reset password
To reset the phone lock on the Samsung Galaxy s2 go to the settings section and select password options. then select password reset and enter your current password followed the password you would like to change it to.
reset code
Go onto the website or samsung dealer
master password yes
One can reset the password on a Samsung GT-C3053 easily if they know the original pass code to be able to change it. If one does not know the original passcode the phone will have to have a hard reset performed.
0000
click on 'reset password' & follow the instructions
go to settings , then security , and it is in that list
Just change your password.
You have to have the phone company reset it, unless you know the password, then it depends on the cell phone
To unlock a Samsung Duos password, you can use the device's built-in options, such as the "Forgot Password" feature, which may allow you to reset it using your Google account or Samsung account credentials. If that doesn't work, performing a factory reset through recovery mode can also remove the password, but this will erase all data on the device. Additionally, you can seek assistance from Samsung customer support or a professional technician.