How to turn 5G on or off on a Samsung Galaxy (network mode)

By Saadat Rafiq · 2 min read · 3 steps · Published 6 October 2026

Device

Android

Shown on

Samsung Galaxy A57 5G (SM-A576B), One UI 8.5, Android 16

App

Settings

Path

Settings › Connections › Mobile networks

Real screenshots

2 of 3 steps

Checked

October 2026

Sources

1 official, linked below

Step by step

1. Open Mobile networks

   Open Settings, Connections and tap Mobile networks.

   Done

2. 

   Tap Network mode

   Network mode opens a list. Ours offers 5G preferred, 4G preferred and 3G preferred, with 5G preferred ticked. We pressed Cancel.

   Done

3. 

   Choose the mode

   5G preferred uses 5G when it can. 4G preferred turns 5G off. 3G preferred is only useful in rare cases, because calls and data are slow.

   Done

About this guide

You need a 5G phone, a plan that includes 5G and 5G coverage. Turning 5G off can save battery where the signal is weak. We only looked at these screens on our phone and changed nothing.

The screenshots are from a Samsung Galaxy A57 5G with One UI 8.5 and Android 16, in Dark mode. Other Galaxy phones on One UI 8 use the same menus; on older One UI versions a few names and positions differ.

Good to know

A 5G icon in the status bar shows you are on 5G. If you never see it, check that your plan includes 5G.

Allow 2G service, on the same page, lets the phone use old 2G networks; turning it off is a little safer, emergency calls still work.

In short: Settings, Connections, Mobile networks, Network mode: 5G preferred or 4G preferred.