Setting up a new projector does not have to be complicated. This Magcubic HY450GT How-to Guide covers the most common setup and usage tasks, from pairing the Bluetooth remote and connecting Wi-Fi to adjusting focus, screen size, keystone correction, display settings, screen mirroring, casting, HDMI, and USB devices.
Each tutorial below is based on the actual HY450GT operation process, so you can follow the steps directly on your projector.
1. How to Pair Your Bluetooth Remote
On the first startup, the remote pairing screen appears automatically.
1. Press and hold both the Return and Home buttons for 5 seconds.
2. Wait until the indicator light flashes.
3. When a ✓ appears on the projector screen, the remote is paired and ready to use.
Tip: Keep the remote close to the projector during the pairing process.
2. How to Connect the HY450GT to Wi-Fi
A Wi-Fi connection allows the projector to access online features and network-based functions.
1. Open Quick Settings → Wi-Fi and turn Wi-Fi on.
2. Select your Wi-Fi network and press OK.
3. Use the on-screen keyboard to enter your password.
4. Use the Up Arrow for capital letters when necessary.
5. Select √ to confirm and connect.
If the connection fails, check that the password is correct and that the projector is within a suitable range of the router.
3. How to Add a Bluetooth Device
You can connect compatible Bluetooth accessories such as headphones, speakers, or other supported devices.
1. Press the Dongle Setting button on the remote.
2. Turn Bluetooth on.
3. Select Pair remote or accessories.
4. Wait for available Bluetooth devices to appear.
5. Select your device and press OK to pair.
Keep the Bluetooth accessory close to the projector during pairing.
4. How to Change Projection Mode
The HY450GT supports different projection orientations for different installation positions.
1. Press the Projector Settings button.
2. Go to Display → Projection Mode.
3. Select the mode that matches your setup:
o Front
o Rear
o Front Ceiling
o Rear Ceiling
Choose the correct mode after deciding whether the projector is placed in front of, behind, or above the screen.
5. How to Adjust Keystone Correction
Keystone correction helps correct image distortion when the projector is not perfectly aligned with the screen.
1. Press the Projector Settings button and select Display.
2. Tilt or move the projector vertically or horizontally to trigger Auto Keystone Correction.
3. For more precise adjustment, turn off Auto Keystone Correction and select Manual Correction.
4. Press OK to select a corner.
5. Use the Arrow buttons to adjust the selected corner.
6. Press Return when finished.
Tip: For the best image quality, place the projector as close to perpendicular to the screen as possible before using keystone correction.
6. How to Focus Your Projector
The HY450GT provides automatic and manual focus adjustment.
1. Press the Projector Settings button and go to Display.
2. Make sure Auto Focus is enabled.
3. Move the projector slightly to trigger automatic focusing.
4. A checkerboard pattern will appear during the focusing process.
5. For fine adjustment, use the Focus buttons on the remote.
If the image remains soft, check that the projection surface is clean and that the projector is positioned at a suitable distance.
7. How to Adjust the Projection Size and Ratio
You can change the image ratio and size without physically moving the projector.
1. Press the Projector Settings button.
2. Open Display.
3. Select Scale Mode to switch between 16:9 and 4:3.
4. Select Screen Zoom.
5. Use the Arrow buttons to adjust the image size.
Use screen zoom when you need to fine-tune the projected image while keeping the projector in its current position.
8. How to Use Obstacle Avoidance
Obstacle Avoidance helps the projector detect objects that may interfere with the projected image.
1. Press the Projector Settings button.
2. Go to Display → Advanced Settings.
3. Select Obstacle Avoidance.
4. Turn the feature ON.
The projector will automatically detect and avoid obstacles within its projection area.
9. How to Use Screen Recognition
Screen Recognition can automatically adjust the projected image to fit a compatible projection screen.
1. Open Projector Settings.
2. Go to Display → Advanced Settings.
3. Turn on Screen Recognition.
4. Make sure the projection screen has a black border.
5. Make sure the projected image extends beyond the screen.
6. Move the projector slightly to trigger automatic correction.
The projector will then detect the screen and automatically fit the image.
10. How to Adjust Picture Settings
The HY450GT provides several picture controls for different viewing preferences.
1. Press the Projector Settings button.
2. Open Picture.
3. Under Picture Mode, choose Standard, Vivid, Soft, or User.
4. In User Mode, adjust Contrast, Brightness, Saturation, and Sharpness.
5. Under Color Temperature, choose Standard, Cold, or Warm.
6. Under Brightness, select Eco, Standard, or Highlight.
For everyday viewing, start with Standard mode and adjust individual settings based on your room and content.
11. How to Download Apps
To install an available app on the HY450GT:
1. Open Apps from the home screen.
2. Find the app you want to install.
3. Open the app's details page.
4. Select Install.
Make sure the projector is connected to the internet before downloading apps.
12. How to Mirror Your Android Screen
You can mirror a compatible Android phone using the Google Home app.
1. Connect the projector and your Android phone to the same Wi-Fi network.
2. Download and open Google Home on your phone.
3. Select your projector.
4. Tap Cast my screen → Cast screen.
5. Confirm by selecting Start now.
6. Your phone screen will appear on the projector.
Note: Some DRM-protected or copyrighted content from streaming services may not support screen mirroring.
13. How to Mirror Your iPhone Screen
To mirror an iPhone, first install AirScreen on the projector.
1. Install and open AirScreen on the HY450GT.
2. Connect your iPhone and projector to the same Wi-Fi network.
3. Swipe down from the top-right corner of your iPhone to open Control Center.
4. Tap Screen Mirroring.
5. Select the projector.
Your iPhone screen should then appear on the projected display.
14. How to Mirror Your Windows Screen
For Windows PCs, use an HDMI connection.
1. Connect your Windows PC to the HY450GT using an HDMI cable.
2. Press the Source button on the remote.
3. Switch the projector to HDMI.
4. Your Windows screen should appear on the projector.
If there is no image, check that the HDMI cable is securely connected and that the correct HDMI source is selected.
15. How to Cast from Apps on Your Phone
For apps that support casting, you can send video playback to the projector without continuously mirroring your entire phone screen.
1. Connect your phone and projector to the same Wi-Fi network.
2. Open a casting-supported app and play a video.
3. Tap the Cast icon.
4. Select your projector from the device list.
5. Once connected, the projector will play the video independently.
You can leave the app or lock your phone without stopping playback, depending on the casting app and content.
16. How to Use a USB Storage Device
The HY450GT can access files stored on a compatible USB flash drive.
1. Install the File Manager app on the projector and allow the required permissions.
2. Insert a USB flash drive into the projector's USB port.
3. Open the storage folder from the pop-up window.
4. Browse your files using File Manager.
The HY450GT supports USB flash drives up to 512 GB formatted as FAT32 or NTFS. External hard drives are not supported.
HY450GT Setup Tips
For a smoother setup experience:
· Connect the projector to Wi-Fi before using network-based features.
· Position the projector as straight toward the screen as possible before applying keystone correction.
· Use Auto Focus first, then use manual Focus buttons for fine adjustment.
· Use Screen Recognition with a screen that has a visible black border.
· Keep Bluetooth devices close to the projector during initial pairing.
· For HDMI connections, make sure the correct input source is selected.
Final Takeaway
The Magcubic HY450GT provides multiple ways to customize your setup, connect devices, adjust the projected image, and access smart features. For the best results, start with correct projector placement, connect to Wi-Fi, run Auto Focus and Keystone Correction when needed, and then fine-tune the display settings for your room.
In short: position it correctly, connect your devices, adjust the image, and use the built-in automatic features to simplify setup.
