How to Unlock Bootloader on Samsung Galaxy M31

Samsung has launched another budget segment smartphone in India known as Galaxy M31. The device will have some of the key features like 64MP primary quad rear camera setup, a whopping 6,000mAh battery, FHD+ Super AMOLED display, etc. It also sports a 20:9 aspect ratio which seems quite nice and the One UI 2.0 (Android 10) skin will also deliver a top-notch performance. Today we will guide you on how to unlock Bootloader on Samsung Galaxy M31 if you want to install any custom Recovery or want to root your device. Then the first step in doing so is unlocking the bootloader of your device. So today, in this article, we will guide you through the process of unlocking the bootloader on Samsung Galaxy M31.

Samsung Galaxy M31 is the latest smartphone by Samsung. With decent specs and unique design, Galaxy M31 is the center of attraction of major developers and Android enthusiasts. Being an Android enthusiast or a developer, you might want to unlock the bootloader of your Samsung Galaxy M31. After unlocking the bootloader of your device, you can install a custom recovery, root your device, install custom ROM and much more.

What is Bootloader?

A Bootloader is a code that runs when we turn on our device. This code initializes some hardware and then loads the kernel and ramdisk, and gets the boot process going. So this process is known as bootloader. The same concept applies to all the technical stuff such as laptops, PC, Smartphones, and any such device. Every Android OEM manufacturers lock the bootloader even though it is an Open Source. So if you want to try any CUSTOM ROM, it is impossible to load the CUSTOM ROM without the Unlock Bootloader.

Device Specification

Before heading to the process of unlocking bootloader of Galaxy M31, let’s take a quick look at the device specification:

Samsung Galaxy M31 comes with a 6.4-inches Full-HD+ Super AMOLED Infinity-U display that has a waterdrop notch for the selfie camera. It is powered by an octa-core Exynos 9611 SoC, coupled with Mali-G72 MP3 GPU, 6GB/8GB RAM variants, and 64GB/128GB of onboard storage variants as well. It also has a dedicated MicroSD card slot for storage expansion.

The quad rear camera setup features a 64MP primary (wide, f/2.0) lens + an 8MP secondary (ultrawide, f/2.2) lens + a 5MP (macro, f/2.4) + a 5MP (depth, f/2.2) lens along with an LED flash, PDAF, HDR, Panorama, etc. On the front side, the device sport a 16MP selfie camera (wide, f/2.0) lens with HDR, Portrait mode, AI Face Unlock, etc.

The device features a 3.5mm headphone jack, dual-band Wi-Fi 802.11 a/b/g/n/ac, Bluetooth 5.0, GPS, A-GPS, GLONASS, BDS, FM Radio, Type-C port, etc. As mentioned earlier, it packs a 6,000mAh battery with 15W fast charging support. It also sports a rear-mounted fingerprint sensor, an accelerometer, gyroscope, proximity, compass sensor, etc.

Steps to Unlock Bootloader on Samsung Galaxy M31

1. First of all, Enable Developer Mode on the Galaxy M31  
2. Launch the Settings application
3. Scroll down and tap on the Developer Options option
4. Toggle the OEM Unlock option on 
5. Confirm by tapping the enable option. 
6. Power off your device. Press Bixby + Volume Down and plug in your device to a PC to boot into download mode
7. Long press volume up to unlock the bootloader. This will wipe your data and automatically reboot
   

   Note:

   Unlocking bootloader will wipe all your data from your device. Make sure to take a complete backup of your phone before doing the next step.https://www.youtube.com/watch?v=3wgjUayOMMo
   
   
   
8. Just when you think the bootloader is unlocked, surprise surprise, it is actually not! Samsung introduced inVaultKeeper the system, meaning the bootloader will reject any unofficial partitions before explicitlyVaultKeeper allows it.
   • Go through the initial setup. Skip through all the steps since data will be wiped again later when we are installing Magisk. Connect the device to the internet in the setup, though!
   • Enable developer options, and confirm that the OEM unlocking option exists and grayed out! The VaultKeeper service will unleash the bootloader after it proves that the user has the OEM unlocking option enabled. This step is to make sure the service gets the correct info, and also double-check that our device is in a correct state
   • Your bootloader now accepts unofficial images in download mode, a.k.a actual bootloader unlocked :D. Follow on to read the rest of this guide.
9. That’s it! You have unlocked the bootloader on your Galaxy M31.

So, guys, this is how you can unlock the bootloader on your Samsung Galaxy M31. After unlocking the bootloader, you can flash custom ROM, install TWRP, or any other task you want. If you are facing difficulty in any step, then let us know via the comment box below. We will be happy to help you out.