63Troubleshooting
To use the phone lock
1From stand-by select Menu >Settings
>the General tab >Security >Locks
>Phone protection >Protection.
2Select an option.
3Enter the phone lock code and
selectOK .
To unlock the phone
•Enter your code and select OK.
To change the phone lock code
1From stand-by select Menu >Settings
>the General tab >Security >Locks
>Phone protection >Change code.
2Enter the old code and select OK.
3Enter the new code and select OK.
4Repeat the code and select OK.
IMEI number
Keep a copy of your IMEI (International
Mobile Equipment Identity) number in
case your phone is stolen.
To view your IMEI number
•From stand-by press , , ,
, .
Troubleshooting
Some problems will require you
tocall your netwo rk operator.
For more support go to
www.sonyericsson.com/support.

Common questions

I have problems with memory
capacity or the phone is working
slowly
Restart your phone every day to free
memory or do a Master reset.
Master reset
If you select Reset settings, the
changes that you have made to
settings will be deleted.
If you select Reset all, in addition to
your changes to settings, all contacts,
messages, personal data, and content
that you have downloaded, received
or edited will also be deleted.
To reset the phone
1From stand-by select Menu >Settings
>the General tab >Master reset.
2Select an option.
3Follow the instructions that appear.
It is important that you remember your
new code. If you forget it, you have to take
your phone to your local SonyEricsson
retailer.
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