mavic air 2s backword sensor error (code:1800034) whats problem

I had that error once before.  What I did to correct it:

1 - Uninstalled and reinstalled the DJI Fly app on my mobile device.  Issue still persisted.
2 - I downloaded and installed the latest version of the DJI Assistant 2 (Consumer Drones Series).  
3 - Next I refreshed the firmware of the drone using the software.
4 - Then I calibrated the vision sensors using the software.
5 - Not sure but I think I calibrated the IMU also but probably not needed.

Also, make sure your sensors are clean

Hope you get the issue fixed soon.

Hi there. Thank you for reaching out and we're sorry for the trouble that this has caused. Kindly please follow the steps that DowntownRDB provided in his response above and see if the issue persists. Please make sure to download the correct version of the DJI Assistant 2 software using the link below. Please keep us posted with the result. Thank you for your understanding and support.

https://www.dji.com/downloads/so ... sumer-drones-series