To verify what other Pre-Arm safety check are preventing you from continuing, you can connect your IRIS+ to Mission Planner on your PC.
- In the ”FLIGHT DATA” Tab, under the horizon window, click on the ”Actions” Tab.
- There you’ll see an Icon labeled ”Arm/Disarm”. Now, before clicking it, please note that the motors may spin at this point so if you have propellers on, you may want to remove them for safety reasons.
- Click it. If you still weren’t able to arm the motors this way, you should have received a message in the Horizon window telling you what Pre-Arm check is being activated.
- If it’s because of calibrations, you can correct this in the ”INITIAL SETUP” Tab, under ”Mandatory Hardware” by going through the indicated calibration procedure.