7. Support
7.1 Simple troubleshooting method
Issue
Inspection Method
Solution
Not working
Check whether the USB
interface is powered
normally
The USB interface is powered normally
Can not boot
Bluetooth headset
battery is low
The keystroke is not long
enough
Connect to
computer and speak
silently
Check the bluetooth
headset option
In the lower right corner of the computer desktop,
right-click the speaker, click the playback device
option, and check whether the device UH Max 75 is
set as the default device
Check the USB Dongle
option
In the lower right corner of the computer desktop,
right-click the speaker, click the playback device
option, and check whether the device UH BTD75 is set
as the default device
Is the Bluetooth
function of the mobile
phone turned on?
The bluetooth headset is
not properly connected
to the phone
Use the Bluetooth headset charging cable to charge the
headset and then try to turn it on
The boot time of the Bluetooth headset is to press and
hold the mute button for 3 seconds
Bluetooth
headset and mobile
phone cannot be
paired
The bluetooth headset is
not paired
Check whether the bluetooth headset is in
a state of alternating red and green lights; whether the
flashing frequency of the lights is normal
Check if the Bluetooth Pisces logo appears on the
phone screen
Bluetooth headset is
connected but no
sound
Re-pair the bluetooth headset with the phone
The bluetooth headset is
out of range
Keep the Bluetooth headset within the surrounding
range of the mobile phone (within 30m), and there
should be no obstacles within the range.