ZTE MZ16 USB EDGE MODEM User’s Guide
18
8. Troubleshooting
If anything unusual occurs while using your ZTE MZ16, please refer to the following table.
Problems
Cause
Solution
ZTE MZ16 is inserted into USB Port of the
computer incorrectly.
Insert it correctly according to the
requirement.
The Driver is installed incorrectly.
Reinstall ZTE MZ16 Manager
Software for the correct driver.
Can't detect the ZTE MZ16
The USB port of the computer is damaged.
Fix or Replace USB port.
SIM card is not properly inserted.
Confirm SIM card is properly
inserted.
The other applications are using the USB
communications port of the computer.
Confirm that no other application
or process is using this
communications port.
Outside the EDGE, GPRS or GSM service
area
Consult your network provider on
the service area.
Expired SIM card
Contact your network provider.
SIM card is damaged.
Contact your network provider
There is a foreign substance on the metal
surface of the SIM card.
Use a clean cloth to wipe off the
metal contact point of the SIM
card.
Poor signal
Please move to a place with a
better signal and try again.
Failure connection to
internet and mobile
network
The application software isn’t compliant
with the USB Modem.
Reinstall the application software.
Connection is successful
but unable to open the
webpage.
Incorrect system setting
If in Windows 2000/XP, check the
DNS settings and don’t Select
“Register the address of this
connection in DNS”.
Quality of connection isn't
unstable.
Poor signal
Either disconnect and then connect
with network again or move to a
place with a better signal.
SIM card is locked.
Consecutively enter the wrong PIN code
three times.
Use the PUK code to unlock the
SIM card or contact your network
provider.
Unable to use SMS service
SMS centre’s number is incorrect.
Contact your network provider to
get the correct short message
centre’s number and set it.
Unable to receive a new
SMS
The memory of your SIM card for SMS is
full.
Delete some useless short
messages.
Unable to add new phone
book entries to SIM card
The memory of your SIM card for phone
book is full.
Delete some useless phone book
entries.
Your network provider does not support
this service or you have not applied for it.
Contact your network provider.
Unable to connect with
EDGE or GPRS network
You are not within EDGE or GPRS
network area.
Consult your network provider on
the EDGE or GPRS service area.
Unable to use CSD service
You have not applied for this service.
Contact your network provider.
