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The display screen does not turn on after the FWT is powered on (the FWT is
connected to the power adapter).
1. The voltage output of the power adapter does not meet the requirement of the FWT. Check
whether the AC input is normal and the power adapter is the approved one.
2. The external voltage of the power adapter is low or unstable; disrupting the normal functioning of
the FWT. Check whether the external voltage of the power adapter is normal. You can also install
the battery in the FWT.
There is no signal icon on the display screen.
1. Make sure that the antenna is installed properly.
2. If there is still no signal, contact your service provider to check whether the FWT is in the signal
coverage area.
After the FWT is powered off, there is no display sometimes while sometimes
there is power supply icon and blinking battery icon.
No information on the display screen is a normal status of FWT after power-off. The power supply
icon and a blinking battery icon indicate that the battery is being charged.
There is the ring tone after the busy tone.
The ring tone indicates that there is an incoming call. If you are not in a call, you can answer the call.
After lifting the handset, there is a ring tone when you are ready to dial or are
dialing a phone number.
It indicates that there is an incoming call. If you are not in a conversation, you can answer the call.
There is only the battery icon on the display screen.
It indicates that the FWT is powered by the battery. If the FWT is powered solely by the battery and
the battery icon is blinking without any bar inside, it indicates that the battery level is low. Use the
power adapter to charge the battery or replace the battery.
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 not use the device when using the device
causes danger or interference with electronic devices.
Medical Device
y Follow rules and regulations set forth by hospitals and health care facilities. Do not use your device
when using the device is prohibited.
y Pacemaker manufacturers recommend that a minimum distance of 15 cm be maintained between
a device and a pacemaker to prevent potential interference with the pacemaker. If you are using a
pacemaker, use the device on the opposite side of the pacemaker and do not carry the device in
your front pocket.
y Some wireless devices may affect the performance of hearing aids. For any such problems,
consult your service provider.