There are actually two codes that you can use to reset the password on a Samsung Impression A877. If you dial either *2767*3855# or *2767*2878#, this will reset your security password. Please note this will reset your security code to 0000.
I Forgot My A877 Samsung Impression Security Password. What Do I Do?
I bought a phone from a friend nd he forgot the password how can I unlock the phone
Call or go to your thingy like either rogers-at&t-bell-telus and what ever else they wil tell you but you will have to proove its your phone first