For those of you who have rooted your Samsung Galaxy S9 or S9 Plus using our root guide, you may have rooted with the SuperSU app as Magisk was not compatible with Galaxy S9 or S9 Plus. Well, there is a modified version of Magisk that you can use now which is 100% compatible. If you have not yet rooted your Samsung Galaxy S9 or S9 Plus, you can follow our existing root guide here but simply use the new modified Magisk instead of SuperSU and you will have Magisk root instead of SuperSU on your Galaxy S9 or S9 Plus.
If you already rooted your Galaxy S9 or S9 Plus using SuperSU, here’s how to easily switch to Magisk.
Download the modified Magisk here:
Download Modified Magisk v16.3 – Link
NOTE: DO NOT USE OFFICIAL VERISON OF MAGISK AS IT WILL BRICK YOUR S9/S9 PLUS!!! Use the modified Magisk provided here!!!
Either download the Magisk zip file straight to your phone(recommended) or download on your computer and copy over to your Galaxy S9/S9 Plus storage.
Step 1. Go into SuperSU app settings and tap on “Full unroot”.
Tap on “Continue”.
Tap on “Yes”.
Tap on “No” as recovery partition is separate on the Samsung Galaxy S9/S9 Plus and you don’t want to lose TWRP recovery by re-installing stock recovery anyways.
Step 2. Reboot into TWRP recovery. You can power off your Galaxy S9/S9 Plus, then hold down Volume Up, Bixby, and Power buttons for about 5 seconds to reboot into TWRP recovery.
IMPORTANT: If you used our root method, you should see the home menu like below. If you did not follow our root method and see an option to keep “Read Only”, that means you did not root correctly and your phone is still encrypted. If that is the case, you will have to wipe data and re-root your phone, follow our Galaxy S9/S9 Plus root guide here.
Once in TWRP, tap on “Install”.
Find the modified Magisk file called, “Magisk-v16.3-modifié-jesec.zip” that you downloaded earlier and select it.
Swipe to install the modified Magisk.
Once done, tap on “Reboot”.
Choose “Do Not Install”.
Step 3. Once rebooted, you should find Magisk Manager app, open it.
If you see a pop-up like below asking you to update or install Magisk Manager, DO NOT INSTALL! Since this is a modified version of Magisk, updating WILL BRICK YOUR PHONE. Also, this modified version of Magisk works flawless(passes SafetyNet Check and also Magisk Hide works 100%) so you probably will never need to update.
You should see “Installed version v16.3”.
You can tap on SafeNet Check to see if it passes, it should pass like below:
Magisk Hide should also work flawless now, go ahead and try hiding root from apps like Pokemon Go.
That’s it! Now you should be on Magisk root with your Galaxy S9 or S9 Plus! If you still on SuperSU, definitely try this method out and do let me know how it goes! It only took me about 5 minutes to convert to Magisk from SuperSU so it should be easy to do and you do not need a computer.
Credits – XDA <— Huge thanks to XDA for the modified SuperSU!
Join the HighOnAndroid VIP Fans List for free help from Max and discounts on Android accessories.