Android OS is an Open-source platform that has features using which, users & developers can make changes in the coding, apps, and more. Android OS has a number of bootable partitions like fast boot mode, recovery mode, a safe mode where all have different degrees of functionalities. Recovery mode, for instance, is used to repair, restore, apply updates on the phone while the fastboot mode is a powerful alternative to the former. It is a small tool that comes with Android Software Developer Kit (SDK) which has its own pros over the recovery mode.
What is Fastboot & What Does It Do?
There are many readers on this website who are curious to know the functionalities of fast boot and how it can be used. Basically, fastboot mode or partition boots up on the phone even before the OS starts. This enables the developers to use it even without installing Android OS at times. Fastboot mode is used to install updates like recovery image i.e. a custom recovery mod that further escalates the functionalities which users can use further.
Fastboot is also used to override kernel command lines, erase and wipe off partitions and more. The mode can be accessed using the phone or through the command line. Although the procedure is somewhat different for other smartphone manufacturers.