Root Samsung Galaxy M40 SM-M405F Android 10 using Magisk

When it is coming to deliver the best display in the market, No one can beat Samsung. Even if Xiaomi released notch displays early, Samsung Displays are great in hand and looks better with color corrections. Samsung Galaxy M40 comes with a punch-hole display and a mid-range processor. When it is released, it comes with Pie 9.0 version. Later, Samsung rolled out the Android 10 based One UI 2.0 upgrade. It can perform decently with most of the apps. But when you want to use root apps, you can root your Samsung Galaxy M40 Android 10 using the below method. Here we are using the Magisk alone method. So, You can’t install custom ROMs other than root apps.

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 M40 Android 10 version?

It would be best if you had a strong reason for rooting. Samsung Galaxy M40 already got One UI 2.0 based on Android 10 and is already optimized. You have More than Enough 4/6 GB RAM to use daily apps without lag for years. Yes, RAM is more than enough, even with 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 M40 Android 10 One UI 2.0 (SM-M405F)

Thanks to the developer Awsmanks for finding the root method and topjohnwu – this genius is the one who discovered and maintained Magisk. Samsung Galaxy M40 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. This article explained the easiest method to follow and install Magisk on Samsung Galaxy M40. 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 M40. 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 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 M40.

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

• 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 AP.tar 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.

• Download Samsung Galaxy M40 Android 10 Firmware and save it on your PC. Your Current OS version and Downloaded Version AP and CSC should be the Same.

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

• Download 7Zip-ZS and Install it on your PC. Extract the files in downloaded firmware using 7Zip-ZS. You will get four files (You will get Five files. CSC file is compatible with this process, So we drop Home CSC files).

• Copy the AP 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 AP file.

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

• 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.

• 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. Convert only AP file. You will get the AP.tar file.

3. Flash Patched AP.tar along with other firmware files using ODIN

• Due to Samsung’s new security restrictions, we can’t flash the AP file with Stock Boot on your mobile. So, we have to flash a patched AP 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+ Power 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 the Volume Up button to continue.

• Launch Odin Application.

• It Will Show the message added.

• If you did not get this message, Repeat the above steps.

• After Getting Added Message Select, AP/PDA Button, then Browse for the patched Magisk AP.tar file, select it. Along with this file, you should choose and flash the other three non-patched firmware files. Un-Tick the Auto-Reboot.

• Press Start wait for the tasks to complete. After the process complete, Press the Volume Down+ Power button to exit Download mode. When the screen goes off, Immediately Press the 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 on your device. Don’t Boot into OS. Read below Boot stages before booting.

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 check 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.

Selva Ganesh

Selva Ganesh is the Chief Editor of this Blog. He is a Computer Science Engineer, An experienced Android Developer, Professional Blogger with 8+ years in the field. He completed courses about Google News Initiative. He runs Android Infotech which offers Problem Solving Articles around the globe.