Change the USB cable, switch to a USB 2.0 port, or recharge the phone battery. Secure boot is active and blocking unsigned DA files.
SP Flash Tool is a popular software used to flash or update the firmware of Android devices, especially those based on MediaTek (MTK) chipsets. It's a powerful tool that helps users to flash stock ROMs, custom ROMs, and other firmware packages to their devices.
The community's primary motivation is to enable the repair of devices that would otherwise be "bricked" or unrecoverable using official means. For many technicians in developing regions, these modified tools are essential for their daily work.