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Get your card back. If not do a factory reset.
1.Power off your phone
2.Press together volume up + home button + power button
3.Release your fingers of the phone when Samsung logo appear
4.Choose with volume buttons "wipe data/factory reset" and select it with power button
5.Choose "yes" with volume buttons and select it with power button
6.Wait untiil format is complete
8.Wait until the phone restarts
From the home screen, press the Menu button (1st one on the left with 3 bars) then tap settings, then location and security, then set up screen lock, pattern. There you should be able to turn it off/on
Turn off . Press and hold POWER + ENTER button for reset menu.
Factory reset with Volume Down button and press Power to reset. All data will be lost! there is an alternate method too friend
Use this method to hard reset your Samsung GT-S Galaxy mini phone: Enter *2767*3855#. Warning! All your data including contacts, messages etc. will be lost! Copy all your necessary data/Contacts/Messages etc. to SIM or make backup to your PC before full reset! Take out SIM card before full reset.
Samsung GT-S5570 Galaxy mini download mode if you want to install eg. Gingerbread
Press and hold Volume DOWN + HOME + POWER ON S5570
Restart your device to clear any temporary software bugs
If you know the hard reset with buttons / keys, pls leave a comment. All comments are welcome!
Your device freezes or has fatal errors
If your device freezes or hangs, you may need to close programs or reset the device to regain functionality. If your device is frozen and unresponsive, press and hold [Power] for 8-10 seconds. The device will reboot automatically.
If this does not solve the problem, perform a factory data reset. In Idle mode, open the application list and select Settings :Privacy
:Factory data reset :Reset phone : Erase everything.
Clear storage• : Erase the credential contents from the device and reset the password
Set an unlock pattern
Once you set a screen lock, your device will require an unlock code each time you turn it on or unlock the touch screen
Settings Location and security Set screen lock : Pattern
If you forget your PIN or password, bring your device to a Samsung Service Centre to reset it.
Set an unlock PIN code
Settings Location and security :: Set screen lock : PIN
Set an unlock password
Settings Location and security :Set screen lock : Password.
You can hard reset software firmware update your Samsung GT-s Galaxy mini phone
Hope it helps u
Turn off ur phone if you can. Connect your phone via usb to your computer and make sure your running the latest version of itunes. If you cant then just hold the top lock button and the home button until the screen turns off. Continue pressing until u see the apple icon. Release the top lock button but continue holding the home button. It should switch to an icon that shows a usb connecting to an itunes icon and will say "connect to itunes". Restore via your itunes on the pc/mac.
It means that when you turn your phone, the screen is locked from rotating with it. To change this, Press home twice quickly, slide left & then press the icon with the lock in the middle of the circular arrow.