Troubleshooting - Zapp Z020 User Manual

4. Troubleshooting

Q: I cannot connect to the Internet?
A: Please check "environment setting" of program for correct ID, password and Service number. For
proper ID, password and Service number, please contact service provider for more information.
Q: The Internet connection speed is too slow.
A: Please check whether the modem is set at 1X mode. If USB modem is set at 1X mode, then the
Internet is not connected as EVDO mode. EVDO icon must be appeared in the display to assure that
it has been connected as an EVDO mode.
Q: The Internet connection is poor and frequently it gets disconnected.
A: The CDMA frequency is at unstable state. Try to move to a different place then use it again. Also, if
you touch or block the USB modem with hand/body contact, the modem connection speed degrades.
Please be careful not to touch the modem with your hand or any part of the body.
Q: Can I leave the external power adopter in the electric socket even after the battery is
fully charged?
A: Yes, it is safe to leave adopter in the electric socket even after the battery is fully charged if you are
using genuine battery and adopter from the manufacturer.
Q: No matter how long I pressed the power button, the power does not get turned off.
A: Please check whether the external power is connected or not. If external power adopter is connected
then the power will not be tuned off.
Q: All of the display on the program's screen shows as prohibited icons.
A: Please check whether the port is properly set for communicating between computer and the modem
in the "environment setting" category.
Zapp – The Next Generation Network
(User Manual)
Z020 – EVDO Modem
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