If the previous steps did not solve the camera problem, you can try resetting the System Management Controller (SMC) on your MacBook Air. The process varies depending on the model and generation of your laptop. Check the official Apple support website or consult a professional if you are unsure about the specific steps for your device. If all else fails, running the Apple Diagnostics tool can help identify any hardware issues that might be causing the camera malfunction. Refer to the Apple Diagnostics reference codes for further assistance.