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Questions & Answers - Siemens CX75 User Manual

Siemens cell phone owner's manual.
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User manual - 76 pages
Service manual - 42 pages
Manual - 168 pages


Table of Contents
Questions & Answers
If you have any questions on the use of your phone, you can contact us at around the clock. As further help we
have listed below some frequently asked questions and answers.
Phone cannot be
switched on.
Standby time is too
Charging error
(charge icon not
SIM error.
Possible causes
On/Off key not pressed long
Flat battery.
Battery contacts dirty.
See also below under "Charging
Frequent use of organiser and
Fast search activated.
Display illumination switched on. Switch off display illumination (page 80).
Unintentional keystrokes (illumi-
Battery totally discharged.
Temperature out of range:
+5 °C to +45 °C.
Contact problem
No mains voltage.
Wrong charger.
Battery faulty.
SIM card not inserted correctly. Check that the SIM card is inserted correctly
Dirty SIM card contacts.
SIM card with wrong voltage.
SIM card damaged (e.g.
Questions & Answers
Possible solution
Press On/Off key for at least 2 seconds.
Charge battery. Check charging indicator in the
Clean contacts.
Restrict use if applicable.
Deactivate speed search (page 96).
Activate key lock (page 93).
1) Plug in charger cable, battery is on charge.
2) Charge icon appears after approx. 2 hours.
3) Charge battery.
Make sure the ambient temperature is right, wait
for a while, then recharge.
Check power supply and connection to the
phone. Check battery contacts and telephone
connection socket, clean them if necessary, then
insert battery again.
Use different mains power socket, check mains
Only use original Siemens accessories.
Replace battery.
(page 9).
Clean SIM card with a dry cloth.
Use 1.8 or 3 V SIM cards only.
Carry out a visual check. Have service provider
change the SIM card.


Table of Contents

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