How to unlock the phone if we forget the patten lock?

Now-a-days it's the smart phone generation.Every smartphone user secures their mobile with pattern locks.Sometimes we may forget the pattern or may be intensive trying of your friends or family members to unlock the pattern may result in disabling of pattern lock. What to do then? Yes,your answer is simple, just login with your registered mail-id and restore it.But what to do if you forget the login details??? Now the screw tightens.What must be done to unlock the phone?

 There's a way to restore your phone,but this may resets all the user data and settings.(which is similar to 'Restore Factory Settings').All the data residing in phone memory would be lost.But the data in the SD card remains as it is.Now let's see this trick..

• If you are using an android phone first shutdown the locked phone.
• Now long press the 'Volume Up' button then you will see 'Android Recovery Screen'.
• If you didn't get it then don't worry.There's other way too.Long press the shutdown button,Volume Up button along with Home Screen button.This time you will surely see the recovery screen of android.
• On the screen you can see Wipe data/factory reset.Click on 'Yes' option.With this total user data will be cleared and you will again see the recovery screen.
• Now select 'Reboot System now' option from the menu.
• This results in opening/starting of your phone as the way it was when it was bought newly.
• Now your phone has been restored.If you had already a backup of your user data you can synchronize it.

That's it...you can now use your phone as usually but note that it's important to have user data backup to be stored in SD card so that your phone can be restored to its former state as it was before reset.