29
Problem
Description
Possible Causes
Problem Solving
After restarting
the computer,
there is no signal
indicated.
1. You are in the
place where there
is no GSM/ GPRS
/EDGE /WCDMA
/HSDPA network
coverage. Such
places include
underground
parking garages,
tunnels, and some
remote rural areas.
1. Change location
to find a good
where having
signal.
2. The device is not
properly connected.
2. Close the device
safely as usual, pull
out the device and
reinsert the device
again.
3. The SIM/USIM
card isn't inserted
properly.
3. Remove and
reinsert the
SIM/USIM card
correctly.
4. The MODEM
device is positioned
in such a way as
that adversely
affects the devices
signal reception.
4. Adjust the angle /
position of the
MODEM device or
its proximity to
other electronic
devices.