NEC Versa P520 Disassembly Manual page 29

(4)=M2x3
Fig. 52: Removing the LCD left and right hinges assembly
13. Put aside the hinges assembly and remove the cover switch cable on left hinge
assembly as shown in the following picture.
Fig. 53: Removing the cover switch cable
M1.5x5
NEC Versa P520 Disassembly Manual Page 29