just try the obvious codes ...1234, 0000, ****
OR
Here is some great source to solve any kinds of Cellular Phones problem.
» Nokia Solution » Motorola Solution » Sony Ericssion Solution » LG Solution » Samsung Somution
Here is some another Great source to UNLOCK any kinds of Cellular Phones.
» Nokia Unlock Code » Motorola Unlock Code » Sony Ericssion Unlock Code » LG Unlock Code » Samsung Unlock Code
OR
you enter wrong password for more then 5 times,it ll ask you to enter the puk number....now call your customer care and get the puk number...enter the puk number in the space given for password....thats it...problem is fixed If you had locked your mobile then update the formware all saved passwords will be deleted
then