Reset Tango Tablet to factory settings

Question

Received new Tango tablet, recharged the device. At first Power Up the device is locked. Attempted power up with long press power button and also with power and volume up and/or down.

What is the factory settings sequence ?

Answer 1

When Device is power off. Press Power + Volume up + Volume down both at the same time till screen turn light.

It should show you the Bootloader Menu With Options

Continue
Fastboot Protocol
Recovery node
Reboot
Power off
Force Recovery

For Factory data reset use Volume "down" and "up" to Recovery node and press Power key it will bring you to the Android system recovery screen.