The mobile phone is
not in a service area
of the GSM network
The signal is weak
The charging voltage
does not match the
voltage range
indicated on the
The battery
charger
cannot be
An improper charger
charged
is used
Poor contact
5 Taking Care of your Device
Your device is a product of superior design and craftsmanship and should be handled with care: The following
suggestions will help you protect your phone:
•
Use a dry soft cloth to wipe general dirt.
•
Do not use a hard cloth, benzene or thinner to wipe the phone, otherwise, the surface of the phone will be
scratched or could even result in the fading of colour.
•
Always keep the small parts of the phone away from children.
•
Keep the device dry. Precipitation, humidity, and all types of liquids or moisture can contain minerals that will
rust electronic circuits. If your device does get wet, remove the battery, and allow the device to dry completely
before replacing it.
•
Do not use or store the device in dusty, dirty areas. Its moving parts and electronic components can be
damaged.
•
Do not store the device in high or cold temperature. High temperatures can shorten the life of electronic devices
and damage batteries.
•
Do not attempt to open the device other than as instructed in this guide.
•
Do not drop, knock, or shake the device. Rough handling can break internal circuit boards and fine mechanics.
•
Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the device. Only use a soft, clean,
dry cloth to clean the surface of the device.
Move to the network operator's service area
Move to a place where the signal quality is high
Ensure the charging voltage matches the voltage range indicated on the
charger
Use the charger specially designed for the mobile phone
Ensure the charger plug is in good contact with the mobile phone
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Sync 5b User Manual | Sync 5b Manual de Usuario