Suppose you installed a custom ROM in your Alcatel Pop Star (5022) mobile which was not fully compatible. Now the mobile is neither turning on nor going into recovery mode. You tried a million times, but the flashing tools are giving "red state error" or "brom secure error". In such a situation, DA Auth File is the only way that can give a new life to this mobile. With the help of this file, SP Flash Tool gets the permission to replace encrypted partitions as well. The tools use it like a bypass key, which allows file writing without system verification. Without this file, flashing tools cannot proceed beyond secure boot. This is the reason why advanced users and technicians keep its DA file with every mobile so that the mobile can be revived at any time in an emergency..
When Alcatel Pop Star (5022) mobile becomes completely dead and does not charge or blink any light, then the first thing to suspect is that there is a hardware problem. But sometimes this problem is purely software related, especially if the BootROM gets corrupted or secure boot fails. In this case, no normal firmware or tool detects the mobile. In such a case, DA Auth File proves to be a file that overrides secure boot and brings the mobile into boot mode. To use this file, specific SP Flash Tool or other advanced flashing utilities are used, in which the DA file is loaded in a custom way. When this file is injected into RAM, it temporarily suspends the security layers, and after that you can rewrite the mobile's partitions. During this entire process, the DA file acts like a trusted key that unlocks the encryption and provides full access.