how to reset frp for sm-g531f

salut plz
how to reset frp for sm-g531f
Samsung SM-G530W (Grand Prime LTE CAN) at USB (COM29) [LOKE FLASH] {Reset FRP}
PLATF: LOKE 00020000
PIT Read Done: 00:00
Reset FRP Done in: 00:00.844
Error: Close LOKE: 8, FFFFFFFF

not workin:mad: