Is the 'Umrah valid for one who uncovered her hair during Tawaf on the pretext of adjusting her hijab and being ignorant of the ruling?

If women cover their awrah while standing, and then complete their tawaf, their tawaf is valid. If the awrah becomes uncovered during tawaf without negligence, and it is immediately covered, the tawaf is not invalidated. However, if they performed part of theaf while the awrah was uncovered, they may act upon the madhhab of Abu Hanifa, which does not stipulate covering the awrah for the validity of tawaf, especially if the incident occurred and it is difficult to rectify.