There is a magnet covering a screw to the left of the serial number located in the upper center of the upper case. Remove the magnet, smooth,round and small, and loosen (doesn't need to come out) the screw to remove the upper case. Proceed to disconnecting the speaker and power cables. NOTE: this magnet is not the same one indicated in step image 33.
There is a magnet covering a screw to the left of the serial number located in the upper center of the upper case. Remove the magnet, smooth,round and small, and loosen (doesn't need to come out) the screw to remove the upper case. Proceed to disconnecting the speaker and power cables. NOTE: this magnet is not the same one indicated in step image 33.