Sony Cyber-shot DSC-RX100 IV - Manual (Page 30)

The [In-Camera Guide] displays descriptions of MENU items, Fn (Function) button, and
settings, and if a function cannot be set, the reason why.
1. Press the MENU or Fn button.
2. Select the desired MENU item using up/down/left/right side on the control wheel.
3. Press the C/ (Custom/Delete) button.
The operation guide for the MENU item you have selected in step 2 is displayed.
If you press the on the center of the control wheel after selecting an item shown
in gray, the reason the item cannot be set is displayed.
Note
Assign the [In-Camera Guide] function to a button in advance using the [Custom Key
Settings].
[8] How to Use Preparing the camera Charging the battery pack
Inserting the battery pack into the camera
How to insert the battery pack into the camera
1. Open the battery cover.
2. Insert the battery pack while pressing the lock lever
(A) with the tip of the battery until
the battery locks into place.