Download Android90 Root Direct
Turn on and USB Debugging in Developer Options.
Extract the boot.img (or init_boot.img ) file from the firmware package.
Copy the resulting magisk_patched.img back to your computer. Download android90 root
What is your ? (e.g., Samsung Galaxy S9, Google Pixel 3)
To give you the exact steps for your device, please tell me: Turn on and USB Debugging in Developer Options
To root your device, you must follow these specific steps in order:
Get the latest ADB/Fastboot drivers from Android Developers . Samsung Galaxy S9
Is your phone from a specific (like Verizon) or is it unlocked ? Do you have access to a Windows, Mac, or Linux PC ?