Google introduced the Android 10 operating system back in September 2019. Android 10 brought in new support for resizable partition, which relocates the Fastboot from bootloader to userspace. This, in turn, allows the flashing code to be in a common location implemented by HAL (Hardware Abstraction Layer). With the help of Fastboot, the user can perform and modify various system images using a PC over a USB cable.
It can be defined by a command to execute the instructions, software to run the phone when in Fastboot mode, and a program to talk to your phone over a USB connection. There are different methods by which you can enable Fastboot on your devices. But in this post, we will guide you on how to enable fastbootd, which has been brought over by Android 10 and requires some ADB commands to integrate fastbootd. So, without any further ado, let us get straight into the article itself:
What is Fastbootd?
To support fastbootd, the bootloader must implement a new boot control block (BCB) command of boot-fastboot. To enter fastbootd mode, bootloader should write boot-fastboot into the command field of the BCB message and leave the recovery field of BCB unchanged (to enable the restart of interrupted recovery tasks). The status, stage, and reserved fields remain unchanged as well. The bootloader is expected to load and boot into the recovery image upon seeing boot-fastboot in the BCB command. Recovery then parses the BCB message and switches to fastbootd mode.
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