root, you will not receive regular patch updates from Samsung. So, If you are a regular user, I Don’t advise you to root your mobile. If you are a developer, and you know the purpose, you can root your mobile. If you think, Root can enhance the performance; you can’t squeeze a lot of performance in 1 GB RAM. Samsung already planned for Pie 9.0 version for this device. So, after the update, you can expect some performance Improvement.
Samsung Galaxy J2 Core Wood Background

Why should you Root Samsung Galaxy J2 Core?

You should have a strong reason for rooting. Samsung planning for 9.0 Pie and will further optimize your mobile. You have Enough 1 GB RAM to use daily apps without Lag for years. Yes, I know, you may think, 1 GB RAM is not enough in this modern Android world. But, Trust me Android Go is far better than other Custom Skin OS. You can use this device without lag for years until Samsung mess with some Bloatware. But beyond, this not go reasons, you are addicted to some root apps, or you are a frequent user of some Custom OS, you can proceed further. But if you want to root because everybody is doing, I advise you, don’t root If you didn’t have any experience. For regular users, It can become a Nightmare.

How to Root Samsung Galaxy J2 Core Oreo 8.1 (SM-J260F, SM-J260G, SM-J260M, SM-J260Y)

First of all, thanks to topjohnwu – this genius is one who discovered and maintaining Magisk. We also thank XDA Developer- Prove N, Who provided further details in this method.

Samsung Galaxy J2 Core International variants come with a flexible bootloader. This means that the smartphone can be easily rooted. Also, the device can accept to install TWRP recovery or any other custom recovery file/app alike. Don’t try with Snapdragon US Variants like Verizon devices. They come with locked Bootloader.

But In the below method, we are going to Root this device by using Magisk, not TWRP. You can install TWRP using the official App when it is released. TWRP recovery is a custom recovery file which must be installed on Samsung Galaxy devices because you can root them successfully. In this article, we explained the easiest method to follow and install TWRP recovery on Samsung Galaxy J2 Core. However, the tool required for rooting this device is the Magisk App.

With the help of TWRP Recovery, you can quickly flash the latest version of Magisk into your J2 Core to gain root access. Before sharing the tutorial, you may want to know that, with the TWRP recovery present on your device, you can easily install any custom ROM or firmware. Does it seem complicated? Relax, everything will be explained succinctly in bullets.

Things to check out for;

  • Check your device model number.

  • Install Latest Magisk Manager.
  • Make sure your device battery is charged above 50%

  • Backup your current files and data- Full Data Loss Process (save them on external storage).

  • You cannot use Samsung Pay, Secured folder, and some official apps from Samsung.
  • You can’t update your firmware, to get new firmware you have to follow the below steps with the latest firmware.
  • Read full tutorial before the process.

Pre-Requirement Steps

Preparing Patched Boot Image file

  • Download and install the Samsung USB driver to your computer system.

  • Also, download the ODIN software. Select above Oreo version in the ODIN list. Install ODIN on your PC.

  • You can use Phone Info to know your firmware version.
  • Download 7Zip-ZS and LZ4 Install both on your PC. Extract the files in downloaded firmware using 7Zip-ZS. You will get four files. Click on the AP File and Extract again. You will get some files along with the boot.img.lz4. Copy the boot.img.lz4 to LZ4 Installed folder. Convert lz4 file to .img file. After the convert, Copy boot.img file to your mobile.
  • Download Magisk Manager (Download Latest version) or Magisk canary and Install it on your mobile. Open Installed Magisk and Select Install in Magisk, It will ask For zip file and Patch Boot Image File. Select the Boot Image file.

Magisk Boot Image File

  • Navigate to your copied Boot Image File and patch the file.

Magisk Firmware Patch Process

  • Wait for the process to complete, In the end, you will get magisk patched .tar file. The .tar file will be in the same folder where you have the Stock firmware file.
  • Copy magisk_patched.tar file to your PC.

Unlock Bootloader

Enabling developer option

  • Enable USB Debugging Mode and OEM Unlock on your mobile. To do this; go to settings >>> about >>> Tap on the “Build Number” 7-10 times consistently to enable “Developer Options,” then go to the “Developer Options” and enable USB Debugging Mode and OEM Unlock. There is no complicated process in the Samsung Galaxy J2 Core.

Samsung Galaxy J2 Core Recovery Mode

  • Switch off your device. Enter into Recovery Mode-> Volume Up+ Volume Down+ Power Button. Your mobile will boot into recovery mode. Go to Wipe Data/ Factory Reset. Select “Yes.” After the process complete, Select Reboot to Bootloader.

Samsung Galaxy M40 Download Mode Warning Screen

 

  • The above process will wipe your User Data. It will show Download Warning screen, connect your mobile with PC using USB Cable.

Flash Patched Boot Image using ODIN

Samsung Galaxy J2 Core Download Mode

  • You already in Download Mode. If you accidentally entered into Setup, Switch off your Mobile. Enter into Download mode->Volume Down+ Volume Up Buttons and Connect Your Mobile To PC via USB Cable, After Samsung Logo Appear, Release all keys.
  • After entering into Download Mode, it will say Warning, Press Volume Up button to continue.
  • Launch Odin Application.

ODIN Added Message

  • It Will Show the message added.
  • If you did not get this message Repeat the above steps.

ODIN software screenshot

  • After Getting Added Message Select, AP/PDA Button then Browse for the magisk patched file selects it. Un-Tick the Auto-Reboot. You should only flash the patched image file.

Odin Auto Reboot

  • Press Start wait for the tasks to complete. After the process complete, Press Volume Down+ Power button to exit Download mode. When the screen goes off, Immediately Press Volume Up + Power buttons to boot into Recovery mode.
  • After entering into Stock recovery mode, Go to Wipe Data/Factory Reset and Select Yes to wipe data. It will erase your saved data in your device. Don’t Boot into OS, Read below Boot stages before booting.

Samsung Galaxy M40 Stock recovery

Boot into Rooted OS

  • Press and Hold Volume Up + Power buttons, release all the keys once the Bootloader warning appears. You have to set up your device like a new device. You can select the root status using Root Checker.
  • Stock Recovery Boot – Press and Hold Volume Up + Power buttons, release keys while you hold the Volume Up key.
  • You will see Magisk Manager in your App drawer. If you can’t find the app, you can install Magisk Manager in your mobile.

What More?

In my opinion, you don’t need rooting for your Samsung Galaxy J2 Core. If you thought, you could Improve Performance By root; With the Exynos 7570 Quad-Core processor, Android Go and 1 GB RAM, your device can perform well. If you don’t know how much RAM you need, You will never use this much RAM. You should not Boot into Normal OS Booting, by pressing the power button, after firmware flash. It will boot you to Non-Rooted environment. If you accidentally urged and boot frequently, Don’t panic, after setup everything, switch off your device and boot into Rooted OS using above mentioned keys. If you root your device, because of the battery drain issues, you can optimize your battery without root.

Source, (2)

Share This Post:

27 thoughts on “Root Samsung Galaxy J2 Core SM-J260F/G/M/Y Oreo 8.1 using Magisk (Android Go)

  1. I have tried the method mentioned above on my j2 core j260m and now am getting this message in red whenever i try to boot it up saying (only official released binaries are allowed to be flash)
    Please help me fix this problem

    • Your current Firmware and Patched firmware should be same. If you updated to the latest version, you should patch that firmware. If you don’t want root, flash the Stock firmware using ODIN.

  2. sir, please help me!
    I follow your instruction, but when I Open Installed Magisk and Select Install in Magisk.
    And the result is unable to repack boot image! and installation failed
    what is the error my sm-J260YDXS2ASI2 firmware!

    • Before Flashing Boot Image, Don’t Install the Magisk Flash File. You should install only the Magisk Manager and Patch the Image file. After flashing the pathed Image using ODIN, You can Install or Update Magisk.

  3. Bro, I figured out why its field now the second problem is field flash into Odin! Why?
    My device says its official firmware can flash why?
    What is the problem?
    I open my device and open the setting developer options there is no OEM

  4. Will this work for Samsung j260gu oreo 8.1.0?
    I tried all the above steps, firstly worked fine till ( Navigate to your copied Boot Image File and patch the file.), but I got magisk_patched.img not magisk_patched.tar. Finally got stuck at Odin, which says initializing.
    In Odin, only AP files will be served and leave blank for others?

      • Unsupported dev_type
        Added!!
        Odin engine v(ID:3.1301).
        magisk_patched.img
        FAIL!
        Complete(Write) operation failed.
        All threads completed. (succeed 0 / failed 1)

        Tried Odin 3.13.1 but still the same error.

        • Your patched boot img and your mobile firmware version should be the same. Can you mention your build number?

          • Use the following firmware. AP-J260GUDDU1ATB7, CSC Version J260GUODM1ATF1, Region-INS-India

          • firmware used from here
            INS/J260GUDDU1ATB7/J260GUODM1ATF1/
            Added!!
            Odin engine v(ID:3.1301).
            FAIL!
            Complete(Write) operation failed.
            All threads completed. (succeed 0 / failed 1)
            Still the same issue. Unsupported dev_type.

          • This is Samsung j260gu (2020) android oreo 8.1 go edition.
            I followed all steps.
            Odin shows added message -> select ap file and start ( failed with an error message ).

            Please let me know how to unlock the bootloader on this phone.

          • We already provided the steps. Without unlocking the bootloader, the method won’t work.

          • On the phone pressing volume up + power goes to recovery mode, in the bottom it says #failed to open recovery cause ( Permission denied )#
            # reboot recovery cause is unknown

            Any idea this is causing the fail

        • Flashing full firmware is happening successfully—tried a couple of times with the latest updated firmware without any issues.

          Instead of just boot.img file, I tried serving the AP file to magisk and tried flashing the new AP file to the device. It flashed successfully, and I got the root access. Checked with root checker app, it says the device is rooted. I don’t know whether it is the proper way to root the device. But now I could su and do root level actions.

          • Yes. It will work. We are glad that this method worked for you.
            In latest versions, we have to use both boot and Vbmeta. The method may vary depending on the models.

  5. I’m getting a boot loop. I tired the button combination, and it’s not going into recovery mode or hard rest mode; it’s just restarting.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.