[AndroidXTC]

I can'r remember how I did it last time.

[Mikey D_PhD]

Go to settings, then battery. The check box for fastboot is at the bottom.

[AndroidXTC]

Thanks

[SphincterBoy]

Curiously, what is the difference and why choose one over the other?

[jasoraso]

Curiously, what is the difference and why choose one over the other?

The fastboot setting is similar to the "hibernate" mode on a laptop. When you power off the phone, and fastboot is enabled, the phone hibernates, so when you turn your phone back on, it boots faster than a normal "cold boot" from power off mode. This setting is great if you power your phone off/on frequently, like when traveling by airplane, and you find yourself powering the phone on/off regularly.

However, the fastboot setting isn't desirable if you are trying to boot into bootloader or recovery, or if you want the phone to re-boot from a true memory clear state.

[ggrr8t]

Most used apps stay open. Accumulated memory cache, hogs resources. With out fast boot, starts clean with minimum open apps. Using fast boot also drains power slightly more. I pretty much always use fast boot. Occasionally I will use close all apps and restart option.