: Ensure the file matches your device's current Binary (Bit) version (e.g., U1, U2, U4, etc.). Flashing a file with a lower binary version than what is currently on the phone will fail.
: Using unauthorized software or engineering files will void your warranty and may permanently trip Knox. samsung-sm-a520k-efs-eng-file
Press and hold buttons simultaneously. Press Volume Up when the warning screen appears to confirm. Flash the File : Connect the device to your PC via a USB cable. : Ensure the file matches your device's current