Make sure the board is perfectly alligned before you press it! ... Then press directlt where you can see the connectors are soldered to the board, but swap between pressing each of them a little bit so you do not bend any connectors... The easiest are the connectors on the sides and top since these seems to have screws holding the underlying main board in place so it does not bend... Be more careful with the bottom connector... Pressing on this will bend the underlying mainboard, and the keyboard is so close you cannot brace the mainboard from beneath while pressing the cpnnector in...