LG TONE-T90QC Owner's Manual page 15

If you replaced
the earbuds
or there is a
problem with
the operation
(Factory reset)
•Factory reset and Search mode cannot be used in Plug and Wireless mode.
While the earbuds are inserted in the charging case,
press and hold the touch pad on the left or right earbud
for 10 seconds or more.
- The battery status indicator of the charging case
flashesredandtheinitializationtothefactorystatus
is carried out. After initialization to the factory status,
reconnect the earbuds.
15