10.11.00 u35err.fm U35 - english, A31008-H4800-A1-1-7619
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Troubleshooting
If problems occur when using the phone, try to find a solution here first. If the
problem persists, check with your Service Provider or the Siemens Service.
Problem
Possible causes
Possible corrective measures
Phone cannot be
switched on.
On/Off key pressed too briefly.
$Press On/Off key for at least two seconds.
Battery empty Charge battery. Check charging indicator in the display.
Battery contacts dirty Clean contacts.
Battery in total discharge
(charge icon no longer
displayed).
Charge battery.
Standby time in-
sufficient.
Frequent use of the organizer
and games.
Restrict use if necessary.
Speed search active. Deactivate speed search (see p. 58).
Display illumination on. Switch off display illumination (see p.58).
Unintentional keystroke
(illumination!).
Activate key lock.
Charging error
(charge icon not
displayed or
flashing)
Battery totally discharged. Charge battery.
Temperature out of range:
+5 °C to +40 °C
Make sure the ambient temperature is right, wait a
while, then charge again.
Contact problem Check power supply and connection to the phone.
Check battery contacts, clean them if necessary, then
insert battery again.
No mains voltage Plug in to a different socket or check voltage.
Charger defective If the charger does not warm up, replace it.
Wrong charger Only use original Siemens accessories.
Battery defective Replace battery.
SIM error SIM card not correctly inserted Make sure that the SIM card is correctly inserted. The
card carrier must engage (see p.7).
SIM card contacts dirty Clean the SIM card with a dry cloth.
SIM card with wrong voltage Use only SIM cards with 3 Volt.
SIM card damaged Make visual check.
Return SIM card to Service Provider.