DBTEL DB-T302C User Manual
Problem Solving
38
Problem Solving
Problem Solving
1. When you switch on your phone,
“Insert SIM card” is displayed.
a. Check that the SIM card is correctly installed.
b. Ensure that the gold chip is not damaged or
b. Ensure that the gold chip is not damaged or
scratched.
c. Check the SIM card contact. If they are dirty,
clean them with an antistatic cloth.
2. When your phone shows “PIN”, “PIN2”,
“PUK”, “PUK2”, and “Barring code”.
a. Please contact your network service provider
for the numbers.
b. Enter the wrong PIN code three times in
succession, the SIM card will be blocked.
c. For the PUK code, check with your network
service provider.
3. No connection to network.
a. Check the signal strength meter in the display.
If the signal is weak, move to an open space
or move closer to a window and try again.
or move closer to a window and try again.
b. Contact your network service provider for
further detail.
4. Your correspondent cannot hear you.
a. Check that the network signal strength is
normal and try again.
b.
Check that the microphone is unmuted.
c. Holding the phone closer to your mouth.
5. The battery won’t charge.
a. Check that the charger is properly connected.
b. The message “Charging” will only be shown
b. The message “Charging” will only be shown
when you charge the battery with the handset
switched off.
switched off.
6. You can’t make calls.
a. Check the signal strength meter in the display.
If the signal is weak, move to an open space
or, if you are in a building, move closer to a
window.
or, if you are in a building, move closer to a
window.
b. The network is busy, please try again later.
c. Check whether the call charge limit has been
c. Check whether the call charge limit has been
reached.
7. The battery drains faster than normal.
a. Check whether you are in an area of variable
coverage. This uses extra battery power.
b. Ensure that the using environment is not in
extreme temperatures. At extreme hot or cold
temperatures, battery performance is
significantly reduced.
temperatures, battery performance is
significantly reduced.
8. The LI-ION battery was being charged
overnight.
It is strongly recommended that not to charge the
battery for more than 24 hours. It may decline the
battery performance or cause damage to the
battery.
battery for more than 24 hours. It may decline the
battery performance or cause damage to the
battery.
9. The headset starts beeping.
The signal is weak or out of coverage.