Nimbostratus
Employee
You can do this in the Access Poilcy -> Customization section...
- Go to "Advanced Customization" view
- Under Branding expand "Access Profiles" -> "your profile name" -> "Common" -> "Page Header Settings"... in this section you will see "Header left image (Full Size)" and "Header left image (Mobile Device size)"... you will need to upload your image and set it under those settings... save... apply policy and you should now see your logo on both formats.
Please let me know if this doesn't work for you or if you are having a different issue.
Seth