So.Sona this "also when I put or remove the charger the pc make a beep” could be because your battery is discharged below the threshold of accepting a charge. So get a new battery first. Attach an external monitor and see if that displays anything. If so you know you are having issues with the display. If not then you need to try to get into the BIOS. Sometimes a bad hard drive can also be the cause for this. Download the service manual [http://support.lenovo.com/docs/UM020202|from here]