Your phone is not receiving any network signal, or the received signal is too weak. Contact your network operator and make sure that the network has coverage where you are.

The SIM card is not working properly. Insert your SIM card in another phone. If this works, it is probably your phone that is causing the problem. Please contact the nearest Sony Ericsson service location.

Emerg. calls only

You are within range of a network, but you are not allowed to use it. However, in an emergency, some network operators allow you to call the international emergency number 112. See Emergency calls on page 17.

PUK blocked. Contact operator. You entered your personal unblocking key code (PUK) incorrectly 10 times in a row.

Charging, alien battery

The battery that you are using is not

aSony Ericsson-approved battery. See Battery on page 69.

Important information

Sony Ericsson Consumer Web site

On www.sonyericsson.com/support is a support section where help and tips are only a few clicks away. Here you will find the latest computer software updates and tips on how to use your product more efficiently.

Service and support

From now on you will have access to a portfolio of exclusive service advantages such as:

Global and local Web sites providing support.

A global network of Call Centers.

An extensive network of Sony Ericsson service partners.

A warranty period. Learn more about the warranty conditions in this User guide.

On www.sonyericsson.com, under the support section in the language of your choice, you will find the latest support tools and information, such as software updates, Knowledge base, phone set-up and additional help when you require it.

For operator-specific services and features, please contact your network operator for more information. You can also contact our Call Centers. See the phone number for the nearest Call Center in the list below. If your country/region is not represented in the list, please contact your local dealer. (The phone numbers below were correct at the time of going to print. On www.sonyericsson.com you can always find the latest updates.

In the unlikely event that your product needs service please contact the dealer from whom it was purchased or one of our service partners. Save your original proof of purchase, you will need it if you need to claim warranty.

For a call to one of our Call Centers you will be charged according to national tariffs, including local taxes, unless the phone number is a toll-free number.

66Important information

This is the Internet version of the User's guide. © Print only for private use.

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Sony Ericsson Z750i manual Important information, Emerg. calls only, Sony Ericsson Consumer Web site Service and support