HI all
A good solution to remove frp for J710F u5 binary
first flash Combination File u5 COMBINATION OXA FA60 J710FXXU5BRC1
after that flash single file firmware u5 J710FXXU5BRC2 J710FOJK5BRC1
but only sboot.bin, cm.bin, boot.bin, system.bin, modem.bin (uncheck cache, hidden and recovery because after flash you always will get in to recovery and wont bypass frp )
Good work to all
hope this solution will help someone