first you need this cable called uart
or you can modified cable like this
then after that
insert uart cable to your deadboot/vibrate phone and press
power botton-vol down-home botton
to enter download mode
install samsung driver
samsung driver
open samsung odin 3.10
odin 3.10
then flash this firmware
deadboot file
note -choose only ap-csc-and cp
then flash
done
or you can modified cable like this
then after that
insert uart cable to your deadboot/vibrate phone and press
power botton-vol down-home botton
to enter download mode
install samsung driver
samsung driver
open samsung odin 3.10
odin 3.10
then flash this firmware
deadboot file
note -choose only ap-csc-and cp
then flash
done