Troubleshooting: When You Think, “Is It Broken?” Troubleshooting: When You Think, “Is It Broken?”
Earphone batteries
are depleted
(Immediately after
purchasing)
Battery level is low
Earphones will
not turn ON
Earphones will
not turn OFF
Problem RemedyCause
Please return the earphones into the charging case to charge
them. (In case the charge in the charging case has run out,
please charge the charging case first.)
Please refer to “Power / Charging” on P.3 regarding the
method for charging.
An error has occurred
due to improper
operation
In some cases, performing a reset operation may fix the
problem. Please refer to “Performing Factory Reset” on P.8
regarding the reset method.
For safety of transportation from overseas, laws and
regulations do not allow the internal battery to be fully
charged at the time of shipping. For that reason, voltage may
fall below the level required for operation at the time the
customer opens the package. Fully charging the battery
before use may relieve this inconvenience. Please refer to
“Power / Charging” on P.3 regarding the method for charging.
Using ear tips other
than those included
as accessories
preventing the case
from fully closed
Metal contacts on
earphone is not
touching the pins
on the charging case
Charging case
battery level is low
（
LED Indicator does
not light up while
opening or closing
the case
）
Earphones
cannot be
charged
Problem
Normally, if the earphones are returned to an adequately
charged case, the earphones will automatically turn OFF.
However, if ear tips other than provided are used, there are
cases in which they may interfere with the charging case and
cause the earphones could not be turned OFF. Please check to
see whether the earphones turn OFF by using original ear tips.
Charging case
battery level is low
(LED indicator does
not light up while
opening or closing
the case)
Normally, if the earphones are returned to an adequately
charged case, the earphones will automatically turn OFF
and start being charged. If the charging does not start, the
battery power level of the charging case might be too low.
Please try again after charging the charging case. Please
refer to “Power / Charging” on P.3 regarding the method for
charging.
The lid of the charging
case is not properly
closed
Normally, if the earphones are returned to an adequately
charged case, the earphones will automatically turn OFF
and start charging. If the lid of the charging case is closed
and re-opened, the earphone units will turn ON and keep
consuming power and lead to longer charging time.
Please make sure the lid is properly closed while charging.
Normally, if the earphones are returned to an adequately
charged case, the earphones will automatically turn OFF.
If the earphones do not turn OFF, the battery power level of
the charging case might be too low. Please try again after
charging the charging case. Please refer to “Power / Charging”
on P.3 regarding the method for charging.
Please ensure that the metal contacts are touching the
pins on the charging case. In addition, if the golden
terminal on the earphone or the charging case is dirty with
sebum, etc., it may not be able to be charged. Dirt is
hardly visible to the naked eye, so please wipe it off gently
with a dry cotton swab.
If the LED Indicator on the charging case does not light up
while opening or closing the case, this indicates that the
charging case battery might have depleted. Please charge
the charging case. Please refer to “Power / Charging” on P.3
regarding the method for charging.
Charging case
battery
is depleted
The touch control
panel section has
become soiled or
wet
In case the touch control panel section has become soiled
or wet, the touch control panel may not function properly,
and it may not be possible to operate the earphones.
Please wipe the touch control panel section with a soft, dry
cloth to remove stains or moisture.
Using ear tips other
than an accessory
Normally, if the earphones are returned to an adequately
charged case, the earphones will automatically turn OFF and
start being charged. However, if ear tips other than provided
are used, there are cases in which they may interfere with the
charging case and cause the earphones could not be
charged. Please check to see whether the earphones start
charging (LED lights up in Red) by using original ear tips.
Touch sensor is
not functioning
14 15
Problem RemedyCause
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