Chosen Solution
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.
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
