Vodafone 541 Benutzerhandbuch

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76

•

Check that your Touch area is locked when you are not using your mobile phone

•

Check the battery charge level

•

Make sure that your battery is not completely discharged; the battery charge indicator 
can take several minutes and may be accompanied by a quiet whistling sound

•

Make sure charging is carried out under normal conditions (0°C +40°C)

•

Make sure your battery is inserted. It must be inserted before plugging in the charger

•

Make sure you are using an Vodafone battery and charger

•

When abroad, check that the voltage is compatible

•

Try connecting in another location

•

Verify the network coverage with your operator

•

Check with your operator that your SIM card is valid

•

Try selecting the available network(s) manually (see page 67)

•

Try connecting at a later time if the network is overloaded

•

Make sure the SIM card has been correctly inserted (see page 19)

•

Verify with your operator that your SIM card is 3V compatible; the old 5V SIM cards 
cannot be used

•

Make sure the chip on your SIM card is not damaged or scratched

•

Make sure you have dialled a valid number and press 

 in dial board 

•

For international calls, check the country and area codes

•

Make sure your mobile phone is connected to a network, and that the network is not 
overloaded or unavailable

•

Check your subscription status with your operator (credit, SIM card valid, etc.)

•

Make sure you have not barred outgoing calls (see page 38)

Before contacting the aftersales department, you are advised to follow the instructions 
below:

•

You  are  advised  to  switch  off  the  telephone  from  time  to  time  to  optimise  its 
performance.

•

You are advised to fully charge (

) the battery for optimal operation.

•

Avoid  storing  large  amounts  of  data  in  your  telephone  as  this  may  affect  the 
performance of your telephone. 

and carry out the following checks:
My mobile phone will not switch on

•

Press 

 until the screen comes on

•

Check the battery charge level

•

Make sure your battery is not completely used up or damaged.

•

Check  the  battery  contacts,  remove  and  reinstall  your  battery,  then  turn  your 
telephone back on

•

Remove your battery, remove your SIM card, reinsert the battery and then power it on 
again.

•

Hold down   key + 

 

key at same time, then press up 

 

key to reset it 

(1)

.

•

Press the 

 key

•

Remove the battery and re-insert it, then switch the phone back on 

•

Clean your screen

•

Use your mobile phone in accordance with the recommended conditions of use

(1)

  ALL User phone data: contacts, photos, messages, files and downloaded applications 

such as Java games will be lost permanently. Please do not remove battery during 
resetting.