To root an Android phone and install Kali Linux, you'll need to follow these steps:
1 : Unlock your Android device's bootloader. This step varies depending on the device and manufacturer, so you may need to consult the device's user manual or perform a web search for specific instructions.
2 : Install a custom recovery tool, such as TWRP, on your Android device. This will allow you to install and run Kali Linux on your device.
3 : Download and transfer the Kali Linux image to your Android device.
4 : Boot your device into recovery mode and use the custom recovery tool to install the Kali Linux image.
5 : After the installation is complete, boot into Kali Linux and follow the on-screen instructions to set up the operating system.
Note: Rooting an Android device and installing a new operating system carries a certain level of risk, so make sure to back up any important data before proceeding. Additionally, rooting your device may void its warranty and could cause performance issues.