How do I get back into my samsung galaxy after I forgot the passcode?

SOURCE: Password on my Samsung Z510

ya u can dial *2767*2878# from ur cell phone without sim card it will b gets off then insert sim card and switch on the cell phone it will reset all the defaults then it will ask for a security key just enter 0000 as passward problum is solved

SOURCE: Need to reset 4 digit passcode for samsung r450?

Usually the passcode is the last 4 digits of your phone # .

SOURCE: master reset code for samsung u900

type *2767*3855# into your keypad at the home screen and the phone will reset

SOURCE: lost password on samsung gravity t 456 how do i

you cant reset it... open the back of the phone and take out the sim card... you will have to buy a new one... all ur data will be lost but if you won't to useyour phone i think this is the only way unless you can find the master code to the phone on the manual or online but it is really hard to find

SOURCE: I forgot the Samsung Impression

SECURITY CODE:

If you are talking about the security lock code to enter into the phone then once it is lost nothing can be done except flashing the mobile . Because if anybody can give the security code created then who ever who steals your phone can get into it and get your valuable information.

So as safety precaution to avoid that they have designed it such that if you forget the security lock you have to reset the mobile memory by flashing the mobile at an authorized service center.So while flashing the mobile all the data in the mobile memory will be lost and you can again start using the mobile.