DBTEL 2901, Руководство пользователя

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Problem Solving
37
Problem Solving
Problem Solving
1. When you switch on your phone,
“Insert UIM card” is displayed
a. Check that the UIM card is correctly installed.
b. Ensure that the gold chip is not damaged or
scratched.
c. Check the UIM card contacts. 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. If you enter the wrong PIN code three times in
succession, the UIM 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.
b. Contact your network service provider for
further details.
4. Your correspondent cannot hear you.
a. Check that the network signal strength is
normal and try again.
b. Check that the earphone is unmuted.
c. Holding the phone close 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
when you charge the battery with the handset
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.
b. The network is busy, please try again later.
c. Check whether the call charge limit has been
reached.
7. The battery drains faster than normal.
a. Check whether are you in an area with
unstable coverage as this may use extra
battery power.
b. Ensure that the mobile phone is not exposed to
extreme temperatures. This will significantly
reduce battery performance.
It is strongly recommended not to charge the
battery for more that 24 hours. This will reduce the
battery performance or cause damage to the
battery.
8. The headset starts beeping.
The signal is weak or out of coverage.