User's Manual

14
14
If you are unable to connect your CK21 and mobile phone, please try the following:
(a) Ensure the CK21 is paired with your mobile phone.
(b) Ensure your mobile phone's Bluetooth feature is activated. Please refer to your
mobile phone user guide for specific instruction.
(c) Ensure the CK21 is within a maximum of 10 meters of your mobile phone(s) and
there are no obstructions, such as wall or other electronic devices in between as it
may cause shorter or interference transmission.
(d) If all the above steps do not resolve your problem, please remove the battery for
a while.
(e) The Bluetooth CK21 is compliant with and adopts the Bluetooth Specification
V1.2. However, interoperability between the device and other Bluetooth-enable
products is not guaranteed because it depends on compatibility. For more
information on the compatibility between the devices with other Bluetooth-enabled
products, please check with the manufacturer/importer.
Trouble Shooting