Frequently Asked Questions

D2323 Mars II Pro FAQ
Display Related
How do I use the keystone correction?
Mars II Pro supports both automatic (vertical ±40°) and manual (horizontal ±40°) keystone correction.
When adjusting the horizontal keystoning, go to Settings>Projector Settings to turn off auto keystone
correction and adjust manually.
How to I activate Mars II Pro's autofocus?
You can slightly move the device or press and hold the "OK" button for 2-3 seconds to trigger the
autofocus. If necessary, you could press the volume +/- buttons to manually adjust the focus.
How to do zoom the image in and out? Mars II Pro doesn't have a zoom function.
Adjusting the Brightness
Mars II Pro will automatically switch to a lower brightness mode when it is not charged in order to save
battery. Battery saving mode is the default mode for Mars II Pro. If you want a brighter image, please
choose Standard Mode: Settings>Projector Settings>Image Mode>Standard Mode
How do I adjust the color display?
If you find the color temperature is too slightly blue, please adjust color temperature by going to:
Settings>Projector Settings>Color Temperature, and choose between “normal”, “cool”, and “warm”.
What's Mars II Pro's max projection range?
For the best results, the projection surface should be white and flat. The distance between Mars II Pro
and the projection surface must be a minimum of 1 meter (39.4 inches) and a maximum of 3 meters
(118 inches).
Operation Related
How do I screen mirror on Mars II Pro?
IOS Devices:
1. Make sure your phone and Mars II Pro are connected to the same Wi-Fi network
2. Enable the Screen Mirroring on your iOS device in the control center
3. Once Mars II Pro shows up on your phone's Screen Mirroring List, select it to connect
Android Devices:
a. Switch on Mars II Pro and go to Settings>General>Screen Mirroring>Android
b. Enable the Screen Mirroring on your phone via the pull-down menu, Settings, or WLAN settings
c. Select ""Nebula-xxxxxx"" to connect
Please note that copyrighted content won't be able to be mirrored or cast.
How do I play videos when no Wi-Fi is
available?
- Download the videos to a USB drive
- Plug the USB drive into Mars II Pro to play
How do I pair the remote with Mars II Pro?
Mars II Pro's remote is an IR remote, so you will need to point it to the IR receiver (black dot) on the
device to control the Capsule Max.
How do I switch to Bluetooth speaker mode? You can press the Bluetooth switch button on the device to switch.
Software Related
How do I control Netflix on my Mars II Pro? It's recommended to use our Nebula Connect app's mouse mode to control.
How to download Nebula Connect app? You can download it from Google Play Store on your Android devices or the App Store on iOS devices.
How do I use the Nebula Connect app？
1. Make sure that your phone's Bluetooth is turned on
2. Open the Nebula Connect app on your phone and click the "+" on the top right to connect with Mars
II Pro
3. Once connected, you can select either mouse mode or controller mode to operate
How do I upgrade the firmware? Go to Settings>Upgrade>Check Updates
How do I recover/reset Mars II Pro? Go to Settings>General>About>Recovery
Can I sideload Android apps to my Mars II
Pro?
Yes, you can download the APK file of the app to a USB drive and plug the USB drive into Mars II Pro
to install.
External Device
connection
related
What USB drive formats are supported? FAT32/NTFS/exFAT
Does Mars II Pro support HDCP? Yes. We are a member of HDMI, and the interface of HDMI supports HDCP protocol.
What are the supported interfaces? USB/HDMI/Bluetooth
What is the maximum supported hard drive
size?
Up to 2TB