It was unused for a few years, but later plugged in to only find out the battery maybe dead as the system didnt turn on and kept flashing red light. have tried it all but it doesnt work. The mute button brings it back to yellow Soild but soon starts flashing with red light. There ...
Then you have to remove the main battery (look up lenovo y50 hardware manual), and the button cell battery that is attached with a red and black twisted wire (just pull from the wire). After doing so, you need to let the capacitors discharge by waiting approx. 10 minutes. After doing ...