Why the power button on the Redmi 4X may fail
The on/off button on the Xiaomi Redmi 4X is one of the most vulnerable parts of the smartphone. Over time, it starts to stick, fails to work or completely stops responding to presses. The causes of failure are diverse, from banal wear of the mechanism to moisture or mechanical damage after falls. Especially often the problem occurs in devices that have been actively used for 3-5 years, just as many Redmi 4X released in 2017.
To make matters worse, without a power button, you canβt turn off your smartphone in the standard way, and sometimes you need to, like before you change your battery, reset your phone, or freeze. In this article, weβll look at all the available ways to turn off the Redmi 4X without using the power button, including software and hardware solutions, and tell you which ones are safe and which ones can lead to data loss or damage to the device.
It is important to understand that some methods require pre-preparedness (for example, enabled debugging over USB), so if your smartphone is still working, read the instructions in advance to be ready for force majeure.
Method 1: Turn off via the settings menu (if the screen is running)
The easiest and safest method is to use the built-in Android features, which is suitable if you have a touch screen and can interact with the interface.
- π± Open Settings (cog icon on the home screen or in the application menu).
- π§ Go to About Phone (usually at the bottom of the list).
- βοΈ Tap on the item "Switch off" or "Reboot" (depending on the version) MIUI).
- π Confirm the action by selecting Turn off.
If your version of MIUI does not have a direct βSwitch Offβ option, try an alternative path:
- Hold the Volume Up + Volume Down button simultaneously for 5-7 seconds.
- On some firmware, this will trigger a reboot menu where you can select Power off.
βοΈ Preparing to turn off through the menu
β οΈ Note: If the smartphone is connected to charging, some versions MIUI They block the shutdown function through the menu.
Method 2: Forced shutdown by battery removal
The Xiaomi Redmi 4X battery is removable, which allows you to physically turn off the power, which works guaranteed, but requires care not to damage the plumes or contacts.
- π οΈ Prepare tools: a plastic spatula (mediator) or a thin screwdriver, tweezers. Metal objects are not recommended for use, they can damage the case or board.
- π Remove the back cover: Start at the bottom edge where the SIM card connectors are located. Carefully tuck the lid and drive the blade along the body, separating the latches. Don't force -- if the lid doesn't respond, check if all latches are disconnected.
Disconnect the battery:
- There's a little connector underneath the battery plume, and you need to gently put it in a plastic tool.
- Donβt pull the wires, just the connector itself!
- β»οΈ Wait. 10-15 Seconds and plug the battery back in.
| Action. | Risks. | How to minimize |
|---|---|---|
| Removal of the lid | Latches damage, scratches on the body | Use a plastic spatula, heat the edge of the cover with a hair dryer (not higher than 60 Β° C) |
| Battery disconnection | Trail break, short circuit. | Working with gloves, using a dielectric tool |
| Reverse assembly | Bad contact, broken charging | Check the fixation of the connector, test charging after assembly |
β οΈ Warning: If the battery is not turned on after the battery is removed, check if the plume is connected correctly. Sometimes the contacts oxidize and need to be cleaned with alcohol.
What to do if the battery is swelling?
Method 3: Use ADB (for advanced users)
If your Redmi 4X has USB debugging enabled (ADB), you can turn it off using a command from your computer, a method that requires pre-tuning, but works even if the screen doesn't respond to touch.
πΉ Conditions:
- π₯οΈ On the PC installed Xiaomi drivers and tools ADB.
- π Debugging by USB activated in the developer settings (Settings) β The phone. β Version. MIUI (tap) β Developer settings β Debugging by USB).
- πΆ The smartphone is connected to the PC via cable and is recognized by the system.
π Instructions:
- Open the command line (Windows) or the terminal (Linux/macOS).
- Enter the command to check the connection: Adb devices must appear serial number of your Redmi 4X.
- Execute the shutdown command: adb shell reboot -p
If the team doesnβt work, try an alternative:
adb shell input keyevent 26(Emulating the press of the power button.)
π‘
If ADB doesnβt see the device, try reinstalling drivers, using Xiaomiβs original cable, or enabling Charging Only and Back File Transfer in the notification curtain.
β οΈ Attention: If debugging is on USB It wasn't activated in advance, it won't work. Don't try to activate it on a locked screen, it could cause a data reset!
Method 4: Gestures and special features
MIUI has hidden features that allow you to turn off your smartphone without a power button, and one of them is a turn off gesture that you can set up in advance. If you haven't done that, but the screen is working, try the following options:
- π Triple touch: Go to Settings β Special facilities β Triple touch gesture and set the action to turn off.
- π Reboot button in curtain: Swipe down from the top edge of the screen, find the power icon (if any) and hold it.
- π± Voice Assistant: Activate Google Assistant or Alice and say, Turn off your phone".
If the gestures are not set up but you have access to Quick Settings, try this trick:
- Swipe down from the top edge twice to open the full notification bar.
- Find the Flight Mode icon and activate it.
- Wait 10 seconds and turn off flight mode again.
- Sometimes this leads to a system reboot, after which you can turn off the phone in a standard way.
Method 5: Discharge the battery to zero
The last resort, which works all the time but takes a long time, is to completely drain the battery, which is suitable if other methods are not available and the smartphone needs to be turned off urgently (for example, for repairs).
- π Activate energy-intensive functions: Turn on the mobile Internet and GPS. Run navigation (like Google Maps) and high-resolution video. Increase the screen brightness to maximum.
- π Turn off charging and don't plug in the cable even if a low charge warning appears.
- β³ Wait until the smartphone turns off on its own (can take 1 to 4 hours).
β οΈ Warning: Frequent discharges of up to 0% are harmful to lithium-ion batteries. After such a shutdown, be sure to charge your phone to 100% before your next use to restore calibration of the battery controller.
If the smartphone doesn't turn on after discharging, plug it into charging for 15-20 minutes before trying to start up. Sometimes the power controller blocks the power on when the voltage is too low.
What if none of the methods worked?
If all of these methods didn't work, it's probably deeper than just a power button that doesn't work. Here are the possible causes and solutions:
| Symptoms. | Probable cause | Decision |
|---|---|---|
| The phone doesn't respond to anything, the screen is black. | Hardware failure of board or battery | Bring to the service for multimeter diagnostics |
| The screen is working, but the commands are not executed. | Firmware failure or system freeze | Try Hard Reset (Reset via Recovery) |
| The phone is warming, discharges quickly | Short circuit or bloated battery | Remove the battery immediately, do not use it! |
In such cases, it is recommended that:
- π§ Contact the service center (especially if the phone is guaranteed).
- π Buy a new power button (worth it) ~300-500 RUB) and replace it yourself or with the help of a master.
- π± Use your phone without turning off if itβs a temporary solution (but remember that running continuously without rebooting can lead to slowdowns).
π‘
If the power button on the Redmi 4X is out of order and the phone is still working, set up alternative ways to turn off (ADBs) in advance, which will save time and nerves in the future.