Boronated graphite sample with B4C contents of few wt% exhibit characteristic of 3D-weak localization at low temperatures and in weak magnetic field region. A boron atom supplies one hole and the Fermi surface with E-F = -0.4 eV (I wt% sample) is composed of the two hole bands E1- and E2- and the electron Fermi surface disappears. E1- band (majority hole) plays a dominant role in the 3D-weak localization. Kawabata theory is extended to the SWMcC-band and the present theory well explains the resistivity, magnetoresistance and Hall effect behaviors.