When you have auto rotate turned off, your phone’s rotation is locked, probably to portrait mode at first. However, as you rotate your phone within an app, you’ll get a rotation suggestion at bottom-right corner of the phone that allows you to flip the rotation. If you tap the button, it then flips the orientation and locks it to that until you rotate back and tap that suggestion button again.

// Option A //

To download Dynamic Rotation mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Dynamic Rotation mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Dynamic Rotation from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Dynamic Rotation in HappyMod App.