Hi! Most likely the magnet in the topcase was not put back, or moved. It is necessary that this magnet is in the proper place, because sleep mode is activated when this magnet triggers another magnet in the screen as the laptop is shut. This magnet is on the right side of the topcase, just under the bottom-right corner of the keyboard. The magnet is at the bottom end of the metal bar which lines the underside of the right edge of the topcase alongside the keyboard. You will see a slight indentation in the underside of the topcase which outlines where the battery should go. While the magnet can come loose, it usually has sticky material on one side, so it should not be hard to make it stay on the underside of the topcase.
+
Hi! Most likely the magnet in the topcase was not put back, or moved. It is necessary that this magnet is in the proper place, because sleep mode is activated when this magnet triggers another magnet in the screen as the laptop is shut. This magnet is on the right side of the topcase, very near the bottom-right corner of the keyboard. The magnet is at the bottom end of the metal bar which lines the underside of the right edge of the topcase alongside the keyboard. You will see a slight indentation in the underside of the topcase which outlines where the magnet should go. While the magnet can come loose, it usually has sticky material on one side, so it should not be hard to make it stay on the underside of the topcase.
Hi! Most likely the magnet in the topcase was not put back, or moved. It is necessary that this magnet is in the proper place, because sleep mode is activated when this magnet triggers another magnet in the screen as the laptop is shut. This magnet is on the right side of the topcase, just under the bottom-right corner of the keyboard. The magnet is at the bottom end of the metal bar which lines the underside of the right edge of the topcase alongside the keyboard. You will see a slight indentation in the underside of the topcase which outlines where the battery should go. While the magnet can come loose, it usually has sticky material on one side, so it should not be hard to make it stay on the underside of the topcase.