PiPO M8HD - Manual (Page 33)

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When hotspot is set up , there will be an icon appearing, like this, the Wi-Fi
signal is surrounded by a white square:
Ethernet: Turn on Ethernet, connect to HOST port via the OTG cable
which is included in accessories, and then connect this OTG cable to the
Ethernet cable.
Mobile networks: Turn on ―Mobile Networks‖→ ―Data enabled‖
whether you use a 3G dongle or SIM card, it‘s required to turn on ―Data
enabled‖ for mobile data transmission .
Sound: turn off touch sound by tapping ―sound‖—―touch sounds‖
Display: To set Brightness, Wallpaper, Sleep time-out, Font size here.