I also bricked my 4 years old y510p laptop when messing with cpu voltages in moddee bios. Fix is mentioned in this following quote,
This fix worked for me! If you facing same problem, you just need to short the two copper piece that is labbelled as jmos2. Dont short with jmei, it could lead other problems. I used stainless steel wire that i using for ecig to short copper pieces in jmos2. Note that, you must run pc, i did plugged ac adapter and battery was on. Thank you very much jon7701!
Note: You may have to short jmos2 3-4 times before it could fully fixed, if computer goes bootloop after you have shorted jmos2, just plug ram sticks and you are good to go