Please help me to learn on how to decode my sumsung phone

Can you give us more information... What do you mean by decoding?

It would be helpful to have more information. Model, type of phone, etc. Too much guesswork here.

But, in the meantime, maybe something on the following sites will be of help to you. But, I am just guessing because we don't have more information.

http://www.theusermanualsite.com/man...FRlmWAodcV865w

http://www.samsungtelecom.com/pdf/x497.pdf