Troubleshooting; Common Questions - Sony Ericsson Z780i User Manual

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To unlock the phone
Enter your code and select OK.
To change the phone lock code
1
From standby select
> the
General
tab >
>
Phone protection
2
Enter the old code and select OK.
3
Enter the new code and select OK.
4
Repeat 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 standby press
,
.
66

Troubleshooting

This is the Internet version of the User's guide. © Print only for private use.
Menu
>
Settings
Security
>
Locks
>
Change
code.
,
,
Troubleshooting
Some problems will require you to call
your network 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
If you select
changes that you have made to
,
settings will be deleted.
If you select
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
1
From standby select
> the
General
2
Select an option.
3
Follow the instructions that appear.
Master
reset.
Reset
settings, the
Reset
all, in addition to
Menu
>
Settings
tab >
Master
reset.

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