@upendradawadi that is one elusive flex cable. It's pretty difficult to fin out anything specific. I added the service manual to this page [[Topic:Panasonic Lumix ZS50]] under documents. It looks like the shutter flex connects to the Lens Flex cable. There is nothing specific in the schematic other than the LENS DRIVE BLOCK DIAGRAM on page 54, which does not give a clear indication what those points are. You may get some answers from the schematic and the Lens Flex cable on page 84.