Lenovo Y520-15IKBN 80wk-00J5RK Working bios n17p-g1-a1,DY512 NM-B191 REV 1.0,BIOS-pass 200410,bios version 4KCN24WW 25q64fv1q_8MB,Ec version 4KEC24WW 25q80jvs1q_ 1MB $1.99 – Purchase Checkout Added to cart