If you try to downgrade Huawei Y3II LUA-L02 mobile, i.e. remove new firmware and install old one, then the phone may become dead due to boot or system mismatch. With the help of DA Auth File, you can bypass secure boot and enforce old firmware, but only experts can succeed in this process. This file is loaded into SP Tool so that it can perform writes that are not possible under normal conditions.
Many times users want to use engineering mode or meta mode for testing on Huawei Y3II LUA-L02 mobile but the device does not give access. With the help of DA Auth File, not only these modes can be activated but also tasks like imei write, nvdata fix, and calibration become possible. This file gives complete control to the software layer of the mobile so that every function can be used.