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携帯電話 Blackberry 1S40555のPDF トラブルシューティングマニュアルをオンラインで閲覧またはダウンロードできます。Blackberry 1S40555 7 ページ。

• Make sure the SIM card has been inserted correctly

• Make sure the chip on your SIM card isn't damaged or scratched.

• Make sure the service of your SIM card is available.

Unable to make outgoing calls

• Make sure you have dialed a valid number and have touched.

• For international calls, check the country and area codes.

• Make sure your phone is connected to a network, and the network isn't overloaded or

unavailable.

• Check your subscription status with your operator (credit, SIM card valid, etc.).

• Make sure your phone hasn't barred outgoing calls.

• Make sure that your phone isn't in flight mode.

Unable to receive incoming calls

• Make sure your phone is switched on and connected to a network (check for overloaded or

unavailable network).

• Check your subscription status with your operator (credit, SIM card valid, etc.)

• Make sure your phone hasn't forwarded incoming calls.

• Make sure that your phone hasn't barred certain calls.

• Make sure that your phone isn't in flight mode.

The caller's name/number does not appear when a call is received

• Check that you have subscribed to this service with your operator.

• Your caller has concealed his/her name or number.

I cannot find my contacts

• Make sure your SIM card isn't broken.

• Make sure your SIM card is inserted properly.

• Import all contacts stored in SIM card to phone.

The sound quality of the calls is poor

• You can adjust the volume during a call by pressing the Volume Up/Down key.

• Check the network strength.

• Make sure that the receiver, connector or speaker on your phone is clean.

I don't hear when somebody calls/message me, I just see missed calls/messages

notifications on display.

• Please check if Interruptions/Do not disturb mode is activated on your device. If it is activated,

the icon will display on the notification panel.