If yes you only option is to buy a similar main board or laptop that is broken/liquid damaged cheap.
+
If yes you only option is to buy a similar main board or laptop that is broken/liquid damaged cheap and move a flap across, it is possible to re attach them but quite difficult.
If it has just come off, it is possible to get these to slide back on.
Did the flap physically snap?
If yes you only option is to buy a similar main board or laptop that is broken/liquid damaged cheap.
If it has just come off, it is possible to get these to slide back on.