What is fastboot intended for?

Fastboot supports a rather limited set of actions. Its primary uses include:

What fastboot does not do

Don't mis-interpret its name to be a "fast alternative to boot your device" (unfortunately, some manufacturers like HTC and Sony have a similarly named "Fast Boot" option). Admitted, a start into fastboot mode is faster -- but that's due to the fact it only needs a limited set of libraries etc. It does e.g. not start Zygote or the System Server (see: Can somebody explain the boot process of an Android device? -- that's what above mentioned "Fast Boot" option on some devices does for a "fast boot": killing the System Server; Unix-Users might compare that to killing the X-Server), so no GUI and no apps here. Neither does it offer a full set of commands (shell access) or the like. As described, it's just a very minimal system for a very specific purpose.

Some good questions and answers tagged

Ever-returning Troubleshooting questions

Useful resources

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