Install Custom ROM on Samsung Galaxy M31? [Complete Guide]

Are you looking for a guide on how to install Custom ROM on Galaxy M31? If yes, in this article, I will show you a step-by-step procedure to flash Custom ROM on this device. The method that I have shown is straightforward, and you don’t need a PC/ Laptop. You can install any Custom ROM on Galaxy M31 without a PC.

I will highly recommend you to read the complete guide before proceeding to the steps part. The reason why I am saying this is, flashing files on your device is very risky. If you miss anything, then you will be ended up bricking your smartphone. So, please first read the guide, then apply the steps.

Samsung Galaxy M31

This process will wipe all your data, so take a full android backup if you haven’t done it already. I have also suggested to you some sources to download Custom ROM for Galaxy M31 without worrying about security. To flash ROM, we will use TWRP Recovery as it is very convenient and super easy to flash files and ROMs.

Let’s quickly jump into the steps.

About Samsung Galaxy M31

This Galaxy M31 is the newly launched device by Samsung. It has some great features, Here is some Key Specification of Samsung Galaxy M31:

  • This phone comes with a 6.4 Inches Full HD+ Super AMOLED Display.
  • Samsung Galaxy M31 is powered by Exynos 9611 which is an Octa-Core CPU.
  • It has 6 GB of RAM and 128 GB of Internal Storage.
  • Moving to the OS this device runs on One UI based on Android 10.0.
  • Camera – It has a Quad Rear-Facing Camera of 64 MP + 8 MP + 5 MP + 5 MP and the Front-Facing camera is 32 MP shooter.
  • Moving to the battery it has a Non-removable Li-Po 6000 mAh battery. This phone also supports Fast battery charging.
  • Sensors: It has the following Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass sensor.

// Source: GSMArena

What is Custom ROM?

Custom ROM is a modified version of the ROM. It comes with lots of cool features and customization that your original ROM does not have. If you install a custom ROM on your android device, that means you are replacing the pre-installed version of Android with a third-party ROM.

You can easily install Custom ROM on android with the help of Custom Recovery like TWRP Recovery. These modified ROMs have many advanced features that you cannot expect from the stock firmware installed on your device.

Where to Download Custom ROM?

You can Download Custom ROM for your device from Google. Just type your (Device Model Number + Custom ROM). Different ROM provides different feel and features. So, choose the one which suits your taste.

I highly recommend XDA Developers. It the most trusted place to download ROM. Any ROM will work as long it is made for your specific device.

Some Popular Custom ROMs

Here are some popular ROMs that you must try on your android device.

Advantages Of Installing Custom ROM

  • Upgrade your smartphone to the latest version of Android.
  • Clean Android Experience without Ads/Bloatware.
  • Experience New User Interface/ Custom Design.
  • You will get lots of customization options.
  • Get Root access by default (Administrative).
  • Unlock advanced features and functions.

Disadvantages Of Installing Custom ROM

  • Your device warranty will be void.
  • An unstable version of ROM will end up bricking your device.
  • If you missed any steps, your phone would be stuck in a boot loop.
  • You will not receive OTA updates from your phone manufacturer.
  • Absence of Google applications. (You need to flash GApps manually.)
Apply the shown steps at your own risk, is not responsible for bricking your device.

Pre Requirements

Steps to Install Custom ROM on Samsung Galaxy M31

As I already mentioned in the pre-requirements section, we need to have TWRP Recovery installed on Galaxy M31 to flash ROM files. So, I assume that you have installed TWRP on your device.

Also, you must take a full backup of your android before applying the steps. Backup is crucial; it can save your device if anything goes wrong during the steps.

  • First, reboot your device into TWRP Recovery mode.
    • Turn Off your phone.
    • Press and hold the Volume Up + Power button; as soon as you see the boot screen, release the Power button (do not release the volume up key until you boot into TWRP mode.)
  • Otherwise, you can also use the ADB command to boot into recovery mode. (Here is the guide to step ADB Fastboot Drivers.)
    • Connect your phone to PC/Laptop
    • Open the command prompt on your PC and type the following command.
adb reboot recovery
    • This will boot Galaxy M31 into recovery mode.

TWRP Recovery

  • Take Backup of your previous ROM.
    • To do that, Tap on Backup, → Keep it on a default setting & choose your Storage type → After that, Swipe To Backup.
    • Once the Backup process finishes.
    • Go back to the TWRP homepage.

TWRP Nandroid Backup

  • Select Wipe and Swipe to Factory Reset on the bottom of the screen.
  • Go back to TWRP main menu, tap on Install, and select the custom ROM .zip file.
  • After selecting the .zip file, do Swipe to Confirm Flash on the bottom of the screen to begin the custom ROM installation process.
  • This may take some time, so be patient.
  • Once your ROM is successfully flashed, you’ll see the Wipe cache/Dalvik option, select it and then do Swipe to wipe on the bottom of the screen.
  • After Cache & Dalvik wipe completes, go Back, and then select the Reboot System button.
  • Congrats! You have successfully flashed Custom ROM on Galaxy M31.
The first Boot after flashing the ROM can take a while. It will be Slow, Usually takes around 10-15 minutes. If it takes more time, then don’t Freak. Let it Complete it will Boot.

Wrapping Up –

In this comprehensive guide, we learned about Custom ROM, the trusted place to download the ROM file, and finally, the installation process. I have shown you the easiest way to Install Custom ROM on Samsung Galaxy M31. If you have any questions regarding this guide or face some problem, leave the comment below, and we will help you fix it up.

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