I'm unable to download INAV
I'm unable to connect to INAV
I'm having trouble binding my Taranis radio to RubiQ
The channel bars in the RX tab don't respond to the radio commands
  • Most likely, your bind was not successful. Head back to Step 1 of the Configuration Guide, run through the binding process again, and look for the troubleshooting tips at the bottom of the page.
I'm receiving radio inputs but the Channel Mapping is off
The flight modes aren’t configured or aren’t visible in the Modes tab
RubiQ's LEDs are malfunctioning

If your LEDs are flashing rapidly, exhibiting rainbow colors or have gone completely white, then Houston, we have a problem — your PCB is malfunctioning.

(Click to View Animation)

If your PCB needs to head back to the shop, you need to submit a support ticket here:

I'm attempting to verify motor rotation and the motors won’t spin
Motor rotation doesn’t match the diagram
The Accelerometer is not calibrated
The Compass is not calibrated
Pre-arming check does not show that Navigation is safe

At the end of a successful Configuration, INAV’s Pre-arming checks, found in the Setup tab, will have all categories showing a green check mark except for “Navigation is safe.” This is because RubiQ comes with GPS lock enabled, which means she won’t fly without first connecting to seven satellites, something she can only do while out at the flight field. Once she’s locked onto the satellites, “Navigation is safe” will give you the green light.

What can go wrong while calibrating the ESC's?
  • Be sure you are dragging the bar to the very top and very bottom of the slider in one move a piece. If you release the bar part of the way down, the ESC’s will be improperly configured.


The drone is not responding to radio controls
  • Make sure the drone is bound to the radio by flipping the Beeper.
      • If the beeper beeps, then RubiQ is not Arming. 
      • If the beeper doesn’t beep, then:
        • A.) The drone and radio need to be bound
        • B.) The drone or radio batteries are low/dead
        • C.) The radio switches may not have been configured in INAV
  • If the Beeper beeps, be sure the master/main radio controller has switches in the correct position for Return to Home, Angle Mode, etc.
  • Verify the channel mapping in INAV.
The drone won’t arm
  • Check the GPS indicator lights. Since GPS Lock is enabled, Rubi will not arm unless she’s connected to 7 or more satellites. Because satellite signal is blocked inside, the drone won’t be able to arm. 
  • Make sure both Position Hold and Return to Launch/Home are deactivated since either one will prevent RubiQ from arming. 
  • Make sure both the Compass and Accelerometer are calibrated. Connect to INAV and review the Pre-arming checks in the Setup tab. At the end of a successful Configuration, INAV’s Pre-arming checks, found in the Setup tab, will have all categories showing a green check mark except for “Navigation is safe.” Calibrate the compass or accelerometer if needed.
The goggles are not receiving video feed
  • Adjust the channel on the goggles.
  • Make sure the camera is plugged into the PCB.
  • Be sure the goggles are connected correctly to the power source and that they are charged.


The drone crashed
  • Perform a post-flight inspection
    • CAUTION Disarm the drone before beginning inspection.
      1. Check the LED’s for any warning messages, then disconnect the battery. Inspect the LiPo battery for any serious physical damage, such as punctures or puffiness, which would require replacing the battery.
      2. Remove all props and check for any that are bent, nicked or broken. These will need to be replaced before the next flight.
      3. Check that all exposed wires are intact. If any have been nicked, wrap them with electrical tape and order replacement parts.
      4. With the hex driver, confirm that screws are still firmly attached and tighten any that feel loose.
      5. Inspect RubiQ’s other physical components, including:
        • Arms, PDB, Frame and Camera Mount: Look for cracks or other signs of a hard impact.
        • Camera, VTX Antenna and VTX: make sure the SMA connection to the antenna is still snug, that the VTX is still connected and fully seated and with the props still removed, plug in the battery to make sure the FPV goggles are still receiving video feed from the camera.
        • Motors: with the props still removed, slowly spin the motors using the radio controller or the Master Control in INAV’s Motor tab. Use your hand to gently feel for any free spinning motors. There should be no rough spots or squeals.
      6. Charge the batteries and securely re-attach props and batteries before next flight.
  • Replacement parts can be purchased from the PCS website at
The drone flies erratically
The drone descends in a spiral when it returns to home