howtosimply.com/guides/how-to-use-google-gemini-on-a-samsung-galaxy-side-button-and-app/ · Checked October 2026 · Samsung Galaxy A57 5G (SM-A576B), One UI 8.5, Android 16

In this guide

Press and hold the side button
Ask about the screen
Set the side button
If you do not see this option
If this does not work
Good to know
Sources

Quick answer

Press and hold the side button to open Gemini, then type or speak your question in Ask Gemini. If the side button opens Bixby or the power menu instead, open Settings, Advanced features, Side button and set Long press to Digital assistant.

3 of 3 steps with real screenshots · 2 official sources below

Device: Android
Shown on: Samsung Galaxy A57 5G (SM-A576B), One UI 8.5, Android 16
Starts in: The phone's buttons
Real screenshots: 3 of 3 steps
What we did: Observed: looked at each screen, changed nothing
Our phone: Shown on Galaxy A57, One UI 8.5
Checked: October 2026
Sources: 2 official, linked below

Step by step

Press and hold the side button
Gemini opens at the bottom of the screen with Ask Gemini, the microphone and Gemini Live.
Done
Ask about the screen
Share screen with Live lets Gemini see what is on the screen and talk about it.
Done
Set the side button
If holding the button does something else, open Settings, Advanced features, Side button. Long press shows Digital assistant (Google) on ours.
Done

If you do not see this option

Holding the button opens Google Assistant Samsung says that with the latest software a long press of the Side button opens Google's default assistant app, and Gemini is the default where available. Source: How to use Google Gemini on your Galaxy phone
Gemini is not offered Samsung says Gemini needs Android 10 or later, a Google Account and age 18 or over, and that it varies by country, language and model. Source: How to use Google Gemini on your Galaxy phone

If this does not work

There is no Share screen button Samsung says to hold the Side button, tap the Live icon next to the microphone and then choose Share screen or Video. Source: How to use Google Gemini on your Galaxy phone
Gemini says it is on hold Samsung says the Pause button shows Gemini is on hold. Tap the Live icon again to continue, or X to end. Source: How to use Google Gemini on your Galaxy phone

About this guide

Gemini is Google's assistant. Samsung says it needs a Google account, an internet connection and age 18 or over, and features differ by country.

Good to know

To turn the phone off when the side button opens Gemini, use the power icon in the quick panel, or How to power off your phone on the same settings page.

Bixby is Samsung's own assistant: how to turn off Bixby.

In short: Hold the side button, Ask Gemini. Settings, Advanced features, Side button, Long press: Digital assistant.

Sources

Links checked in October 2026. Menus and features can change after software updates. These steps match the version named at the top.