Please Note: We try to provide every kind of tips and secrets related to various Sony Ericsson Mobile Models including Sony Ericsson GF768 Secrets, Sony Ericsson T28 Secrets and Sony Ericsson T18 Secrets. All these Secrets are taken from trusted sources and we have also tested many of them but still we can’t guarantee if they will work properly for you. Feel free to take these tips and try on your own risk. We won’t be held responsible for any damages caused to your mobile phone. Hopefully nothing such will happen

Sony Ericsson GF768 Secrets:

To return the language back to english on the ericsson GF768, just press left ( <– ), zero four times (0,0,0,0), and then right ( –> ).

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Sony Ericsson T28 Secrets:

*#06# for checking the IMEI (International Mobile Equipment Identity)

>*<<*<* for checking the firmware revision information (software release)

>*<<*<*> 1-row text strings. if pressing yes you can check the phones text programming in currently selected language.

>*<<*<*>> n-row text strings. if pressing yes you can check the phones text programming in currently selected language.

The Service Provider (SP) Lock:

The Service Provider (SP) Lock menu is used to lock the cell phone to the SP’s SIM card. Once the cell phone is locked to a specific operator, if one inserts a SIM card from a different operator the phone will refuse to accept it! The cell phone will however accept another SIM card from the same operator.

To activate/deactivate this lock one needs a special secret code that is not available to the end user.

Here is how to activate the menu:

<**< Lock to Network? if pressing yes you have 5 attempts to enter NCK.

<**<< Lock to Network subset? if pressing yes you have 5 attempts to enter NSCK.

Warning: Your phone can be locked to a service provider FOREVER by doing this! If an invalid code is entered all five times, the menu will exit and be deactivated! Any further attempt to activate the NCK/NSCK lock Menu will result in the response “Not allowed”! However the NCK/NSCK lock can be recover through a direct clearing in the EEPROM.

Shortcut for Last Dialed call menu:

If you for some reason don’t want to enter the ‘Last Dialed calls menu’ by using the ‘YES’ key you can use the following key stroke instead: First ‘0′ then ‘#’.

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Sony Ericsson T18 Secrets:

*#06# for checking the IMEI (International Mobile Equipment Identity) Information you get from the IMEI:

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TAC FAC SNR SP

TAC = Type approval code

FAC = Final assembly code

SNR = Serial number

SP = Spare

To access SIM-Locking menu of your phone, press: < * [CLR] <

Be careful or you may lock your phone.

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