: Modern MTK devices (like those from Tecno, Xiaomi, or Black Fox) require a custom DA file to permit read/write operations during firmware updates or repairs.
It is an Authentication (Auth) file used by flashing tools (like SP Flash Tool or specialized service boxes) to communicate with the device's bootloader. da-swsec.bin download
Once you have downloaded the correct DA_SWSEC.bin for your phone, follow these steps to use it: : Modern MTK devices (like those from Tecno,