Unpacked my drone after 3 months of down time.
Updated the firmware on both the RC 2 and Mini 4

I get a sensor error on the controller indicating: backward/forward not available, up/down not available, left/right not available-  all in red letters on the screen

The drone will only fly if in C mode
error returns when I switch to N or S mode
Any suggestions?

Hello there. Thanks for reaching out. o address the issue, could you kindly start by updating the firmware to the latest version? If you are flying in N or S mode, please ensure that the APAS (Advanced Pilot Assistance Systems) feature is properly enabled. Additionally, it’s important to check if the flying environment has sufficient lighting, as low light conditions may cause the sensors to malfunction. We recommend conducting a test flight during daylight or in well-lit conditions.  If the issue persists, please provide a screen recording captured in a well-lit environment and submit a ticket for further assistance.

I failed to mention that I upgraded the firmware on both the controller and the drone.

I cannot fly in N or S mode. I cannot get the propellers to start turning.. I have to switch to C mode to even get it to lift off.

I cleaned the sensors and was attempting to fly outside during the day and in Arizona sunshine.

Hello Senator16,
Thank you for the update. We are sorry to hear about the issue with your DJI Mini 4 Pro. Could you please provide us with the relevant picture of the error message displayed on the remote controller? This will help us further verify the problem.
Thank you for your understanding and cooperation.