Siemens ST55 사용자 설명서

ST55 en retail, A31008-H6850-A101-1-7619 (8. August 2003, 14:18)

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If you have any questions about using your phone, visit us at 

www.my-siemens.com/customercare anytime. As further help we have listed below some 

frequently asked questions and answers.

Phone cannot 

be switched on.

On/Off key not pressed long 

enough.

Press On/Off key for at least 2 seconds.

Flat battery.

Charge battery. Check charging indicator in the 

display.

Battery contacts dirty.

Clean contacts.

See also below under “Charging 

error”.

Standby time is 

too short.

Frequent use of organiser and 

games.

Restrict use if necessary.

Display illumination on.

Switch off display illumination (p. 51).

Unintentional keystrokes 

(illumination!).

Activate key lock (p. 52).

Charging error 

(charge icon 

not displayed).

Battery totally discharged.

1) Plug in power supply unit, battery is on charge. 

2) Charge icon appears after approx. 2 hours.

3) Continue to charge battery.

Temperature out of range: 

+5 °C to +40 °C.

Make sure the ambient temperature is right, wait for 

a while, then recharge.

Contact problem.

Check power supply and connection to the phone. 

Check battery contacts and connection socket, clean 

them if necessary, then insert battery again.

No mains voltage.

Use different mains power socket, check mains 

voltage.

Wrong charger.

Only use original Siemens accessories.

Battery faulty.

Replace battery.

SIM error.

SIM card not correctly inserted.

Check that the SIM card is inserted correctly (p. 8).

Dirty SIM card contacts.

Clean SIM card with a dry cloth.

SIM card with wrong voltage.

Use 3V SIM cards only.

SIM card damaged (e.g. broken). Carry out a visual check. Ask service provider to 

change SIM card.