How do I fix preferred network type?

Best overall: T-Mobile T-Mobile’s 5G network covers more than 305 million people in the U.S., including a lot of coverage in rural areas. This is mostly thanks to T-Mobile’s low-band 600Mhz (n71) spectrum, which offers excellent coverage and speeds comparable to fast LTE.

Select Settings

First, choose “Settings” from your “Apps.” Tap on “More” > “Mobile Networks” > “Preferred Network Type.” Here, you can choose between 4G, 3G, or 2G . Although 4G is recommended, as stated above, it can use more of your data more quickly in a given time frame.