How to Root Samsung Galaxy A90 5G using Magisk (Android 11)

In this guide, we’ll be rooting Samsung Galaxy A90 5G without TWRP and Android 11. This is a great alternative to the traditional way of rooting, which typically requires you to have an unlocked bootloader, custom recovery, and root access on your device.

For gaining root access, we will use Magisk for more security as well as its ability to hide from SafetyNet while retaining many of the benefits that come with rooting, like ad-blocking apps or systemless Xposed modules.

The Samsung Galaxy A90 5G is a great device with plenty of features to keep you entertained. But if you want more than what the default Android OS offers, a few steps need to be taken first to root your phone and install TWRP on it.

Fortunately for you, this blog post will show you how! Doing so will give you access to all the software customizations and tweaks that only come with rooting your device.

So what are you waiting for? Let’s get started!

Steps to Root Samsung Galaxy A90 5G

Below I have shown step by step procedure to Root Samsung Galaxy A90. You have to follow every step carefully, or else you may face trouble booting up your device again.

Please read the complete guide before applying the steps. This will avoid confusion.

Things to remember

• Make sure to disable all security Locks on your Samsung Galaxy A90.
• Take Full Backup of your Android device.
• You need a PC to perform the Commands.
• Fully charge your phone.
• Samsung Galaxy A90 Original USB Cable.

Note: Rooting is a complex process, so if you miss any of the below steps will end up bricking your device. So, make sure to follow all the steps carefully as shown.

We are not responsible for any loss and damage to your device. Apply the below steps with your own risk.

Step 1: Unlock Bootloader on Samsung Galaxy A90

1. First, we need to enable Developer Options on Samsung Galaxy A90.
   • Go to “Settings” on your Samsung Galaxy A90.
   • Scroll down to the very bottom of the screen and select “About phone.”
   • Next, select “Software information.”
   • Tap on the “Build number” 5-6 times.
   • Enter your phone’s lock screen PIN/Password/Pattern if prompted.
   • You will now see the "Developer mode has been enabled!" toast message on the screen.
2. The next thing we need to enable is the OEM unlocking option on Samsung Galaxy A90.
   • Again head over to Settings → Developer options → toggle ON the OEM unlocking option.
   • Next select “Enable” when prompted to confirm.
3. Now we are ready to Unlock the Bootloader on your Samsung Galaxy A90.
   • First, power off your Samsung Galaxy A90 smartphone.
   • Connect your phone to the PC while holding the Volume Down + Power keys together until you see the bootloader screen.
   • Now press Volume Up key to enter “Device unlock mode.”
   • Again press Volume Up key to confirm Bootloader Unlocking on Samsung Galaxy A90.
   • Your device Bootloader is unlocked, and it should reboot automatically.

Downloads

In any steps, if the particular file is asked you to download, then you can come here and download it. We will update the links according to the latest build by developers.

• Download Magisk App (Latest Version) [Phone]
• Samsung USB Drivers (Optional) – Download [PC]
• SDK Platform Tools – Download [PC]
• Odin Flash Tool (Latest) – Download [PC]

Step 2: Download Stock Firmware for Samsung Galaxy A90

1. Download Latest Frija Tool.
2. Extract the zip file to your windows desktop.
3. Open the extracted folder and double-click on the frija.exe file to launch the tool.
4. We need two things, first your phone’s model number and second, and CSC/regional code.
   • You can get your phone model number by going to Settings → About phone.
   • To view the CSC code, you can download the “Phone Info SAM“ app.
5. Once you have the above information, enter the required data in the Frija tool.
6. Finally, click on the Download button.

Step 3: Extract AP Firmware file from Samsung Galaxy A90 Stock Firmware

1. Once you have downloaded the firmware package, extract it.
2. Now open the extracted folder, you will see firmware files in .tar.md5 format.
3. Connect Samsung Galaxy A90 device to your PC/Laptop.
4. Next, copy only the “AP firmware” file from your PC and paste it into your phone’s internal storage.

Step 4: Install Magisk App on Samsung Galaxy A90

1. Download and install Magisk App on your phone.
2. Open the Magisk app from the app drawer.
3. Tap on the “INSTALL” button.
4. Now here, tap on the “Select and Patch a File.”
5. Navigate to the internal storage and select the AP firmware file that you previously copied to the phone.
6. Once the file is selected, tap on “LET’S GO.”
7. Wait until Magisk patches the file.
8. The patched image file can be found in the “Downloads folder.”
9. Now connect your phone to the PC and copy the magisk_patched.tar file to the “firmware folder” on your PC.

Step 5: Boot your Samsung Galaxy A90 into Download Mode

1. First, power off your Samsung Galaxy A90 device.
2. Connect your smartphone to your PC while holding the Volume Down + Power keys together.
3. You will now see the Bootloader screen.
4. Now press Volume Up key to enter Download Mode.

Step 6: Flash Patched Boot.tar using Odin flash tool

1. First, extract the Odin zip file to your desktop.
2. Open the extracted folder and run Odin3 xxx.exe file.
3. Connect your Galaxy device to a PC/Laptop.
4. You will see ID:COM section light up blue. It means the PC successfully recognizes your phone.
5. Click on the following slot buttons and select the corresponding firmware files:
   • BL: Select the firmware file starting “BL”
   • AP: Select the Patched AP firmware file (magisk_patched.tar)
   • CP: Select the firmware file starting “CP”
   • CSC: Select the firmware file starting “HOME_CSC”
6. Once all firmware files are loaded to the Odin tool.
7. Make sure to untick the Auto Reboot option under the “Options” tab.
8. Once done, finally, click “Start” to begin the flashing process.
9. If the flashing is successful, you should see the PASS message on the Odin screen.
10. Once the process completes, press the Volume Down + Power keys to exit Download mode.
11. As soon as the screen goes black, press the Volume Up + Power keys to boot into Recovery mode.
12. Now once the Galaxy A51 boots into stock recovery mode, follow the below steps.
    • Go to Wipe data/factory reset. (Use Volume keys to navigate between the options and Power key to select an option.)
    • Select “Factory data reset.”
    • Once done, select “Reboot system now.”
13. The first boot will take some time.
14. That’s it! You have successfully rooted Samsung Galaxy A90 5G using Magisk.

You can also verify if your rooted Samsung Galaxy A90 passes SafetyNet by pressing the “Check SafetyNet” button in Magisk App.

After your device boots up, you will see Magisk App installed on your phone. This app will help you manage Root permissions, install Magisk Modules, Magisk Hide, and other features.

If you can’t see the app, simply download it from here.

Wrapping Up –

We’ve shown you how to root the Samsung Galaxy A90 5G without TWRP and Android 11. Once rooted, you will have access to a more customized experience on your phone by installing new applications that are not available in the Google Play Store.

This is done through an app called Magisk, which can be downloaded from here. If this guide was helpful or needed any further assistance, please leave us a comment below or reach out via email.