Publicidad
Troubleshooting
30 |
HD 4.40BT
Troubleshooting
Problem
Possible cause
Headphones
Battery is empty
cannot be
Battery is completely
switched on
exhausted/worn out
No audio signal Headphones are not
paired with your device
Volume too low
Headphones are
switched off
Headphones
Pairing does not work
cannot connect
Smartphone is
switched off
Bluetooth is
deactivated on your
smartphone
Headphones
Headphones are not
do not respond
functioning properly
to any button
press
No audio signal Headphones are not
paired with your device
Volume too low
Headphones are
switched off
Headphones
Headphones must have
do not
been paired previously
automatically
to some devices
go to pairing
mode
If you encounter a problem that is not listed in the table, or if the solutions
provided do not work, please contact an authorized Sennheiser service partner
for assistance.
To find a Sennheiser service partner in your country, visit www.sennheiser.com.
Possible solution
Charge the headphones
Visit an authorized
Sennheiser service center
for battery replacement
Check if the headphones
are paired. If necessary,
pair the headphones with
the device again
Increase the volume
Switch the headphones on
Check if your smartphone
supports the HFP or HSP
Bluetooth profile
Switch your smartphone
on
Activate Bluetooth on your
smartphone
Restart the headphones by
switching them off and on
again.
Check if the headphones
are paired. If necessary,
pair the headphones with
the device again
Increase the volume
Switch the headphones on
Switch the headphones
off and press the power
button for 4 seconds
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