HP 15-BS 15T-BS 15-BW 15Z-BW 250 G6 255 G6 Laptop Hinges Cap Cover Left & Right. Compatible Model HP 15-BS 15T-BS 15-BW 15Z-BW 250 G6 255 G6. Product Type Hinges Cap Cover. We shall test it and replace it once the fault has been verified.