P35 - style, englisch, A31008-H4000-A1-2-7619 23.11.99 P35c- Troubleshooting 59 If you encounter problems using your phone, please try to find a solution using the “Troubleshooting” table below. If the problem persists, contact your Service Provider or Siemens Service (see p. 58). Problem Possible Causes Unable to On/Off key not pressed switch phone long enough on Empty battery. Possible Corrective Measures (Press on/off key for at least 2 seconds Charge battery. Check charging indicator in display. Battery contacts dirty. Clean contacts. Battery totally discharged. Charge battery for half an hour, detach the charging cable briefly, then charge as normal. Standby time Frequent use of organizer/ Restrict use if necessary. insufficient games. Memory effect Carry out battery care function (see p. 48) Economy power mode not Activate economy power mode (see p. 48). activated. Display illumination active. Switch off display illumination (see p. 48). Keys pressed unintention- Activate key lock. ally (illumination!) Charging Battery totally discharged. Charge battery for half an hour, detach the error charging cable briefly, then charge as normal. (no charging Temperature exceeds Make sure the ambient temperature is right, display) -10 °C to +45 °C range. allow time, then charge again. Contact problem. Check mains socket and connection to phone. Check battery contacts and clean if necessary, then insert the battery again. No mains power Connect to a different mains socket or check the mains supply. Charger defective If the charger does not warm up, replace it. SIM error Wrong charger Only use Original Siemens accessories. Battery defective. Replace battery. SIM card not correctly inserted Make sure that the SIM card is inserted correctly. The card carrier must engage (see p. 5). Clean the SIM card with a dry cloth. Only use 3 volt SIM cards SIM card contacts dirty SIM card has wrong volt rate SIM card damaged. Make visual check. Return SIM card to Service Provider.