I started up the drone with the protector on the lens and now there is a black band at the bottom and right of the viewport. Can I correct this?

Hi there. Thank you for reaching out and we're deeply sorry for the trouble that this has caused. Are you referring to your DJI FPV drone? Can you please confirm if you did receive an error message about the gimbal on your DJI Goggles? In addition, kindly please perform the gimbal calibration through the app and check if the issue persists. Please keep us posted. Thank you.