i50 T1030 Factory Reset

How do I factory reset this i50 tablet T1020 or T1030?  I have forgotten my pin.

You can try pressing and holding the volume down button to turn on the phone. When the robot falls interface appears, press the power button + volume up button to enter recovery mode, and then execute the two options at the beginning of wipe to restore the machine to factory settings. (Different models of Spreadtrum machines may be different. You can also press and hold the power button for 3 seconds, then quickly press and hold the volume down button until the machine startup screen appears. Release the power button. When the robot falls to the ground interface appears, release the volume down button. button) After shutting down the machine, follow the above method and try pressing the button to enter recovery mode to reset the system.