Английская Википедия:Fastboot

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Шаблон:Short description Шаблон:For Шаблон:Distinguish Шаблон:Infobox software Fastboot is a communication protocol used primarily with Android devices.[1] It is implemented in a command-line interface tool of the same name and as a mode of the bootloader of Android devices. The tool is included with the Android SDK package and used primarily to modify the flash filesystem via a USB connection from a host computer. It requires that the device be started in Fastboot mode. If the mode is enabled, it will accept a specific set of commands,[2] sent through USB bulk transfers. Fastboot on some devices allows unlocking the bootloader, and subsequently, enables installing custom recovery image and custom ROM on the device. Fastboot does not require USB debugging to be enabled on the device.[3] To use fastboot, a specific combination of keys must be held during boot.[4]

Not all Android devices have fastboot enabled,[5] and Android device manufacturers are allowed to choose if they want to implement fastboot or some other protocol.[6]

Keys pressed

The keys that have to be pressed for fastboot differ for various vendors.[7]

  • HTC, Google Pixel, and Xiaomi: Power and volume down
  • Zebra and symbol devices: Right scan/action button
  • Sony: Power and volume up
  • Google Nexus: Power, volume up and volume down

On Samsung devices, (excluding the Nexus S and Galaxy Nexus devices), power, volume down and home has to be pressed for entering ODIN mode. This is a proprietary protocol, and tool, as an alternative to fastboot. The tool has a partial alternative.

Commands

Some of the most commonly used fastboot commands include:

  • flashШаблон:Snd rewrites a partition with a binary image stored on the host computer.
  • flashing unlock/oem unlock ***Шаблон:Snd unlocks an OEM locked bootloader for flashing custom/unsigned ROMs. The *** is a device specific unlock key.
  • flashing lock/oem lock ***Шаблон:Snd locks an OEM unlocked bootloader.
  • eraseШаблон:Snd erases a specific partition.
  • rebootШаблон:Snd reboots the device into either the main operating system, the system recovery partition or back into its boot loader.
  • devicesШаблон:Snd displays a list of all devices (with the serial number) connected to the host computer.
  • formatШаблон:Snd formats a specific partition; the file system of the partition must be recognized by the device.
  • oem device-infoШаблон:Snd checks the bootloader state.
  • getvar allШаблон:Snd displays all information about device (IMEI, bootloader version, battery state etc.).

Implementations

Шаблон:Primary sources The fastboot protocol has been implemented in the Android bootloader called ABOOT,[8] the Little Kernel fork of Qualcomm,[9] TianoCore EDK II, [10][11] and Das U-Boot.[12]

See also

References

Шаблон:Reflist

External links

Шаблон:Android Шаблон:Firmware and booting

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  1. ↑ Шаблон:Cite web
  2. ↑ Шаблон:Cite web
  3. ↑ Шаблон:Cite book
  4. ↑ Шаблон:Cite web
  5. ↑ Шаблон:Cite web
  6. ↑ Шаблон:Cite book
  7. ↑ Шаблон:Cite book
  8. ↑ Hay, R. (2017). fastboot oem vuln: Android bootloader vulnerabilities in vendor customizations. In 11th USENIX Workshop on Offensive Technologies (WOOT 17).
  9. ↑ Шаблон:Cite web
  10. ↑ Шаблон:Cite web
  11. ↑ Шаблон:Cite web
  12. ↑ Шаблон:Citation
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