Root Samsung Galaxy M31 SM-M315F Android 10 using Magisk

Since Samsung has huge mobile series varieties, it is hard to pick up the great working line. But based on the sales and user feedback, they always release a successor of the variant every year. Samsung picked mid-range users again with its “M” series. In this lineup, Samsung Galaxy M31 is one of the budget mid-range mobiles. Moreover, it is an upgraded version of M30 and M30s. It comes with an Android 10 version. When you are a regular root apps user, You can root your Samsung Galaxy M31 Android 10 version using the below method. Since it didn’t use a custom recovery, You can’t install custom ROMs. But the below method is enough to use most of the root required apps.
Samsung Galaxy M31 Multi Tasking

Compare with standard other root methods, this method has additional steps. So, You should care a little bit when you do the process. After root, you will lose official updates. You have to update your mobile manually. So, Before proceeding with the process, you should know why you need to do it. If you are a regular user, you can try some alternatives for your purpose that don’t require root. When you are a regular root apps user and developer, you can follow the below guide to achieve root on your mobile.

Should you need to Root your Samsung Galaxy M31 Android 10 version?

It would be best if you had a strong reason for rooting. Samsung Galaxy M31 already comes with Android 10 and is already optimized. You have More than Enough 6/8 GB RAM to use daily apps without lag for years. Yes, I Know, RAM maybe looks like not enough because of the Samsung Heavily customized OS. But, Trust me, One UI 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 M31 SM-M315F Android 10 One UI 2.5

First of all, thanks to the developer- mvini_ab for the Root method and topjohnwu – this genius is the one who discovered and maintaining Magisk. Samsung Galaxy M31 International variants come with a flexible bootloader. It means that the smartphone can be easily rooted. The device can also accept installing TWRP recovery or any other custom recovery file/app. Don’t try with Snapdragon US Variants like Verizon devices. They come with a locked Bootloader.

But In the below method, we are going to Root this device by using Magisk. You can install Official TWRP using the official app when it is released. TWRP recovery is a custom recovery file that must be installed on your devices because you can root them successfully. In this article, we explained the easiest method to follow and install Magisk on Samsung Galaxy M31. However, the tool required for rooting this device is the Magisk App.

You can flash TWRP once it is available. With the help of TWRP Recovery, you can quickly flash the Custom ROMs into your Samsung Galaxy M31. Before sharing the tutorial, you may want to know that you can easily install any root apps with the Magisk present on your device. Does it seem complicated? Relax, everything will be explained briefly in bullets.

Things to check out for;

  • Check your device model number.

  • You should back up your current files and data- Full Data Loss Process (save them on external storage).
  • Install Latest Magisk Manager.
  • Make sure your device battery is above 50%

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

1. Unlock Bootloader

Enable Developer Options and OEM Unlock

  • 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 M31.

Samsung Galaxy M31s Download Mode Keys

  • Switch off your device. Enter into Download Mode-> Volume Down and Connect your mobile with PC using USB Cable. When the Download mode warning screen Appears, Press the Volume Up button to unlock Bootloader.

Samsung Galaxy Bootloader Warning Screen

  • The above process will wipe your user data. After setup your device, Please recheck the OEM Unlock in the settings. Sometimes It Will Lock Again.

2. Preparing Patched Boot Image file

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

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

  • You can use Phone Info to know your firmware version.

Samsung AP Extracted files

  • Download 7Zip-ZS, LZ4, and 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 data along with the boot.img.lz4.

Convert lz4 file to img

  • Copy the boot.img.lz4 and  vmbeta.img.lz4 to LZ4 Installed folder. Convert the lz4 file to a .img file by dragging the .img file to the lz4 application file. You have to drag the file to that application. The script will automatically convert the file to .img format. After the convert, Copy the 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 a 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 a magisk patched .tar file. The .tar file will be in the same folder where you have the Stock firmware file. If you didn’t get the .tar and you got the .img file. No problem. Copy this file to your PC. We can convert the data there.

Convert magisk patched tar file

  • When you get the .img file, Open the installed 7zip app. Navigate the magisk patched img file and select Add, Choose .tar format and choose ok. Now we got ODIN flashable boot.tar file. In the .tar, you can find boot.img.

3. Flash Patched Boot.tar using ODIN

  • Due to Samsung’s new security restrictions, we can’t flash TWRP with Stock Boot on your mobile. So, we have to flash a patched boot using ODIN.
  • Unlock your screen lock. There should be no fingerprint, PIN Lock, Wipe. Set No lock in the settings.
  • 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.

Samsung J4 Plus Warning screen

  • After entering into Download Mode, it will say Warning; press the 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 patched boot.tar file, select it. We have to flash only the magisk patched boot image file. Un-Tick the Auto-Reboot.

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+ Volume Down + Power buttons to boot into Recovery mode.

Samsung Galaxy M31 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 M10 Recovery Mode Warning Screen

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 the 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 on your mobile.

What More?

In my opinion, you don’t need to root your Samsung Galaxy M31 Android 10 version. If you thought you could Improve Performance By root; With the Exynos 9611 Octa-Core processor and 6/8 GB RAM, your device can perform well. If you don’t know how much RAM you need, You will never use this much RAM. It would help if you did not Boot into Normal OS Booting by pressing the power button after firmware flash. It will boot you to a Non-Rooted environment.

When 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. Beyond this, if your purpose is to Disable Bloatware apps, you can do that without using this method. When you have any suggestions or doubts, comment below.

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