If your Galaxy S6 or Galaxy S6 Edge device fell victim to a system toggles bug that Samsung has yet to explain, there is now a fix available. According to a few users in forums and on social media, system toggles for mobile data, mobile hotspot, and private hotspot simply disappeared one day, and Samsung stated they were working on a fix.
The fix is pretty cool, though. You download the QuickPanel Restore app from Galaxy Apps, run it, it fixes the issue, then it asks you to uninstall it. Once the app has completed its job, your system toggles should have returned, and then you will have no need for it.
Even though the fix is neat, we wish Samsung would explain what happened in the first place.
To grab this app and bring back those valuable system toggles, click the following link from your Galaxy device.