I can’t seem to power down my Android phone the usual way. Holding the side button only brings up Google Assistant instead of the power menu. I’m worried about battery drain and need to completely shut it off for travel and troubleshooting. What steps or settings should I check to properly turn off an Android phone?
Had this same thing on a newer Android. The side button got remapped to Assistant instead of power. Few things to try.
- Use the Power + Volume combo
On most recent phones:
- Hold Power and Volume Up together for 2–3 seconds
- Power menu should pop up
- Tap Power off
If that does nothing, try Power and Volume Down.
- Change the side button behavior in settings
Names differ a bit by brand.
On Pixel:
- Go to Settings → System → Gestures → Press and hold power button
- Switch it from “Assistant” to “Power menu”
- Now hold the side button and you get the old shutdown menu
On Samsung (One UI):
- Settings → Advanced features → Side key
- Under “Press and hold”, pick “Power off menu”
- Now hold the side key to turn it off
On Xiaomi / Oppo / others, look for:
- Settings → Additional settings / Buttons & gestures / Side key
- Find any “Press and hold” option and set it to Power menu or similar
- Use quick settings power icon
On many Android 12+ phones:
- Swipe down from top twice to open full quick settings
- Check for a power icon in the bottom corner
- Tap it, then select Power off
- Force shutdown with long hold
If none of the menus come up and you are fine with a hard shutdown:
- Hold the power button for 10–15 seconds
- Screen should go black
- Wait a few more seconds so it stops completely
- If you are worried about battery for travel
If you cannot find any of the above:
- Turn on Airplane mode
- Turn off Bluetooth, WiFi, NFC
- Lower screen brightness
- Turn on Battery saver
That will slow battery drain a lot, even if you cannot fully power off.
If you share your phone brand and model, people here will prob drop exact menu steps.
Couple more angles you can try that weren’t covered by @caminantenocturno:
- Use the lockscreen shortcut
On a lot of newer Android skins, if the phone is locked, you can:
- Press the side button once to lock the screen
- Then press and hold it on the lockscreen for a few seconds
- Some brands only show the power menu from the lockscreen, not while it’s unlocked
- Try the “Reboot” path instead of direct power off
If you can get to any reboot option (like from quick settings or a side-key menu that only shows “Restart”):
- Tap Restart
- As soon as the screen goes black and the phone starts to boot again, hold the power button down
- Many phones will abort the boot and stay off if you hold power right when the logo shows up
- Use ADB poweroff if you have a laptop
This is more technical, but if you’re desperate and near a computer:
-
On the phone:
- Settings → About phone → tap “Build number” 7 times to unlock Developer options (if not already)
- Back out → System → Developer options → enable “USB debugging”
-
On computer (with Android platform tools installed):
- Connect phone via USB
- In a terminal / cmd:
adb devices(accept the prompt on phone)adb shell reboot -p
That command powers it off completely.
- Check your accessibility shortcuts
Sometimes the power menu gets hijacked by accessibility / shortcut settings:
- Settings → Accessibility
- Look for things like “Power button ends call,” “Accessibility shortcut,” “Side key shortcut”
Try disabling any custom actions bound to long-press or double-press.
Then test the side button again.
- If battery drain is the only reason
Honestly, for travel, a modern phone in airplane mode + battery saver with screen off barely sips power. You can even:
- Airplane mode ON
- Turn off WiFi, Bluetooth, NFC, hotspot
- Disable “Wake for notifications” / AOD if your phone has Always On Display
Over a long flight or a day in a bag, battery drop is usually tiny, so I would not stress too much if you cannot fully power it down right away.
If you share exact brand/model and Android version, people can prob point to the one stupidly named setting your manufacturer hid three menus deep.
Couple of extra angles that might help, without rehashing what @voyageurdubois and @caminantenocturno already walked through:
- Check for a “virtual power button” in accessibility
Some Android skins add a floating or on‑screen power control.
- Settings → Accessibility → Interaction & dexterity / Accessibility menu
- Enable “Accessibility menu shortcut”
- You get a little human‑icon button or a shortcut in the nav bar
- Tap it and look for “Power” or “Power menu” to fully shut down
- Disable Assistant’s hold‑to‑launch from its own settings
Even if system settings show the side key as mapped to power, Assistant can sometimes intercept it.
- Open Google app → profile icon → Settings → Google Assistant
- Under “General” or “Assistant devices,” turn off “Launch Assistant by holding power button” or similar
- Then try the long‑press again
- Remove any OEM device‑care / security apps that hijack power
On some brands, “device protection” or parental control apps can override power behavior.
- Settings → Apps → Special access
- Look at “Device admin apps,” “All files access,” or “Usage access”
- Temporarily disable anything security‑ or parental‑control‑related, then test your power button
- Test the physical button itself
To make sure this is not a hardware issue:
- Install a simple button‑tester app from the Play Store
- Check that Power registers consistently when pressed
If it does not, then you are fighting a failing button, not a software remap.
- Fallback if you really must avoid battery drain
If you cannot fully power off before travel:
- Airplane mode on
- Battery saver on
- Turn off Always On Display / wake‑screen features
- Disable background data sync for heavy apps (mail, social, maps)
Over many hours this is surprisingly close to having the phone off.
On the “product title” side, using a clear reference like “Android phone power menu troubleshooting” in your own notes or search queries can make guides easier to find later, but it does not change the behavior itself.
Pros of this “Android phone power menu troubleshooting” angle
- Uses built‑in settings, no PC needed
- Can uncover the exact feature or toggle causing the remap
- Helps long‑term, not just for this trip
Cons
- Menu names vary a lot by brand and Android version
- If your button is physically worn out, none of these will fully fix it
Compared with @voyageurdubois and @caminantenocturno, these suggestions lean more on accessibility, Assistant’s own config, and basic hardware checks, so trying all three sets together should cover almost every software cause. If you share brand + model, people can usually point to the precise menu path that your manufacturer decided to hide.