Siemens MT50 - Manual (Page 84)

Questions & Answers
82
MT50 english, A31008-H5120-A1-1-7619 (4. März 2002, 11:00)
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Questions &
Answers
If you have any questions about using your phone, visit us at
www.my-siemens.com/customercare anytime.
In addition we have listed some frequently asked questions and answers below.
Question Possible causes Possible solution
Phone cannot
be switched on.
On/Off key not pressed long
enough.
S Press On/Off key for at least two 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 the organiser and
games.
Restrict use if necessary.
Speed search active. Deactivate speed search (p. 62).
Display illumination on. Switch off display illumination (p. 61).
Unintentional keystrokes
(illumination!).
Activate key lock (p. 61).
Memory effect (only NiMH battery). Run battery care function (p. 62).
Charging error
(charge icon
not displayed).
Battery totally discharged. 1) Plug in charger cable.
2) Wait up to 2 hours until the charge icon is displayed.
3) Charge battery as usual.
Temperature out of range:
5 °C to 40 °C.
Make sure the ambient temperature is right, wait a
while, then recharge.
Contact problem. Check power supply and connection to the phone.
Check battery contacts and device interface, 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. Make sure that the SIM card is correctly inserted
(p. 7).
SIM card contacts dirty. Clean the SIM card with a dry cloth.
SIM card with wrong voltage. Use 3 V SIM cards only.
SIM card damaged (e.g. broken). Inspect the damage. Return the SIM card to service
provider.