Can’t remove euro cylinder can’t access screw

[Mojo12345]

Hi please help I can’t remove the Euro cylinder screw from my UPVC door as the mullion plastic plate is difficult to remove, the top lock needs to be removed so the white plate can be slid out from the top but I can’t remove the top lock any advice how to remove it thanks

 

[crank39]

Take the face plate off the centre lock, the screw will be behind that

 

[Mojo12345]

I’ve sorted it thanks alot