On this page, you can download all latest ADB and Fastboot zip files. You will learn How to Install ADB and Fastboot on Windows, Mac and Linux. If you want to install a custom ROM and kernel’s, you must download ADB and Fastboot on your Windows. A lot of Android users want use different firmware’s, and root their Cellular C21. First of all, you need to unlock bootloader and you must need to install ADB and fastboot drivers
ADB is stands for "Android Debug Bridge", it is a small debug tool that you will find in Android Software Development Kit (SDK). You can control your Cellular C21 from the computer with ADB using USB. It is basically a command line tool that does the communication between your Android device and a computer. You can also transfer files using powerful shell commands.
ADB, Fastboot is also a part of Android Software Development Kit (SDK). With Fastboot tool, you can modify reflashing partition and image zip files, recovery, and updates from a computer using a USB connection.