Most fastboot commands require an unlocked bootloader. Unlocking usually triggers a full factory reset automatically.
Moving to an older version of Android requires a complete wipe of the device's storage to prevent app crashes. fastboot erase tool download
Once downloaded, open a terminal in the folder and use: fastboot erase userdata – Wipes only user data. fastboot erase cache – Wipes the cache partition. fastboot -w – Performs a full factory reset. 2. Third-Party "Fastboot Reset" Tools Most fastboot commands require an unlocked bootloader
fastboot erase userdata
This error means your command line tool is not running inside the correct folder. Ensure you opened the command prompt directly inside the extracted platform-tools directory where fastboot.exe is located. "Waiting for device" fastboot erase tool download