Choose network mode
There may be different network modes available depending on where you are. The network mode influences the data speeds your tablet can achieve.
Find "Mobile Data Options"
Tap Mobile Data.
Tap Mobile Data Options.
Select network mode
Tap the indicator next to "Enable 4G" to turn the function on or off.
If you turn off 4G, your tablet automatically switches between 3G and 2G provided that you're within range of a 3G network.
Return to the home screen
Tap the Home key to return to the home screen.