Altitude errors

[J997654-uk]

When I was flying yesterday I kept Spark at around ~200m most of the time but I could see on my screen (within the app) flashing red range from 0.7m-3m. This has eventually caused forced landing that I had to cancel. This has disrupted recording the footage. When lowering down errors were still occurring occasionally. This was the first time I have seen this error. There was 11 GPS showing on the screen, good visibility and not too strong wind.

What is the reason for this happening? How to avoid this?

 

[McCloudSpark]

Have you added anything to the RC that the sensor can "see" (like a skin, landing feet, etc.)? Any fog or maybe dirt on the sensor? These are common causes. Then there is always the dreaded sensor malfunction

 

[J997654-uk]

No, I haven't added anything. I will check if there is anything on the sensor. Thanks

 

[DameEdnaBrown]

When I was flying yesterday I kept Spark at around ~200m most of the time but I could see on my screen (within the app) flashing red range from 0.7m-3m. This has eventually caused forced landing that I had to cancel. This has disrupted recording the footage. When lowering down errors were still occurring occasionally. This was the first time I have seen this error. There was 11 GPS showing on the screen, good visibility and not too strong wind.

What is the reason for this happening? How to avoid this?

I have heard that facing the sun can cause errors that way