Hello! I understand your concern about downgrading your Mi 11T Hyper OS to MIUI due to the off-screen feature missing in the game booster. Downgrading your device's operating system can be a bit complicated and may void your warranty, so proceed with caution. Here are the general steps you can follow to downgrade your Mi 11T Hyper OS to MIUI:
1. Unlock Bootloader: Before you can downgrade, you may need to unlock the bootloader of your device. You can do this by following the official instructions provided by Xiaomi.
2. Download MIUI ROM: Visit the official Xiaomi website or forums to download the MIUI ROM for your specific Mi 11T model. Make sure to download the correct ROM to avoid any issues during the downgrade process.
3. Backup Your Data: It's crucial to back up all your important data, including photos, videos, contacts, and documents. Downgrading your OS can potentially erase all data on your device.
4. Enable Developer Options: Go to Settings > About phone and tap on the MIUI version multiple times until you see a message saying you are now a developer. Then enable USB Debugging in the Developer Options.
5. Install ADB and Fastboot: You will need to install ADB and Fastboot on your computer to proceed with the downgrade process.
6. Flash MIUI ROM: Connect your Mi 11T to your computer, boot it into Fastboot mode, and use ADB commands to flash the MIUI ROM onto your device. Follow the specific instructions for flashing a ROM on Xiaomi devices.
7. Reboot and Set Up: Once the flashing process is complete, reboot your device and set up MIUI as you would with a new phone. Make sure everything is working correctly.
Please note that downgrading your device's OS can be risky and may lead to potential issues if not done correctly. It's always a good idea to do thorough research, follow official guides, and proceed with caution. If you're unsure about any step, it's best to seek help from experienced users or Xiaomi support.