Sony Ericsson S312 Troubleshooting, Master reset, Error messages, Menu, Cont, Cont, General, Settings, Reset all, Insert SIM, PIN blocked, From standby select

Troubleshooting

Some problems require you to call your network operator. For more support go to www.sonyericsson.com/support.

Master reset

If you experience problems with your phone, such as screen flickering, screen freezing or navigation problems, you should reset the phone. If you select Reset all, all user data such as contacts, messages, pictures and sounds are deleted.

To reset all settings

•From standby select Menu > Settings > the General tab > Reset all > Cont. > Cont.

Error messages

PIN blocked

You have entered your PIN code incorrectly three times in a row. Your SIM is now locked. Unlock your SIM with your PUK code, which is provided together with your PIN code by your network operator.

To unlock the SIM card1Enter your PUK code and select OK.2 Enter a new PIN and select OK.3 Re-enter the new PIN and select OK.Insert SIM

There is no SIM card in your phone or you may have inserted it incorrectly. Try one or more of the following:

•Remove the SIM card and insert it correctly.

•Clean the connectors on the SIM card and phone with a soft brush, a cloth or a cotton bud.

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