Root Android Access

To get Android root access, you must first root the device and then use the adb shell command followed by su in a terminal to switch to the root user. If the device is a development build, you can use adb root to restart the adbd daemon with root privileges. 

Before you begin

• Root your device: This is the most crucial step, as root access is not available by default on most devices. You will need to follow a rooting guide for your specific device, which typically involves unlocking the bootloader and flashing a custom recovery or a rooted image.
• Enable USB Debugging: Go to Settings > Developer options and enable USB debugging.
• Install ADB: You will need the Android Debug Bridge (ADB) tools on your computer. 

How to get a root shell

Method 1: Using adb shell and su (requires a rooted device) 

1. Open a terminal or command prompt on your computer.
2. Connect your Android device to your computer via a USB cable.
3. Type adb devices and press Enter to confirm your device is connected.
4. Enter adb shell and press Enter to open a shell on your device.
5. Type su and press Enter.
6. On your device, a prompt will appear asking you to grant root access to the shell. Accept it.
7. The prompt will change, indicating you now have root access. You can type whoami to confirm it shows root. 

Method 2: Using adb root (development builds only)

1. Open a terminal or command prompt on your computer.
2. Connect your device to your computer via USB.
3. Type adb devices and press Enter to confirm your device is connected.
4. Type adb root and press Enter.
5. This command restarts the adbd daemon on your device with root privileges. You will now have root access when you run adb shell. 

How to exit root shell

• If you used the su command, type exit and press Enter, or use the provided exit command (e.g., Volume - and D) to return to a standard user shell.
• If you used adb root, you can connect as a standard user by using adb shell without the adb root command first, or you can use adb unroot. 

Install BusyBox

Open Busybox

Install

Quit

Install Super User