NAME

       fastboot - Android flashing and booting utility

SYNOPSIS

       fastboot  [-w]  [-u] [-s device] [-p product] [-c cmdline] [-i vendorId] [-b baseAddr] [-n
       pageSize] [-S size[K|M|G]] command

DESCRIPTION

       fastboot is a command line tool for flashing an Android device, boot an Android device  to
       fastboot mode, etc..

OPTIONS

       -w     Erase userdata and cache (and format if supported by partition type).

       -u     Do not erase partition before formatting.

       -s device
              Specify device serial number or path to device port.

       -p product
              Specify product name.

       -c cmdline
              Override kernel commandline.

       -i vendorId
              Specify a custom USB vendor ID.

       -b baseAddr
              Specify a custom kernel base address (default: 0x10000000).

       -n pageSize
              Specify the nand page size (default: 2048).

       -S size[K|M|G]
              Automatically sparse files greater than 'size'.  0 to disable.

COMMANDS

       fastboot update filename
              Reflash device from update.zip.

       fastboot flashall
              Flash boot, system, vendor, and -- if found -- recovery.

       fastboot flash partition [filename]
              Write a file to a flash partition.

       fastboot flashing lock
              Locks the device.  Prevents flashing.

       fastboot flashing unlock
              Unlocks  the  device.   Allows  flashing  any  partition  except bootloader-related
              partitions.

       fastboot flashing lock_critical
              Prevents flashing bootloader-related partitions.

       fastboot flashing unlock_critical
              Enables flashing bootloader-related partitions.

       fastboot flashing get_unlock_ability
              Queries bootloader to see if the device is unlocked.

       fastboot erase partition
              Erase a flash partition.

       fastboot format[:[fs type][:[size]] partition
              Format a flash partition.  Can override the fs  type  and/or  size  the  bootloader
              reports.

       fastboot getvar variable
              Display a bootloader variable.

       fastboot boot kernel [ramdisk [second]]
              Download and boot kernel.

       fastboot flash:raw boot kernel [ramdisk [second]]
              Create bootimage and flash it.

       fastboot devices [-l]
              List all connected devices (with device paths if -l is used).

       fastboot continue
              Continue with autoboot.

       fastboot reboot [bootloader]
              Reboot device [into bootloader].

       fastboot reboot-bootloader
              Reboot device into bootloader.

       fastboot help
              Show this help message.

AUTHORS

       The Android Open Source Project.