# unable to calibrate imu on RB5

Source: https://forum.modalai.com/topic/3696/unable-to-calibrate-imu-on-rb5
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2024-08-02 17:54:18 UTC by Prabhav Gupta
Replies: 2 · Views: 640

## Prabhav Gupta · 2024-08-02 17:54:18 UTC

Re: [voxl-imu-server is Not Running](/topic/3308/voxl-imu-server-is-not-running)

I am facing a similar issue as in the above topic. The IMU server on my RB5 is enabled, but not running.

I recently upgraded the sdk version on the drone, and hence need to calibrate the IMU again.

`systemctl start voxl-imu-server` and `systemctl start voxl-px4-imu-server` both do not work as expected.

Any help would be appreciated. Thanks!

## Reply by Prabhav Gupta · 2024-08-06 19:57:14 UTC

@Prabhav-Gupta 

Anyone, any clues for this?

Thanks!

## Reply by Eric Katzfey (ModalAI staff) · 2024-08-07 14:56:50 UTC (in reply to Prabhav Gupta)

@Prabhav-Gupta The RB5 does not have a second IMU like the VOXL 2 does. So voxl-imu-server is only applicable for VOXL 2, not RB5.