In this video i am going to show you how to remove sm-j400f android 9.0 u4 binary frp by Combination. Please watch the whole video for complete successful process.
Download files from this link
https://www.pkrom.net/2019/11/sm-j400...
Hint :
if your mobile stuck at logo after full flash please wipe data and cache from recovery mode (Volume up+Home+Power) button combination.