Go to the "Authentication File" section and load the .auth file you downloaded.
: A major pain point for technicians is the "Status Sec Auth File Needed" error. This occurs when the tool's default Download Agent cannot authenticate the device's secure bootloader, requiring a custom, model-specific .bin file.
Given the phone’s model and a partially functional preloader that entered download mode, Karim decided the safest path was to request the DA Auth through official channels first. While waiting, he prepared the rest of the recovery plan: he created a clean virtual machine with stock SP Flash Tool, the exact scatter file matching the device’s firmware, and multiple backups of the original preloader and partitions he could read. He also dusted off a hardware eMMC reader and mapped the phone’s test points in case the official route failed.
Once you have the file, here is how to use it to flash a dead Infinix phone.