What does fastboot mean? Fastboot, English translation means quick start. Fastboot is a lower-level brushing mode than recovery in Android phones. Connecting the mobile phone with USB data cable is a brush mode. Compared with the card brush of some systems (such as ios), the line brush is more reliable and safer.
Quick start specific operation preparation tool
Quick Start Tool (available in Android Toolbox)
Boot.img and recovery.img files that can be used by mobile phones.
Specific steps
First, the mobile phone enters fastboot mode, connects the computer with data cable, and installs related drivers.
Secondly, unzip the downloaded fastboot tool, such as to D:/fastboot/.
Third, put the prepared boot.img and recovery.img files into D:/fastboot/.
4. Open the command line tool cmd and execute the following command to enter the directory where fastboot is located.
D: input
Cd quick start carriage return
Quick start equipment entry
If it lists your mobile phone, such as HT * * * * * * it means that the mobile phone is connected.
Execute the following command to brush in the boot and restore:
Fastboot flash recovery.img enter。
Wait for ok (here is refresh recovery)
Fastboot flashboot.img enter。
Wait for ok (here is the refresh boot)
Quick start usage command.
Literally, it means quick start, and it is also a brush interface, but it is lower than recovery. This bottom layer means closer to the hardware layer.
Both are important, but fastboot is more important. Don't be nervous when you can't recover. You can also enter fastboot to save it, but when you can't even enter fastboot, it is a brick.
In order to use the quick start function, you should turn off SPL. Your computer must also have an ADB driver installed.
The way to enter Fastboot is to press enter+boot when shutting down; At present, the way for mainstream Android phones to enter Fastboot is the volume-+power button.
Usage of Fastboot: fastboot [] < Command >
explain
[] indicates that this is optional.
& lt& gt is enclosed to indicate that it is necessary.
Available commands:
Update < file name > to upgrade the system from the official update.zip, the update.zip must be official.
Flash Boot+Flash System
Flash & lt partition name > [< File name >] writes the file to the partition. The file must be in the correct format. Partition names include but are not limited to system, recovery, boot, splash 1, hbot, radio, user data and cache.
Erase < partition name > clear partition.
Getvar & lt parameter name > displays the startup parameters.
Boot & lt kernel file >; [& lt； Ramdisk file > download the kernel from the computer to the mobile phone and start the system with the kernel.
Flash: original boot < kernel file >; [& lt； Ramdisk file >] create boot.img and download it to the mobile phone startup system.
Devices Lists all devices connected to the computer.
Restart the normal startup system.
Reboot-bootloader boots the system to hboot.
election
-w clears the user data partition and cache partition, which is equivalent to "wipe data/factoryreset" in recovery.
-s & lt； Serial number > specifies the serial number of the device to be operated.
-p & lt； Product name > specifies the product name of the device to be operated. Like heroes, Bravo, dreams. ...
-c & lt； Command line > replace the startup command line of the system with the command line.
divide
System: System partition. This is the partition where we usually brush the machine.
Userdata: data partition.
Cache: cache partition
Restore: Restore the partition.
Boot: partition for storing kernel and ramdisk.
Hboot: This is the partition where SPL is located. This is very important. It is also the partition where fastboot is located. If the brush is wrong, it will really turn the brick.
Splash 1: This is above the fold.
Radio: This is the partition where the baseband is located.