The problem of Alcatel A5 LED 5085Y mobile is not just about getting stuck on boot. Sometimes, the phone becomes completely dead, neither does the charger light up, nor does the computer detect it. Now in such situations, a common man thinks that his phone will probably never turn on. But those who are familiar with the inner world of mobiles know that if the boot ROM is alive, then the mobile can be brought back to life with the help of DA Auth File. In this process, a test point is used, which is a special place on the mobile board from which it can be booted directly via USB. The DA file works like a doctor here, which bypasses the internal physical system of the mobile and directly fixes the memory that has been damaged. If this file is not there, you have neither reading access nor writing access — thus you cannot diagnose or fix the mobile. A trained technician can load the DA file and rewrite the boot partition, recovery, system and userdata from scratch..
Suppose you tried to root Alcatel A5 LED 5085Y mobile or install custom recovery like TWRP, but halfway the tool gave an error — “brom error: S_SECURITY_SF_CODE_FORMAT_FOR_SECURE_ROM”. Now the problem starts from here: the mobile does not boot, recovery does not work and fastboot is not detected either. Most people come here and throw up their hands. But DA Auth File is created for such a situation. This file works like a private protocol, which not only allows flashing tools to bypass security layers but also allows them to write to critical partitions of the device. In the absence of DA file, you cannot overwrite important partitions like recovery or vbmeta. This file temporarily neutralizes the encryption layers protected by the OEM so that the user can configure the mobile anew.