iPhone screen rotation due to automatic rotation on or sensor problems, 2. You can set the locked vertical screen direction, 3. Check whether the "Tap Back" in the auxiliary function conflicts, 4. Restart, update the system or reset the settings to resolve software failures. The iPhone screen continues to rotate mainly because the automatic rotation function is enabled. If it rotates unexpectedly, you can check and turn on the vertical screen lock; at the same time, make sure that the "Tap the Back" function does not trigger the rotation operation; if the problem continues, try restarting the device, updating iOS or resetting all settings. If it still cannot be solved, there may be hardware problems and need to contact official support to handle it.

Your iPhone screen keeps rotating because the auto-rotate feature is turned on and your phone's acceleraterometer detects movement, then shifts the display accordingly. This is normal behavior — but if it's happening too often or unintentionally, there are a few common reasons and fixes worth checking.

1. Auto-Rotate Is Enabled (and That's Fine)

The most straightforward reason your iPhone screen rotates is that the built-in feature is active. When you turn your phone sideways, the screen adjusts to landscape mode automatically.

• Go to Settings > Display & Brightness > Auto-Brightness and make sure it's enabled.
• You can also check in the Control Center : swipe down from the top-right corner (or top of the screen on newer iPhones), and look for the Portrait Orientation Lock button. If it's not highlighted, rotation is allowed.

If you're fine with occasional rotation when watching videos or browsing, leave it on. But if it bothers you while reading or scrolling, consider locking the orientation.

2. Portrait Orientation Lock Isn't Activated

Sometimes, people expect their screen to stay still but forget that the lock isn't on. Unlike Android, iOS doesn't have a permanent "rotation off" setting — instead, you toggle it via the Control Center.

To lock screen orientation:

• Open the Control Center
• Tap the Portrait Orientation Lock icon (a small phone with a lock symbol)

This locks your screen in portrait mode until you disable it again. It's especially useful if you're lying down and don't want the screen flipping every time you shift slightly.

3. Accessibility Shortcut Might Be Conflicting

iOS has an accessibility feature called “Back Tap” that can trigger actions like opening the Control Center or toggling settings. If this is set up and you tap the back of your phone without realizing it, you might be switching rotation modes accidentally.

To check:

• Go to Settings > Accessibility > Touch > Back Tap
• See if any action here could interfere with screen rotation
• If so, either change the action or disable it

Also, some third-party cases or grips may cause unintended taps or movements that confuse the phone's sensors.

4. Sensor Issues or Software Bugs

In rare cases, your iPhone might rotate unexpectedly due to a software glitch or hardware problem with the gyroscope or accelerometer.

Try these steps:

• Restart your iPhone — sometimes a quick reboot clears minor bugs
• Make sure your iOS is up to date ( Settings > General > Software Update )
• If the issue continues, try resetting all settings ( Settings > General > Transfer or Reset iPhone > Reset > Reset All Settings ) — note: this won't delete personal data

If none of those work, it might be a hardware issue. In that case, visiting Apple Support or an authorized service center makes sense.

Screen rotation problems usually come down to settings rather than serious issues. Most of the time, toggling the Portrait Orientation Lock or checking your Auto-Brightness setting will do the trick. If not, a quick software update or reset should handle it.

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