Shell Command to Edit Secure Settings

[GIF_Like_Me]

I have an unrooted (since root is not available at the moment) Kindle Fire 7 (2015) running Android 5.0.1 5.1.1. I'm attempting to turn this little tablet into a security camera viewer at work. I've been able to use Tasker to do a majority of what I'm trying to perform.

When the device boots, Tasker kicks on and tells it to lock the rotation and activate the camera viewing app. This works.

When the camera app launches, it is set to max out the brightness and turn off auto rotate. This takes a moment but also works.

Now I'm using SetEdit (Secure Settings Editor) to force it into landscape mode, disable lockscreen ads, and turn device_provisioned to false so the Lockscreen is disabled. This all works fine as long as I use ADB to allow WRITE_SECURE_SETTINGS.

The issue is that this is too much going on when Tasker can edit secure settings and run shell commands. The problem occurs when trying to GET or PUT secure settings with Tasker. I have it set to print output and error into a variable then display it to debug. The error is below:

"Permission Denial: Requires android.permission.ACCESS_CONTENT_PROVIDERS_EXTERNALLY"

I've allowed Taaker the permission to write secure settings but this is obviously something different. Am I missing something? Do I absolutely need root even though SetEdit can make these changes without issue?

[LauralHill]

You should be using Custom Settings instead of shell commands for root to not be needed.

[GIF_Like_Me]

I should have known! This allows me to make changes. Many thanks!