I came across this PDF file used for testing mobile phone signal strength in the field.
To do this, it covers how to access the programming menu which is used by your carrier to connect your phone to their service. To get to this menu, it gives you the default security/unlock code to most phones where needed. It has been my experience that both Verizon and Rogers do not change their codes from the defaults. Thanks to this I am using a Verison branded Motorola E815 with my MTS carrier. There are usually two codes, one 6 digit and one 4 digit. The 4 digit number is often the last four digits of your own number. For example the code for 555-7104 would be 7104. So if your interested in a new phone and plan to buy one from a friend or on eBay, stick to those branded phones and you should have little trouble switching it to your new carrier.
The PDF can be found at this link:
http://www.tessco.com/yts/customerservice/techsupport/datasheets/pdf/FieldTestModes.pdf
I have forget my security code and now i can’t get acess in the menu my phone is a samsung sgh x820
Thats a pretty sleek looking phone. My only suggestion would be to try the instructions used for other Samsung phones. And if you code is not the default, you may need to contact your service provider. Using the serial number and model they can usually find the code for you. They may charge you for this, since some places are like that, but it’s probably better than a useless phone.
i forgot my security code for my motorola razor phone i cant get into my menue