run unlocktool latest version
select samsung platform
click security
select samsung galaxy a03s
select brom/edl
click (brom) erase frp
power off phone, hold volume +/- then connect usb cable to pc
wait till operation finished
select samsung platform
click security
select samsung galaxy a03s
select brom/edl
click (brom) erase frp
power off phone, hold volume +/- then connect usb cable to pc
wait till operation finished