Do not lift up the board too fast or too high. This may cause the copper ribbon to break and disconnect the LCD screen permanently.

Loosen the circuit board by lifting it up.

If this is the first time removing the circuit board, there will be a weak adhesive holding the circuit board to the front panel. Remove this with a metal spudger or sharp tool.

The power button may fall out of place. This is fine and you haven't broken anything, but be sure to place it back before inserting the circuit board.