If you have forgotten your Samsung Galaxy S3 mini i8190 unlock password or pattern, you can simply auto-reset and wipe all its previous data yourself. This is called, wiping data or factory resetting.
To do this, follow steps below:
1.Turn Your Phone In Switch Off Mode.
2.Press and hold Volume up + and Volume Down - and Home key then press and hold Power key Simultaneously.
3.Do not release any key until you see Samsung logo.
4.When Recovery mood appears Select Wipe data and press Power key
5.Select Yes Delete All user Data and press again power key
6.Wait and Select Reboot Device Option
7. Now Hard reset done
