# Water Linked DVL A50 Support

**URL:** <https://discuss.bluerobotics.com/t/water-linked-dvl-a50-support/9123>\
**Category:** Sonar and Acoustics\
**Tags:** water-linked, dvl, positioning\
**Created:** [August 5, 2020, 9:55am UTC](https://discuss.bluerobotics.com/t/water-linked-dvl-a50-support/9123 "2020-08-05T09:55:44Z")\
**Posts on this page:** 1\
**Showing post:** 44

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**Author:** ![Jnyberg](https://avatars.discourse-cdn.com/v4/letter/j/8491ac/32.png) [@Jnyberg](https://discuss.bluerobotics.com/u/Jnyberg)\
**Post date:** [April 20, 2022, 9:33pm UTC](https://discuss.bluerobotics.com/t/water-linked-dvl-a50-support/9123/44 "2022-04-20T21:33:02Z")

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Thank you for that. I updated to 4.1 beta and got the DVL connected. Now when I connect to ROV, the DVL and Ping 360 Sonar ae working, but position hold is still acting up and depth hold is not working at all. When trying to use position hold the sub starts rotating around. When I try to use depth hold, QGroundControl says that the depth sensor is not connected. Here is the error message for that:  
 ![image](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/5/57ba022172b929e16945e244dadb24520687d58e.png)

When looking at the depth on the viewer, it is not changing at all either. The depth is titled as “Depth” but is actually registered under “altitude tracker”. Here i what that looks like:

 ![image](https://us1.discourse-cdn.com/flex019/uploads/bluerobotics/original/2X/e/ebc35ca113b115468d6aeb4b868340290a121d98.jpeg)

Any insight at what I should do from here?

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_[View the full topic](https://discuss.bluerobotics.com/t/water-linked-dvl-a50-support/9123)._