Sony DSC-RX100M4 Service Manual page 75

10. Remove the LF-2091 Flexible Board from the hook and the boss of the Stationary Tube.
Boss
Hook
11. Remove the Focus FPC Retainer.
Focus FPC Retainer
12. Disconnect the two flexible boards (SS and SH) from the connectors of the LF-2091 Flexible Board.
SS flexible board
SH flexible board
13. Remove the connector part of the LF-2091 Flexible Board from the holes of the Stationary Tube.
Holes
Holes
4-27
DSC-RX100M4