Huawei M570, User Manual

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19
Problem Ensure that...
Your phone
displays "No
service found",
"Service
unavailable" or
"Network
problem".

You are in an area with very weak
signal or outside your service
provider's network coverage (in a
tunnel or surrounded by buildings). If
so, move to another area and try
again.

Do not utilize the service option
without obtaining authorization from
your service provider.
The phone
cannot find other
Bluetooth devices
or fails to send or
receive data via
Bluetooth.

The Bluetooth function of both
devices is turned on.

The distance between the two
Bluetooth devices is less than 10
meters.

There are no obstacles between the
two devices.

The other Bluetooth device is set to
visible.
13 Warnings and Precautions
This section contains important information pertaining to the
operating instructions of your device. It also contains
information about how to use the device safely. Read this
information carefully before using your device.
Electronic Device
Power off your device if using the device is prohibited. Do