Lock sign on the screen
There is "Lock" sign appeared on the screen and the control wheel does not work, which means I can't change wb, iso, or metering. It never happened before.
The Panasonic LUMIX DMC-LX100 is a compact digital camera with 12.8 MP resolution, 4K HD video capabilities, and Wi-Fi access. It was released in November 2014.
Joohee Lee from the owners manual "●When the cursor button is locked, operation of the cursor button, [MENU/SET] button, and control dial is disabled. To enable operation, press the function button again."
you can download the user manual from here