When a HUAWEI Enjoy 5S TAG-L21 mobile becomes completely dead, and does not show any sign of life even after connecting a USB cable, then the common user gets worried that the phone may be permanently damaged. But an expert technician knows that if the mobile is based on MTK chipset, then it can be revived with the help of DA Auth File. This file not only detects the mobile in Test Point or Brom Mode but also enables the tool to write minimum boot files and make the device bootable again. In such situations, the DA file seems like no less than a magic key.
HUAWEI Enjoy 5S TAG-L21 A common but dangerous error while flashing or formatting a mobile is "Preloader missing". If this file is missing, the mobile can be completely dead. To reinstall it with the help of SP Flash Tool, the DA Auth File is required, because this file enables a secure handshake between the hardware and software of the mobile. Without it, the tool refuses to make a connection to the mobile.