My friend looking for to buy this one so can anyone know this one supports openwrt or not or if not why?
Most probably not, in this case.
But it's hard to know, if it isn't on fccid.io, or some other hw info site.
Huwaei often uses its own silicon, so don't get your hopes up.
It's not listed on the supported hardware list:
Do not bother. With Huwaei on the US blacklist, they won't be able to source any SoCs from the likes of QCA, MediaTek, ... so it's worthless unless you got the chops and time on your hands to try your hand at porting to whatever hardware is inside.
Thanks actually that device specs was good at that price point.