Sorry to hear that, about your experience with your Samsung Galaxy device having issues with auto-rotate not functioning and we apologize for the inconvenience it caused you.
Auto rotate allows your device's screen to automatically adjust and rotate depending on how you hold it. For example, if you turn your phone sideways, the screen will automatically switch to landscape mode. Follow the steps below to enable the Auto rotate feature.
Step 1. Swipe down on the screen to open the Quick panel.
Step 2. If a gray Portrait or Landscape mode icon is displayed, tap the gray icon to activate Auto rotate. The icon will glow blue when enabled.
If the Auto rotate feature is already activated, you don't need to select anything.
Note: If the app you are using doesn't support an orientation, it will not change when you rotate your phone. Not all apps work in both Portrait and Landscape mode.
If that doesn't work, you can submit an error report through Samsung Members app as follows:
Step 1. Long press Samsung Members icon on Apps screen and tap Error reports.
Step 2. Tap OK on agreement popup to send system log data.
Step 3. Select Symptom category "Settings/System".
Step 4. Describe the problem in details and SEND.
If the problem persists, immediately bring your device to the nearest Samsung Authorized Service Center. Rest assured that our Samsung Engineers/Technicians are competent to assess your device and offer solutions to restore it up to optimum performance.
For more assistance, you may contact us on our online Samsung support channels below.