Despite having all categories green in the ‘summary’ section, when I try arming it gives me the following message.
Help anyone?
Thanks in advance
There is a major difference between (a) setting up the copter/plane, and (b) passing preflight checks. The preflight checks cover about a dozen things, primarily instantaneous sensor readings. The goal of the preflight checks is to figure out if the plane/copter is ready to fly in that instant, not whether it is set up correctly in general. There should be more messages - airspeed, compass, battery, GPS, etc. that should help you to figure out which specific sensor/subsystem is causing the fail. A typical problem is e.g. not to have the pitot cover in place when turning on the system, which will throw high airspeed warnings.
A basic startup sequence for an airframe is:
RC transmitter On
QGC On
Airframe on level ground
View of the sky
Pitot cover on
Not near big block of iron
Plug in battery
Don’t wiggle airframe for several seconds
Set Mode: Stabilize
Kill switch off
Airframe arm: Arming switch hold for ~2 secs - confirm blink pattern change and servo activity
Pitot cover remove
ESC arm: RC throttle down and right for ~2 secs
Device ready