The power button on Xiaomi does not work: a step-by-step guide

When the switch on a Xiaomi, Redmi or POCO smartphone suddenly stops responding, it always takes you by surprise. The device turns into a black rectangle, and the user faces a panicked fear of data loss. Most often the problem lies in the mechanical wear of the plume or the sticking of the button itself, but you should not immediately carry the gadget to the service.

There are a number of software and hardware methods that allow you to start the system even with a completely non-functioning physical key, and in this article we will discuss in detail the algorithms of actions that will help you revive the smartphone or at least copy important data before sending it for repair.

The first thing you need to do is to assess the nature of the malfunction, and the button may not work because of a simple software failure when the system stops reading clicks, or because of physical damage to the contact group, and this will determine the further strategy for restoring the functionality of your Mi device.

Diagnosis and primary actions

Before we get to the tricky part, we need to rule out software freezes. Often users confuse a button break with a dead state. If the screen is black and doesn't respond to touch, try plugging the device into the charger. The appearance of the Mi logo or battery indicator suggests that the hardware is probably intact.

Notice the vibrator behavior. If you connect to a PC or charge your phone vibrates but the screen is dark, there may be a problem deeper than just a button. In some cases, prolonged retention of the key combination helps. Try to hold the up and down volume buttons simultaneously along with the USB cable connected.

If the phone does respond to charging but doesn't turn on, it could indicate a deep discharge or failure of the power controller. Leave the smartphone charging for at least 30-40 minutes, even if nothing is displayed on the screen. Sometimes the system takes time to accumulate the minimum charge to start the Bootloader.

It is important to understand that frequent and strong pressure on a broken button can lead to the final destruction of the contact pad on the motherboard. If light presses do not help, stop the mechanical action and move to software methods.

How to turn on Xiaomi without a power button

The most common question users ask is: how to start a phone if the button is physically broken? In the Android ecosystem, and in particular in the shell of MIUI or HyperOS, there are special boot modes that are activated by volume key combinations.

To turn your smartphone into Recovery or Fastboot mode, you don't need a power button. Just press down or up the volume button and then plug in a USB cable going to the computer. The computer must be on and have ADB drivers installed or just identify the connected device.

If the phone has gone into Fastboot mode (there will be a bunny in an orange hat or a Fastboot sign on the screen), you have several ways: You can try selecting Recovery using volume buttons (if the sensor doesn't work) and confirm choosing the same volume button that works. Recovery menu often has a reboot option that can start the system.

⚠️ Warning: Do not select "Wipe Data" from the Recovery menu unless you have a backup! this will result in the complete removal of all photos, contacts and apps.

There's also a hot-connect method. Press the volume button (any one) and, without letting it go, plug the charging cable. Hold the button for a few seconds after you plug it in. On some Redmi Note and Poco F series, this causes the device to turn on normally.

Using ADB to run the system

If mechanical methods fail, the Android Debug Bridge (ADB) toolkit comes to the rescue, which requires that the smartphone previously be enabled to debug USB. If this feature is activated, the chances of success are greatly increased.

You'll need a Windows computer, a USB cable, and a folder with ADB platform tools. Connect the phone that's turned off (or got stuck) to your PC. If the computer makes a device connection sound, you've got a connection. Open the command line in the ADB folder and type in a command to check the connection.

adb devices

If the list shows a device with device status, you're in luck. Type a command to reboot:

adb reboot

This command forces the signal to restart the system, ignoring the state of the physical button. In some cases, if the phone is in Fastboot mode, you can try the command fastboot reboot, which will also take the device out of boot mode.

Hardware closing contacts (for advanced)

For those who are not afraid to open the case, there is a method of directly closing the contacts on the board, which is effective when the button is completely detached or the train is broken, you have to remove the back cover and turn off the battery.

On the motherboard, there are two contacts under the power button, and when you press the button, they close, they start the current. You can simulate this press by carefully closing these contacts with tweezers or wiring, and you need to do this quickly and carefully so that you don't damage the adjacent elements.

• 🔧 Remove the back cover and disconnect the battery plume.
• 🔍 Find the contacts of the power button on the board (often signed as PWR or ON/OFF).
• ⚡ Close the contacts with tweezers on 1-2 seconds.
• 📱 Immediately after the logo appears, remove the tweezers.

This method requires a certain skill, and if you're not confident in your abilities, it's best not to take risks, because a sloppy circuit can short-circuit and cause the motherboard to fail, and the warranty on the device will be lost.

An alternative to tweezers is thin wiring soldered to the button contacts and displayed outside the case, which will allow you to turn on the phone indiscriminately every time, but requires the skills of soldering chips.

Setting up the turn on schedule and alarm

If you've managed to turn on your phone with one of the methods described above, your priority is to set up an automatic turn on so you don't have to suffer with the button in the future. MIUI There is a built-in function "On and off on schedule».

Go to Settings → Battery → Scheduled turn on and off. Set a time like 8:00 a.m. Now, even if the phone turns off at night or runs out, it will turn on at a predetermined time. This is a critical setting for owners of devices with a faulty button.

You can also use the alarm function. Even when it's off, many Xiaomi smartphones are able to turn on to go off as an alarm clock. Set an alarm for the near future, turn off the phone and wait.

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Use the Tasker or MacroDroid app to create a script that simulates the click of a button on the screen if you have root rights, and this will allow you to create a virtual button on the display to manage power.

Another life hack is connecting to a computer, and some phone models turn on automatically when you connect to a PC, if you have Charge or File Transfer in the USB settings, and try connecting your phone to a laptop charger instead of an outlet.

Table of codes and combinations for different models

Different Xiaomi models may react differently to keyboard combinations. Below is a table that will help you navigate depending on your device.

Importantly, in Recovery mode, the touchscreen may not work, and is controlled by volume buttons (up/down for movement, long press for selection), although newer versions of MIUI often support the touch.

If neither of these combinations works, it may not be the power button that is the problem, but the button plume or the controller itself, in which case the software methods are powerless and the device needs to be disassembled.

Prevention and interim solutions

Until you change the button, try to minimize the number of phone shutdowns. Use sleep mode, not shutdown completely. Also install screen power management apps like Button Mapper or Power Button to Volume Button.

These apps allow you to reassign functions, for example, double-clicking the volume button can lock the screen or trigger the shutdown menu, which will save the situation if the standard button finally fails.

⚠️ Note: When installing applications from unknown sources (not Google Play), be careful. download software only from trusted resources, such as: 4PDA GitHub to prevent viruses from infecting the system.

Regularly back up your data to the Mi Cloud or your computer. If the button stops working permanently and your phone runs out, it may not be possible to turn it on without repair and the data will be lost.

When is it time to bring it to the service?

If none of the software methods worked, and the phone doesn't respond to the connection to the PC, it's likely a hardware problem, it could be plume drainage, contact oxidation after moisture hits, or physical wear of the button membrane.

Replacing the power button is an inexpensive and quick procedure in most service centers. The cost of the part is usually low, the bulk of the price is the work of the disassembler and soldererer (if the button is soldered into a board, not on a plume).

Don't delay repairs if the phone shuts down or reboots constantly.Unstable button contact can cause chaotic signals to the board, which is harmful to the power controller in the long run.

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Replacing the power button with Xiaomi is a standard procedure that is often cheaper than buying a new charging plume if the problem is precisely the mechanics.

Frequently Asked Questions (FAQ)