Module No. 5713
Troubleshooting
Signal Reception (Time Calibration Signal)
Q1The watch cannot perform a receive operation.
Is the watch’s battery charged?
Signal reception is not possible while battery power is low. Keep the watch exposed to light until it recharges sufficiently.
Is the watch in the Timekeeping Mode?
Time signal receive is performed only while the watch is in the Timekeeping Mode. Return to the Timekeeping Mode.
Is your Home City setting correct for your location?
The watch will not indicate the correct time if the Home City setting is wrong. Change your Home City setting so it correctly reflects your location.
After checking the above, the watch still cannot perform a receive operation.
Time calibration signal reception is not possible under the conditions described below.
When watch is at Level 2 power saving
When the crown is pulled out
Timer countdown operation in progress
If successful reception is not possible for some reason, you can adjust the time and day settings manually.
Q2The signal receive operation always fails.
Is the watch in a location that is appropriate for signal reception?
Check your surroundings and move the watch to a location where signal reception is better.
Did you avoid touching the watch while the receive operation was in progress?
Minimize movement of the watch and do not perform any watch operation while a receive operation is in progress.
Is there an alarm configured to sound during the same period that the signal receive operation is performed?
Receive stops if an alarm operation starts while it is being performed. Disable the alarm.
Is the signal transmitter in your area transmitting a signal?
The transmitter of the time calibration may not be transmitting a signal.
Try again later.
Q3Signal reception should have been successful, but the watch’s time and/or day is wrong.
Is the indicated time off by one hour or by 30 minutes?
The watch may be using the wrong time offset. Specify the area you want to use as your Home City.
Is the indicated hour and/or minute wrong?
The hour hand and/or minute hand may be out of alignment. Perform the procedure under “Hand Alignment Adjustment” to auto adjust hour and minute hand alignment.
After checking the above, the time and/or day settings is still wrong.
Adjust time and day settings manually.
I can’t pair the watch with a phone.
Q1I’ve never been able to establish a (pairing) connection between the watch and phone.
Are you using a supported phone model?
Check if the phone model and its operating system are supported by the watch.
For information about supported phone models, visit the CASIO Website.
Did you install the CASIO WATCHES phone app on your phone?
The CASIO WATCHES phone app needs to be installed on your phone in order to connect with the watch.
Install the app on your phone.Are your phone’s Bluetooth settings configured correctly?
Configure the phone’s Bluetooth settings. For details about setting procedures, see your phone documentation.
iPhone Users
“Settings” 
“Bluetooth” On
“Settings” “Privacy” “Bluetooth” “CASIO WATCHES” On
Android Users
Enable Bluetooth.
Other than the above.
Some phones need to have BT Smart disabled to use the CASIO WATCHES phone app. For details about setting procedures, see your phone documentation.
On the Home Screen, tap: “Menu” “Settings” “Bluetooth” “Menu” “BT Smart settings” “Disable”.
I can’t reconnect the watch and phone.
Q1The watch will not re-connect with the phone after they are disconnected.
Is the CASIO WATCHES phone app running?
The watch cannot re-connect with your phone unless CASIO WATCHES is running on the phone. On your phone’s Home Screen, tap the “CASIO WATCHES” icon. Next, on the watch, hold down (B) for at least five seconds.
Have you tried turning your phone off and then back on again?
Turn your phone off and then back on, and then tap the “CASIO WATCHES” icon. Next, on the watch, hold down (B) for at least five seconds.
Is a timer countdown operation in progress?
Connection with a phone is not possible while there is 30 seconds or less remaining on a countdown timer operation. Stop the countdown operation before connecting with the phone.
Q2I can’t connect while my phone is in the Airplane Mode.
Connection with the watch is not possible while your phone is in the Airplane Mode. After disabling the phone’s Airplane Mode, go to the phone’s Home Screen and tap the “CASIO WATCHES” icon. Next, on the watch, hold down (B) for at least five seconds.
Q3I 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 “CASIO WATCHES” icon. Next, on the watch, hold down (B) for at least five seconds.
Q4I can’t connect after turning off the phone.
Turn your phone off and then back on, and then tap the “CASIO WATCHES” icon. Next, on the watch, hold down (B) for at least five seconds.
Phone-Watch Connection
Q1I 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 “CASIO WATCHES” icon. Next, on the watch, hold down (B) for at least five seconds.
Has the watch been re-paired with the phone?
After deleting the pairing information from the CASIO WATCHES phone app and your phone, re-pair the watch and phone.
Pair the watch with a phone.If you are unable to establish a connection...
After deleting pairing information from the watch, re-pair it with your phone.
Changing to a Different Phone Model
Q1Connecting 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.
Auto Time Correction by Bluetooth Connection (Time Correction)
Q1When does the watch correct 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.
Q2Auto time correction is performed, but the time setting is not correct.
Is auto time correction not being performed according to its normal schedule?
Note that auto time correction is not performed for 24 hours after swapping of the Home Time and World Time, or after the time setting is corrected manually on the watch. Auto time correction 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.
Q3Time 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 correct the time setting.
Altitude Measurement
Q1Readings produce different results at the same location.
Watch readings are different from altitude information available from other sources.
Correct altitude readings are not possible.
Relative altitude is calculated based on changes in barometric pressure measured by the watch’s pressure sensor. This means that barometric pressure changes can cause readings taken at the same location to be different. Also note that the value displayed by the watch may be different from the actual elevation and/or sea level elevation indicated for the area where you are located. When using the watch’s altimeter while mountain climbing, it is recommended that you regularly calibrate its readings in accordance with local altitude (elevation) indications.
Q2Following a relative altitude reading, the watch’s function hand points to [0].
The function hand moves to [0] if a reading is outside the allowable altitude measurement range (-700 m to 10,000 m (-2,300 feet to 32,800 feet)). If [ERR] is displayed, there may be a problem with the sensor.
Q3[ERR] appears during measurement.
There may be a problem with the sensor. Try taking another measurement.
If [ERR] keeps appearing after multiple measurement attempts, contact a CASIO service center or your original retailer.
Digital Compass
Q1The entire display is flashing.
Abnormal magnetism has been detected. Move away from any potential source of strong magnetism and try taking a reading again.
If the display flashes again, it could mean that the watch itself has become magnetized. Move away from any potential source of strong magnetism, perform bidirectional calibration, and then try taking a reading again.
Q2[ERR] appears during measurement.
There is a problem with the sensor or there may be a source strong magnetic force nearby. Move away from any potential source of strong magnetism and try taking a reading again. If [ERR] keeps appearing after multiple measurement attempts, contact a CASIO service center or your original retailer.
Q3[ERR] appears on the display following direction calibration.
[ERR] on the display could indicate a sensor problem.
If [ERR] disappears after about one second, try performing 2-point calibration again.
If [ERR] keeps appearing after multiple attempts, contact a CASIO service center or your original retailer.
Q4Direction information indicated by the watch is different from that indicated by a backup compass.
Move away from any potential source of strong magnetism, perform direction calibration, and then try taking a reading again.
Q5Readings at the same location produce different results.
Cannot take readings indoors.
Move away from any potential source of strong magnetism and try taking a reading again.
Location Memory
Q1Location Memory does not work.
Is the watch paired with a phone?
The watch needs to be paired with a phone for Location Memory to work. Pair the watch with a phone.
Are phone settings configured to acquire location information?
The phone needs to be used to allow use of CASIO WATCHES location information for Location Memory to work. Allow use of location information.
Are phone settings configured to acquire GPS information?
You may experience problems acquiring GPS information in environments like the ones described below.
Where the view of the sky above is narrow
Near trees or buildings
Near a train station, airport, or other congested areas
Locations where there is heavy traffic and radio wave interference
Near railway aerial wires, high-voltage lines, TV towers, etc.
Signal reception is not possible in the locations described below.
Where the sky is not visible
Underground, in a tunnel, under water
Indoors (Reception may be possible near a window.)
Near radio communication equipment or other devices that generate electromagnetic waves
Q2I want to change the recorded location information.
You can use the CASIO WATCHES phone app to edit location information.
Location Indicator
Q1Location Indicator does not appear on the display.
Is the watch paired with a phone?
The watch needs to be paired with a phone for Location Indicator to work. Pair the watch with a phone.
Is Location Memory information being recorded?
Location information needs to be recorded in Location Memory for Location Indicator to work. Record location information in Location Memory.
Are phone settings configured to acquire location information?
The phone needs to be used to allow use of CASIO WATCHES location information for Location Indicator to work. Allow use of location information.
Are phone settings configured to acquire GPS information?
You may experience problems acquiring GPS information in environments like the ones described below.
Where the view of the sky above is narrow
Near trees or buildings
Near a train station, airport, or other congested areas
Locations where there is heavy traffic and radio wave interference
Near railway aerial wires, high-voltage lines, TV towers, etc.
Signal reception is not possible in the locations described below.
Where the sky is not visible
Underground, in a tunnel, under water
Indoors (Reception may be possible near a window.)
Near radio communication equipment or other devices that generate electromagnetic waves
Barometric Pressure Measurement
Q1Following a relative barometric pressure reading, the watch’s function hand points to [0].
If a reading is outside the allowable barometric pressure measurement range (260 hPa to 1,100 hPa (or 7.65 inHg to 32.45 inHg)), the function hand will point to [0]. If [ERR] is displayed, there may be a problem with the sensor.
Q2[ERR] appears during measurement.
There may be a problem with the sensor. Try taking another measurement. If [ERR] keeps appearing after multiple measurement attempts, contact a CASIO service center or your original retailer.
Temperature Measurement
Q1[ERR] appears during measurement.
There may be a problem with the sensor. Try taking another measurement. If [ERR] keeps appearing after multiple measurement attempts, contact a CASIO service center or your original retailer.
World Time
Q1The time for a World Time City is not correct.
The summer time setting (standard time/summer time) may be wrong.
Alarm and Hourly Time Signal
Q1An alarm does not sound.
Is the watch’s battery charged?
Keep the watch exposed to light until it recharges sufficiently.
The crown is pulled out.
The alarm will not sound while the crown is pulled out. Push the crown back in to its normal position.
Other than the above.
The alarm’s settings may not be configured. Configure the alarm settings.
Q2The hourly time signal does not sound.
Is the watch’s battery charged?
Keep the watch exposed to light until it recharges sufficiently.
The crown is pulled out.
The hourly time signal will not sound while the crown is pulled out. Push the crown back in to its normal position.
Other than the above.
The hourly time signal may be disabled. Enable the hourly time signal.
Hand Movement and Watch Screen Indications
Q1I don’t know what mode the watch is in.
You can determine the current mode by checking the watch display. Use (B) to navigate between modes.
Q2The second hand is jumping at two-second intervals.
Battery power is low. Keep the watch exposed to light until it recharges sufficiently.
Q3All hands are stopped and buttons do not work.
The battery is dead. Keep the watch exposed to light until it recharges sufficiently.
Q4The hands suddenly start moving at high speed.
This is due to the reason (or one of the reasons) below, and does not indicate malfunction. Simply wait until normal hand movement resumes.
The watch is recovering from a power saving state.
A time calibration signal is being received and the time setting is being adjusted.
Watch is connected with a phone to correct its time setting.
Q5Hands are stopped and buttons do not work.
The watch is in the charge recovery mode. Wait until the recovery process is complete (for about 15 minutes). The watch will recover more quickly if you place it in a brightly lit location.
Q6Why is the current time indicated by the watch is off by a certain amount of time (nine hours, three hours and 15 minutes, etc.)?
The city setting is not correct. Select the correct setting.
Q7The current time indicated by the watch is off by one hour or 30 minutes.
The summer time setting may not be correct. Select the correct setting.
Q8The time indicated by the hands is different from the displayed time.
Strong magnetism or impact can cause the hands to go out of alignment. Adjust hand alignment.
Check the information below to find out how to align the hands manually.
Crown Operations
Q1Nothing happens when I rotate the crown.
If you do not perform any operation for at least two minutes after pulling out the crown (approximately 30 minutes in the case of hand alignment), crown operations will automatically become disabled. If that happens, push the crown back in and then pull it out again.
Charging
Q1The watch does not work even though it is exposed to light.
The watch stops operating whenever the battery goes dead. Keep the watch exposed to light until it recharges sufficiently.
Q2[RECOVER] is flashing on the display.
The watch is in the charge recovery mode. Wait until the recovery process is complete (about 15 minutes). The watch will recover more quickly if you place it in a brightly lit location.
If a sensor measurement operation, illumination and/or other power-intensive functions are used within a short period of time, the charging capacity of the battery drops and causes the watch to go into a charge recovery mode. Function availability is temporarily limited, but functionality returns after the battery recovers.
Q3[CHARGE] is flashing on the digital display.
The charge level of the watch is extremely low. Immediately expose the watch to light to charge it.
Other
Q1I can’t find the information I need here.
Visit the website below.