fastboot:tldr:5b56a

The command "fastboot flash ${file-img}" is used in the Android Fastboot mode to flash a specific image file onto an Android device.

Here is an explanation of each component:

• "fastboot": It is a tool used in the Android software development process that allows communication between a computer and an Android device while it is in Fastboot mode.
• "flash": It is a command used with "fastboot" to write or flash a specific file onto the Android device's storage or memory partitions.
• "${file-img}": This is a placeholder for the actual image file name that you need to specify. The image file typically has a .img file extension and contains firmware, boot, recovery, system, or other partitions that need to be flashed onto the device.

To use this command, you would replace "${file-img}" with the actual image file name and its path (if necessary) on your computer, and then execute the command. Make sure that the device is in Fastboot mode and connected to the computer via USB before running this command.