My galaxy s2 has a pin lock on memo & i cant find what it is

SOURCE: i dont know the phone lock code on my phone.

the default is always one of these code try them all the last four digits of the phonenumber last programmed in the phone aka your number or 9999,1234,4321,0000,1111 if none of those work you can go the retail store for a flash they hook it to the computer and push software to the phone to correct the issue it takes five mins and its free its a common issue for them to correct if you change your lock code from the default in the future always set up a dummy contact with it in there so that you can easily look it up also please vote for me I'm trying to work my way up to expert level and I cant without your vote please

SOURCE: sph - A920 locked out by security code

Put the last 4 digits of ur phone number.If it not works it means that anyone change u r phones security settings.

SOURCE: my samsung galaxy ace is

More than likely, you will need to reset your password for your GMail to get back into your phone. Go to Google.com to reset your information.

If you are unable to do this, you will need to do a Factory Restore to your phone. WARNING: Factory Restore will erase all phone data. It will restore the phone back to the stage when you first purchased it.

To restore your phone back to factory settings do the following:

1. Power down the phone.
2. Hold the Volume Down button and press the power button.
3. A menu pops up, release the Volume Down button.
4. Press and release the volume down button to select "Clear Storage"
5. Next, Press and release the power button
6. To confirm, press the Volume Up button

The phone will run some tasks and then reboot. You may then signin with a new Gmail account. I suggest recording your new account information in a safe location for future reference.