Phone playing up?
If your Galaxy Note keeps freezing, you’ve forgotten the security codes or it just doesn’t work, take it back to factory settings.Important: This wipes everything on your phone, so if you’re not locked out try backing it up first. This won’t wipe your SIM.
Switch your phone off by pushing and holding the power button. If your phone has frozen, remove and replace the battery.
With the phone still off, hold down the Power, Volume Up and Menu buttons at the same time for approximately 10 seconds. You can release the buttons when the Android logo appears on the screen. You should then see the unlock/reset menu.
To navigate through this menu, use the volume up/down buttons to scroll up and down and the power button to confirm selections.
Scroll down and select Wipe Data/Factory Reset.
Select Yes - Delete All User Data. Your phone will reset to factory settings.
Select Reboot System Now.