Today’s new MediaTek phones like Tecno Camon 12 Pro CC9 have many security layers that make normal flashing difficult. If you don’t have the correct DA file, SP Flash Tool rejects the mobile with an “Authentication Error”. The DA file is the technical authorization that makes the flashing language between the mobile and the computer the same so that the files can be transferred properly. Many users, when they see errors like “BROM ERROR: S_AUTH_HANDLE_IS_NOT_READY” or “STATUS_SEC_AUTH_FILE_NEEDED” during flashing, don’t understand what to do next. The main reason for these errors in phones like Tecno Camon 12 Pro CC9 mobile is the absence or wrong version of the DA file. If you use the specific and model-specific DA file, these problems are resolved immediately and the mobile is flashed smoothly.
Some users don’t even know what a DA file is and why it is necessary before flashing. They get panicked when they open SP Flash Tool and the mobile is not detected. However, in phones like Tecno Camon 12 Pro CC9, the DA file is the file that temporarily unlocks the mobile and gives access to the system. Whether your goal is to remove FRP or repair IMEI, the DA file guides you every step of the way. In modern mobile phones like Tecno Camon 12 Pro CC9, where everything is encrypted and every software asks for approval, the role of the DA file is like crossing the border without a passport. This file disables the mobile’s BIOS-level security for a few moments, allowing flashing tools to write files, access partitions, and repair the system.