# Dash board no response of QGC

Source: https://forum.modalai.com/topic/811/dash-board-no-response-of-qgc
Category: Flight Core and Legacy VOXL (https://forum.modalai.com/category/9/flight-core-and-legacy-voxl)
Tags: flight-core
Posted: 2022-03-21 01:38:16 UTC by Nathan Ni
Replies: 2 · Views: 927

## Nathan Ni · 2022-03-21 01:38:16 UTC

when I connect flight core to QGC ground station, there is no response on the dash board, using mission planner I can find the info of sensors, but the dash board no response at all.

Please help me found the problem might be ,THX!

![mmexport1647825529539.png](https://forum.modalai.com/assets/uploads/files/1647826653457-mmexport1647825529539.png)

## Reply by modaltb (ModalAI staff) · 2022-03-21 16:58:33 UTC

Hi @Nathan-Ni ,

Can you check `ekf2 status` via the NSH terminal?

I wonder if you have a magnetometer or not?  Flight Core has no on board mag and, by default, ekf2 doesn't initialize without a mag and then you will get no attitude (roughly).

## Reply by Nathan Ni · 2022-03-28 06:57:41 UTC (in reply to modaltb)

@modaltb Thank you for your answer, it is true that the problem is caused by the lack of magnetic compass.