G928F Write default efs no work

Please Help Me!!! Model Samsung SM-G928F. Software version BST 3.28.00. Write Default EFS is not end write to phone. Phone is dead. I write to phone 4 files firmware. Phone is no boot. Wait on logo screen. Option write default efs is not work, please solved problem.
Hello,


Write Efs.zip In PDA ... & Let Me The Result Good Luck....
  Flashing firmware, write root, write backup efs solved problem.
Thanks.