Prearm error GPS alt error 5850m (see BARO_ALTERR

Hardware Pixhawk family
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42

Did you read through this discussion ?
Check you’ve got the correct version firmware installed and set the baro option

43

im also have same prablum

44

What version are you using?

45

I’m currently using matek 743

46

I change fmuv3 to Pixhawk 1 for Pixhawk 2.4.8 flight controller and drone is working well.

47

well, thanks this worked with me too. the thing left with me is the GPS altitude variation is going crazy including the vertical acceleration I’m using ublock m8n