Casio G-Shock GST-B400 Operation Manual page 26

Q2
I can't connect while my phone is in
the Airplane Mode.
Connection with the watch is not possible
while the phone's Airplane Mode is enabled.
After disabling the phone's Airplane Mode, go
to the phone's Home Screen and tap the "G-
SHOCK Connected" icon. Next, on the watch,
hold down (C) for at least three seconds.
Q3
I changed the phone's Bluetooth
from enabled to disabled, and now I
can't connect anymore.
On your phone, re-enable Bluetooth, and then
go to the Home Screen and tap the "G-
SHOCK Connected" icon. Next, on the watch,
hold down (C) for at least three seconds.
Q4
I can't connect after turning off the
phone.
Turn your phone off and then back on, and
then tap the "G-SHOCK Connected" icon.
Next, on the watch, hold down (C) for at least
three seconds.
Watch Operation Guide 5657
Phone-Watch Connection
Q1
I can't establish a connection
between the phone and watch.
Have you tried turning your phone off and
then back on again?
Turn your phone off and then back on, and
then tap the "G-SHOCK Connected" icon.
Next, on the watch, hold down (C) for at
least three seconds.
Has the watch been re-paired with the
phone?
Delete the pairing information from G-
SHOCK Connected and your phone
(iPhone only), and then re-pair them.
Deleting Pairing Information from G-
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SHOCK Connected
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C
If you are unable to establish a
connection...
After deleting pairing information from the
watch, re-pair it with your phone.
Deleting Pairing Information from the
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Watch
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Changing to a Different
Phone Model
Q1
Connecting the current watch to
another phone.
Delete the pairing information from your watch
and then pair it with the phone you want to
connect with.
If you purchase another phone
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Pair the watch with a phone.
Pair the watch with a phone.
Auto Time Adjustment by
Bluetooth Connection (Time
Adjustment)
Q1
When does the watch adjust its time?
The watch will connect with the phone and
perform auto time adjustment at around 12:30
a.m., 6:30 a.m., 12:30 p.m. and 6:30 p.m. The
connection is automatically terminated after
auto time adjustment is complete.
Q2
Auto time adjustment is not
performed at a scheduled time.
Is auto time adjustment not being
performed according to its normal
schedule?
Note that auto time adjustment is not
performed for 24 hours after swapping of
the Home Time and World Time, or after
the time setting is adjusted manually on
the watch. Auto time adjustment will
resume 24 hours after either of the above
operations is performed.
Is auto time adjustment enabled?
Auto time adjustment will not be
performed at the scheduled times unless
it is enabled. Enable auto time
adjustment.
Using the Watch in a Medical Facility or
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Aircraft
Q3
Time is not displayed correctly.
If your phone is unable to receive a signal
because you are outside its service range or
for some other reason, the watch may not be
able to display the correct time. If this
happens, connect the phone to its network
and then adjust the time setting.
Q4
Hands are out of alignment.
Strong magnetism or impact can cause the
hands to go out of alignment. Adjust hand
alignment.
Adjusting Hand Alignment
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Check the information below to find out how
●
to align the hands manually.
Hand Alignment Adjustment
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26