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CHRONO 4
17
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9. Troubleshooting
If you have problems with the unit, please refer to the following tips.
Problems with the
microSD card
Check if it is properly mounted.
Check if the card is correctly formatted.
Use another memory card - pay attention to the
speed (class) and capacity of the card.
Problems with
GSM connection
from SIM card in
the smartwatch
Check if SIM is properly mounted.
Check if there are funds on the card, if it is a prepaid
card.
Check whether the plane mode has been activated
in the smartwatch.
There are problems
with the sound
from the built-in
loudspeaker
Check that the smartwach hasn't been muted.
Check if silent mode has not been activated
Check the setting of notification volume.
Check that the files set as ringtones are not
corrupted, if so, select another song.
The caller can't
hear me
Check whether the speaker is not covered.
Make sure the microphone is not muted.
The recorded
sound is of poor
quality
Check whether the speaker is not covered.
I cannot hear the
caller during the
conversation
Check if the speaker hasn't been muted.
Check that the sound amplification is not set too low.
Cannot connect
the device to a
smartphone via
Bluetooth
Check that the Bluetooth module is running on both
devices.
Check the visibility options, as it is possible that a
device is set as invisible.
Check the distance between devices - in an open
space it is a maximum of 10 meters, but in a house
the distance drops drastically through furniture,
walls and wiring and installations in the walls.
Check whether the plane mode has been activated
in the smartwatch.
Smartwatch does
not turn on
Charge the battery. The device can be switched on
when the battery power level is at least several
percent.
