Boot won't open with fob, button or key in socket behind drivers seat

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Hi All,

 

I've got a roof error on my convertible (MY2010) and its affecting the boot opening.  I've booked it into Cayman autos for a look at the weekend but before I take it down I wanted to see if it was anything obvious.  I've tried the double click on the remote, the button on the boot itself and using the key in the socket behind the drivers seat (the key turns but fails to open the boot).  Nothing is working.  Any ideas?

 

Thanks

Carl