MCHOSE UT98 FAQ & Troubleshooting

1. Quick Troubleshooting Checklist

Before moving to a specific section, try these basic checks:

1. Confirm the mode switch is set to the connection method you are using.
2. If using wireless mode, make sure the keyboard has sufficient battery power.
3. Reconnect the USB cable or 2.4G receiver.
4. Try another USB port and connect directly to the computer during troubleshooting.
5. Test another connection mode if available.
6. Confirm the UT98 is in the correct Windows / macOS / iOS / Android mode.
7. If a key or light behaves unexpectedly, hold Fn + Esc for approximately 3 seconds to restore defaults.

2. System Modes & Shortcuts

Why are my modifier keys different from what I expect?

The UT98 may be in a different system mode. Use Fn + W for Windows, Fn + E for macOS, Fn + Q for Android, or Fn + R for iOS.

Why are Win and Alt different on my Mac?

In macOS mode, the keyboard changes the modifier layout so it more closely matches Mac conventions. The Alt key functions as Command, and the Windows/Alt functions are reassigned accordingly.

Why does Fn + F1–F12 behave differently after I switch systems?

Windows mode uses F1–F12 as standard function keys and places multimedia actions on the Fn layer. macOS, iOS, and Android modes provide supported multimedia actions with a single F-key press; hold Fn when you need the standard F1–F12 key values.

Why does a multimedia shortcut not work?

First confirm the system mode. Then test whether the same media function works directly in the operating system or application. Some shortcuts depend on host-device support and the currently active app.

3. USB Wired Troubleshooting

The UT98 does not respond in wired mode

1. Set the mode switch to OFF.
2. Reconnect the USB Type-C cable at both ends.
3. Try another USB port.
4. Connect directly to the computer instead of through a hub or dock.
5. Try another compatible data cable if available.
6. Test the keyboard on another computer if possible.

The keyboard charges but does not type over USB

A USB cable can provide power without carrying data. Confirm that you are using the included cable or another known data-capable USB cable, then reconnect the keyboard in OFF wired mode.

The keyboard disconnects intermittently while wired

Check both cable connections, try another USB port, and avoid loose adapters or extension cables. If the issue occurs across multiple ports, cables, and computers, contact MCHOSE Support.

4. 2.4G Troubleshooting

The 2.4G receiver does not connect automatically

1. Set the mode switch to 2.4G.
2. Remove and reconnect the receiver.
3. Try another USB port.
4. Check the keyboard battery level.
5. If needed, manually pair the receiver using Fn + ~.

How do I manually re-pair the 2.4G receiver?

1. Disconnect the receiver.
2. Keep the keyboard in 2.4G mode.
3. Hold Fn + ~ for approximately 3 seconds until the indicator flashes rapidly.
4. Insert the receiver into the computer.
5. Keep the keyboard close to the receiver until pairing is confirmed.

The 2.4G connection disconnects or feels unstable

1. Reconnect the receiver.
2. Try a different USB port or receiver placement.
3. Keep the keyboard and receiver within a normal operating range.
4. Move the receiver away from crowded wireless equipment or high-bandwidth USB devices when practical.
5. Check the battery level.
6. Re-pair the receiver if necessary.

5. BT Pairing & Troubleshooting

How do I pair the UT98 over BT?

1. Set the mode switch to B.
2. Hold Fn + 1, Fn + 2, or Fn + 3 until the selected channel flashes rapidly.
3. Open BT settings on the host device.
4. Select MCHOSE UT98.
5. Complete pairing.

How many BT devices can the UT98 remember?

Up to three BT channels can store pairing information. Use Fn + 1, Fn + 2, and Fn + 3 to select the corresponding stored device.

The UT98 does not reconnect to a previously paired BT device

1. Make sure the mode switch is set to B.
2. Confirm that BT is enabled on the previously paired device.
3. Select the correct UT98 BT channel.
4. If necessary, remove / forget the UT98 from the host device and pair it again.
5. Try another BT channel to rule out a stored-pairing issue.

BT feels slower than 2.4G

BT prioritizes broad wireless-device compatibility and multi-device switching. For applications where lower input latency is more important, use the included 2.4G receiver or USB wired mode.

6. Battery & Charging

How do I check the remaining battery level?

While using the keyboard wirelessly without USB connected, press Fn + B to place the ambient light bar in battery-display mode. A full green bar indicates a high battery level; the green display decreases with remaining charge; a full red indication represents low battery.

What is the UT98 battery capacity?

The current official UT98 product specification lists a 10,000mAh battery.

How do I charge the keyboard?

1. Connect the UT98 to a computer with the included USB cable.
2. The ambient light bar shows a flowing-light effect while charging.
3. When charging is complete, the light bar remains green.

Can I use the keyboard while charging?

Yes. The source guide states that the UT98 can continue operating while it is charging.

Why does the ambient light bar change when I connect USB?

The ambient light bar is also a charging-status indicator. Its lighting behavior can change automatically when USB power is connected.

What charging accessories should I use?

Use a compliant USB power source and a suitable cable. Avoid unsuitable high-voltage adapters, poor-quality power accessories, and high-temperature environments while charging.

7. Keyboard Lighting

How do I change the keyboard lighting mode?

Press Fn + \.

How do I change the keyboard lighting color?

Press Fn + Tab. Some animated effects use predefined colors and may not support manual color selection.

How do I change brightness?

Use Fn + ↑ to increase brightness and Fn + ↓ to decrease brightness.

How do I change lighting speed?

Use Fn + ← to decrease effect speed and Fn + → to increase it.

A lighting effect looks different from the color selected on screen

Physical RGB appearance can vary with LED characteristics, keycap light transmission, room lighting, monitor color calibration, and viewing angle. If one LED is clearly unlit or substantially different from surrounding keys under the same static color, reset the keyboard and test again before contacting support.

8. Ambient Light Bar

How do I change ambient light bar modes?

Press Fn + Right Shift.

How do I change the ambient light bar color?

Press Fn + /.

How do I adjust ambient brightness and speed?

Press Fn + Right Alt to cycle brightness and Fn + Right Ctrl to cycle effect speed.

Why can't I freely change the ambient color while viewing battery status?

Battery-display mode is used to communicate battery status. Exit battery-display mode before using the ambient light bar as a normal lighting zone.

9. Volume Roller & Multimedia

What does the volume roller do?

Action	Function
Scroll up	Increase volume
Scroll down	Decrease volume
Press	Mute / unmute

The roller works but a media key does not

The roller and Fn multimedia shortcuts use operating-system media controls. Confirm the correct UT98 system mode and verify that the target application accepts the same media command.

Why does F1–F12 control media instead of standard F-keys?

This is expected in macOS, iOS, and Android modes. Hold Fn while pressing the F-key to send the standard F1–F12 key value.

10. Sleep & Wake

Why does the keyboard lighting turn off after I stop typing?

In 2.4G or BT mode, the UT98 enters a power-saving state after approximately 1 minute of inactivity.

How do I wake the keyboard?

Press any key.

The first key after sleep feels delayed

A wireless keyboard may require a short moment to restore the host connection after power-saving sleep. If wake delays become frequent, check battery level, try 2.4G or wired mode, and review the host device's USB / BT power-management settings.

11. Keys, Switches & Hot-Swap

A key does not respond

1. Reset the keyboard using Fn + Esc for approximately 3 seconds.
2. Test the same key in another connection mode.
3. Remove and reseat the affected hot-swappable switch if you are comfortable doing so.
4. Test with a spare compatible switch if available.
5. If the issue remains on the same physical key, contact MCHOSE Support.

A key feels stuck or does not return normally

1. Disconnect the keyboard.
2. Remove the keycap.
3. Check for dust or debris around the switch.
4. Reseat or replace the switch.
5. For larger stabilized keys, make sure the stabilizer moves freely.

Can I replace the switches?

Yes. The UT98 is hot-swappable. Use compatible mechanical switches and insert them straight into the socket after confirming that the pins are aligned.

Why do larger keys sound different from letter keys?

Space, Enter, Shift, and other stabilized keys use different keycap sizes and stabilizer structures, so their acoustic character can differ from standard letter keys. If a key develops a sudden scraping, rattling, or inconsistent feel, inspect the keycap, switch, and stabilizer.

12. M HUB & Web Driver

Does the UT98 support M HUB?

Yes. The UT98 is currently listed as a supported mechanical keyboard in the M HUB device ecosystem and supports both M HUB and the Web Driver.

M HUB does not detect the UT98

1. Switch the UT98 to OFF wired mode.
2. Reconnect the USB cable.
3. Try another direct USB port.
4. Restart M HUB.
5. If using Web Driver, use Chrome or Edge and re-grant HID access.
6. Close the other M HUB version so Web and Desktop are not running at the same time.

Can I use the M HUB Desktop Driver on macOS?

No. Current MCHOSE guidance specifies that macOS users should use the Web Driver. The desktop M HUB application is for Windows 10 and above.

Can I use M HUB on Linux?

The current UT98 product page lists Linux as a supported keyboard operating system, but current M HUB support guidance states that the M HUB driver itself is not supported on Linux.

The Web Driver cannot connect to the keyboard

1. Use Chrome or Edge.
2. Check the browser's HID permissions.
3. Reconnect the keyboard.
4. Refresh the Web Driver page.
5. Select the UT98 again when the device prompt appears.

Music-reactive lighting does not work

Current M HUB guidance indicates that some music-reactive / RGB sync functions require the Desktop Driver and are not fully available through the Web Driver. Use the Windows desktop application and keep it running while a live audio-reactive effect is active.

13. macOS / iOS / Android

What shortcut selects macOS mode?

Fn + E.

What shortcut selects Android mode?

Fn + Q. The current official UT98 function-card/manual artwork uses Fn + Q.

What shortcut selects iOS mode?

Fn + R.

Some characters are wrong on my Mac

Confirm the UT98 is in macOS mode, then check the Mac keyboard layout / keyboard type. If necessary, select the appropriate ANSI U.S. layout for the physical keyboard.

Caps Lock changes the input source on my Mac

This behavior can be controlled by macOS. In System Settings, review Keyboard → Input Sources and disable the option that uses Caps Lock to switch input source if you do not want that behavior.

14. Reset & Firmware

How do I restore factory defaults?

Press and hold Fn + Esc for approximately 3 seconds.

How do I update UT98 firmware?

Use the official M HUB firmware section when an update is offered for the connected UT98. Use a stable connection and avoid disconnecting the keyboard during the process.

What should I do if a firmware update fails?

1. Reconnect the keyboard in direct USB wired mode.
2. Restart M HUB.
3. Try another direct USB port.
4. Retry only with firmware offered for the connected UT98.
5. If the problem continues, contact MCHOSE Support.

15. Product Information

What layout is the UT98?

It uses a 98% compact layout that retains a dedicated numeric keypad and function row while reducing unused spacing compared with many traditional full-size keyboards.

What are the dimensions and weight?

Current official specifications list approximately 401.8 × 147.2 × 42.5mm, a front height of approximately 18.8mm, and a weight of approximately 1.25kg.

What switch options are available?

Current official product information lists Silent Peach V3 and Icy Creamsicle linear switch options.

Does the UT98 have onboard memory?

Yes. The current official product specification lists onboard memory. The number of profiles and the exact settings stored should be confirmed in the current UT98 M HUB interface.

What plate and PCB does the UT98 use?

Current specifications list a PC flex-cut plate and a 1.2mm per-key flex-cut, south-facing PCB.

16. Still Need Help?

If the issue continues, contact MCHOSE Support at support@mchose.store. To help the support team diagnose the issue efficiently, include the product model, connection mode, host device, operating system, M HUB version, firmware version if available, a short issue description, and photos or a video when useful.