Thanks man. On A510FD 7.0, this twrp file works perfect. However the Super SU rooting file from this thread doesn't root Nougat well. I got some wifi and brightness problems. I found another rooting file that worked perfectly well on my A510FD. Will share it here.
https://download.chainfire.eu/1019/SuperSU/SR2-SuperSU-v2.79-SR2-20170103215521.zip?retrieve_file=1
Thanks all.