LG wt7700h*a Owner's Manual page 40

40 TAG ON FUNCTION
TAG ON CYCLE SET
1, Select Tag On,
Select "Tag On" by using either the top or bottom
icons,
2, Select "Tag On Cycle Set".
3. Touch the Tag On logo,
When a Tag On screen appears (see at left), tap your
smart phone on the Tag On icon on the right side of
the washer's control panel,
If it isn't recognized, touch _ on the upper right of
the Tag On screen on your "LG Smart Laundry & DW"
app to see the detailed guide.
(This might happen due to the different NFC antenna
positions for each phone.)
4. Select a laundry category based on the issue you want
the machine to focus on.