Applies To
Applies to: Classic S4, Classic S4+
What the Remote Can Do
With the CommBox remote control, you can:
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Turn the screen on or off
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Adjust the volume
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Switch between HDMI, USB-C, and OPS inputs
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Open settings or menus
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Lock the screen or touch input
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Launch the whiteboard or call up tools like the freeze screen
Remote Control Button Guide
Here’s a quick overview of key buttons and what they do:
| Button | Function |
|---|---|
| Power | Turn the screen on/off or into standby |
| Mute | Toggle audio on/off |
| VOL+ / VOL- | Raise or lower the volume |
| CH+ / CH- | Not used in current CommBox models |
| Input | Open the input source list (HDMI, USB-C, OPS etc.) |
| Home | Return to the Android home screen |
| Menu | Open the settings menu |
| Back | Go back to the previous screen or close pop-ups |
| Whiteboard | Launch the CommBox Whiteboard app |
| Lock / Unlock | Lock or unlock touch and front panel buttons |
| Freeze | Freeze the current screen image while allowing continued device use |
| Numeric keys (0–9) | Use for input naming or navigation if supported |
| F1–F12 | Functions only available when using a connected Windows OPS PC |
Special Function Keys
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Alt+Tab / Alt+F4 / Space / Start
These keys only work when using a connected Windows OPS PC and mirror common keyboard shortcuts. -
Green / Yellow / Red / Blue buttons
These are used for quick functions like accessing settings or tools depending on the screen’s current input or app.
💡 Tip: If you're not using an OPS PC, Windows-specific buttons will not have any effect.
Using the Remote Effectively
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Point the remote at the infrared sensor on the bottom-left of the CommBox bezel.
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Keep the remote within 5 metres and avoid obstructions like furniture or whiteboard accessories.
Battery Information
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Uses 2 x AAA batteries (included in the box)
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Replace if the remote becomes unresponsive
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Store batteries safely and remove them if the remote won’t be used for long periods
Troubleshooting / What to Do If It Doesn’t Work
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No response?
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Check if the screen is powered on via the main switch at the back
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Make sure the batteries are inserted correctly and not flat
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Try pressing the Power button directly on the screen to verify screen status
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Wrong input selected?
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Press the Input button and use the arrows to choose the correct source
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Touch input not working after switching?
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Make sure the USB touch cable is connected (if using HDMI input)
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