LG Watch Urbane 2nd EDITION 3G User Manual page 96

NOTE
Foreign materials on the SIM cap sealing pad or SIM cap cover may
compromise the water resistant function. Make sure to clean or remove any
foreign material.
Unlock the SIM Card
If you insert the SIM card with a PIN lock, you have to enter the
unlock code. If the SIM card PIN is disabled, ignore this section.
1 After turning the watch on, swipe up from the bottom of your watch
screen until the SIM Locked screen appears.
2 Tap the SIM Locked screen to enter the unlock code.
3 Enter the unlock code.
Basic
SIM cap cover
SIM cap sealing pad
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