fastboot Man page

FASTBOOT(1) fastboot Manuals FASTBOOT(1)


fastboot – Android flashing and booting utility


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


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


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

-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.

fastboot update filename
Reflash device from

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 boot‐
loader-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.

The Android Open Source Project.

android-platform-system-core 6.0.1_r16 FASTBOOT(1)

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