A small number of non-functional pixels (up to 0.5% of the total quantity) is allowed by the sensor and is not considered a defect. However, you can attempt to repair them using the built-in Pixel Repair function.
How to repair defective pixels:
Access the Pixel repair menu:
Open the device menu and select Pixel repair.
Use Picture-in-Picture (PiP) mode:
The screen will display an auxiliary cross in PiP mode.
Locate the defective pixel:
Use the navigation buttons to move the cross to the location of the bad pixel.
The defective pixel should disappear once the cross is correctly aligned.
Confirm the repair:
Press the ON/OFF button and wait for the “OK” message on the display.