How to turn off or restart a Xiaomi phone (HyperOS 3)

Device

Android

Shown on

Xiaomi Redmi Note 15 Pro 5G (25080RABDG), HyperOS 3.0.308.0, Android 16

App

Settings

Real screenshots

6 of 6 steps

Checked

October 2026

Sources

1 official, linked below

Step by step

1. 

   Press Power and Volume up together

   Press the Power button and the Volume up button at the same time and keep them pressed until the menu appears. Slide the middle button up to Power off, or down to Reboot.

   Done

2. 

   Why holding Power opens Gemini

   A long press on the Power button alone opened Gemini, the Google assistant, at the bottom of the screen on our phone.

   Done

3. 

   Open Gesture shortcuts

   Go to Settings, Additional settings, Gesture shortcuts. Launch digital assistant is the first row; Power off is at the bottom, with Press the Power and Volume up buttons simultaneously.

   Done

4. 

   Choose how to open the power menu

   Tap Power off. You can pick Press and hold the Power button for 3s instead of Power and Volume up. Our phone was set to Power and Volume up, outlined in blue.

   Done

5. 

   Turn off the assistant on the Power button

   If you never use the assistant, tap Launch digital assistant in Gesture shortcuts and turn off Press and hold the Power button for 0.5s. We left it on.

   Done

6. 

   Force a restart if the phone is frozen

   The bottom of the Power off page says: Press and hold the Power button for 11 seconds to force reboot your device. Xiaomi's HyperOS 3 user guide gives 15 seconds, so keep holding if 11 is not enough.

   Done

If you do not see this option

• Want to use only the Power button? On the Power off page, choose Press and hold the Power button for 3s instead of Power and Volume up.
• Gesture shortcuts not where we show it? Xiaomi's HyperOS 3 guide gives the same route: Settings, Additional settings, Gesture shortcuts. Source: Generic User Guide for HyperOS 3.0

If this does not work

• Holding Power only opens Gemini? That is the Launch digital assistant shortcut. Press Power and Volume up together, or switch the shortcut off in step 5.
• Screen frozen and buttons do nothing? Hold the Power button for the force reboot time shown on the Power off page (11 seconds on ours). Nothing is erased. Source: Generic User Guide for HyperOS 3.0

About this guide

On HyperOS 3 a long press on the Power button starts the digital assistant (Gemini on our phone), not the power menu. The power menu has its own button combination, which you can change in Gesture shortcuts.

The screenshots are from our Redmi Note 15 Pro 5G with Xiaomi HyperOS 3.0.308.0 and Android 16, in Light mode. Every switch we changed for a picture was put back afterwards.

Good to know

Screenshot buttons are on the same page: how to take a screenshot on a Xiaomi phone.

In short: Power and Volume up together, then Power off or Reboot. Change it in Settings, Additional settings, Gesture shortcuts, Power off. Force reboot: hold Power about 11 seconds.