sansui u31 successfully remove pattern lock

Analysis of USB port,Please insert phone USB cable.
Connecting device…
Device connection is successful.

Root process may restart the device several times, keep your device and data lines connected correctly.
Getting Root privileges, please wait…
Device Model: U31
Android Release: 4.2.2

Root Success,the device is restartting.

Being cleared, please wait…
>>Clear OK, device is restartting.