Version 2:
(Acoustic cover with press-stud fastener)
Press press-stud fasteners (1 to 4) in succession and simultaneously raise acoustic cover slightly. Acoustic cover can be unlocked when all four press-stud fasteners have been unlocked.
(Acoustic cover with press-stud fastener)
Press press-stud fasteners (1 to 4) in succession and simultaneously raise acoustic cover slightly. Acoustic cover can be unlocked when all four press-stud fasteners have been unlocked.