# Can't find April tag settings in system image 3.3.0

Source: https://forum.modalai.com/topic/399/can-t-find-april-tag-settings-in-system-image-3-3-0
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2021-08-17 17:08:46 UTC by erivera
Replies: 1 · Views: 391

## erivera · 2021-08-17 17:08:46 UTC

They used to be in the voxl-vision-px4.conf file within /etc/modalai/ folder, but since I upgraded to the latest system image 3.3.0 and ran the new wizard for voxl-vision-px4, the parameters for enabling and configuring the April tags are no longer there. Did they get moved somewhere else?

Thanks.
![voxlvision_3_3_0.png](https://forum.modalai.com/assets/uploads/files/1629220062969-voxlvision_3_3_0.png)

## Reply by Guest · 2021-08-17 20:32:49 UTC

The vvpx4 option is the second to last one there: "en_tag_fixed_frame". In order to use tag localization, make sure the voxl-tag-detector service is running. The config file for this is at ```/etc/modalai/voxl-tag-detector.conf``` and you can specify the tag locations at ```/etc/modalai/tag_locations.conf```