i have miracal box i have no problem
some tips
use pin no 1 when insert pin finder in jack(printed on jack holder)
always use pin finder then read then search pin usb mainly then rx tx then apply
use read flash in mstar sprd mtk
all is well
some time msw mstar have problem then use pin no one as v bat manualy and press p key of fone
may be helpful for miracal box user(i have no problem last three month
)
you know it finds coolsand pins too but after applying this requirs driver