A black screen when the smartphone is running, when the device vibrates from calls and makes notification sounds, but does not display a picture, requires an immediate power off to prevent the battery from completely draining or attempting a hard reboot, since the standard shutdown menu becomes inaccessible due to the inability to visually control touches.
Fortunately, the operating system Android provides several hardware and software power management methods that do not depend on the performance of the matrix. We will consider all possible scenarios: from a banal keyboard shortcut to complex computer manipulations. It is important to understand that the choice of method depends on the model of your device and the type of failure - whether the matrix is physically broken or there is a software failure of the display driver.
Before moving on to radical measures, you should try to use the standard recovery functions provided by the manufacturer. Sometimes the system simply freezes while displaying the image, and a forced reboot can bring the screen back to life. If the display is physically broken (black spot, cracks, lack of backlight), then shutdown methods will be aimed solely at saving data and stopping the device before sending it in for repair.
Hard reset method (Hard Reset buttons)
The very first and obvious method that every user should try is using a physical key combination. On the vast majority of smartphones, be it budget Xiaomi or flagship Samsung, has a forced reboot function. It works at the level of a low-level power controller and does not require a response from the touch layer.
To activate this function, you need to hold down the power button and hold it for quite a long time. Unlike the usual call to the shutdown menu, which appears after 2-3 seconds, the mode Hard Reset activates only after a long press. This usually takes 10 to 20 seconds of continuously holding the button. At this point, the device is forcibly de-energized and immediately begins the boot cycle again.
⚠️ Attention: If your smartphone is in fast charging mode, sometimes long pressing the power button may not work immediately due to the characteristics of the power controller. In this case, try disconnecting the charging cable for a couple of seconds, and then repeat the procedure of holding the button.
If the standard holding of the power button does not produce results, try combined presses. Different manufacturers use different circuits for emergency shutdown. For example, on some models Google Pixel or Moto requires simultaneously pressing the volume down key and the power button. This combination often emulates removing the battery, which was important for older phones.
If the screen goes dark, but vibration is felt when pressing buttons, then the touchscreen or image controller is faulty, but the system itself is alive. In this case, the button method is your only chance to quickly solve the problem.
It is worth considering that on some modern shells, such as One UI from Samsung or MIUI, the duration of pressing to reboot can be programmatically limited or changed in the accessibility settings. If you've previously customized the accessibility menu, check to see if the power button functionality is disabled there. However, with a completely black screen it is impossible to check this, so the only method left is to try the combinations.
Using Recovery mode to shut down
If a normal reboot does not help or the device is stuck in a boot loop, recovery mode, known as Recovery Mode, comes to the rescue. This is a special environment that boots separately from the main operating system and has its own minimalistic interface. Even if the main display is not working, in Recovery mode the backlight often turns on, allowing you to see the control menu.
To enter this mode, you need to turn off the phone (if it is on, wait for the battery to discharge or use the method with the buttons above), and then hold down a specific key combination when turning it on. Most often this is the power button along with the volume up button (Volume Up). On devices Huawei or Honor sometimes you need to connect the USB cable to the computer at the moment you press the keys.
Once in the Recovery menu, you will see a list of options, which are controlled by the volume buttons (up and down), and the choice is confirmed by the power button. Navigation here is completely hardware-based and does not depend on the sensor. You need to find the item Power off or Turn off. Selecting this item will correctly terminate all processes and de-energize the device.
| Smartphone brand | Input combination | Additional condition |
|---|---|---|
| Samsung | Power + Bixby + Volume Up | Requires a USB cable to be connected to the PC |
| Xiaomi / Redmi | Power + Volume Up | No additional conditions |
| Google Pixel | Power + Volume Down | Then press Volume Up to selection |
| OnePlus | Power + Volume Down | Select language before menu |
⚠️ Attention: In Recovery mode, do not select item
Wipe data/factory resetif your goal is simply to turn off the phone. This item will delete all your data without the possibility of recovery. Be extremely careful when navigating with the volume buttons.
The Recovery interface may differ depending on the Android version and custom firmware. In stock Android, menus are often presented as a text list on a black background with blue or orange headings. In custom recovery, such as TWRP, the interface may be more graphical, but the principle of button control remains the same. If the screen still does not light up in Recovery mode, then the problem is hardware in nature at the level of the cable or the matrix itself.
Why can the screen work in Recovery, but not in the system?
Display drivers in Android may be damaged or conflict with the system after the update. Recovery mode uses basic drivers loaded directly from the bootloader, which allows you to bypass software errors of the main system.
Shutdown via connection to a computer (ADB)
For advanced users who have drivers Android and platform tools installed on their computer ADB (Android Debug Bridge), the most reliable software method opens management. This method allows you to send commands directly to the operating system, even if you do not see the image, provided that USB debugging was previously enabled in the developer settings.
Connect your smartphone to your computer using a working USB cable. Open a command prompt (Terminal on Mac/Linux or CMD/PowerShell on Windows) in the folder where ADB is installed. Enter the ping command: adb devices. If a device with status deviceappears in the list, then the connection is established and you can send power management commands.
adb shell reboot -pThis command reboot -p is universal for turning off the device. It correctly terminates all processes, unmounts the file system and turns off the power. If this command does not work (for example, on older versions of Android), you can use an alternative input through emulating the power button:
adb shell input keyevent 26This command emulates briefly pressing the power button, which usually brings up the shutdown menu on the screen. Since you can't see the screen, this method is only useful if you plan to use a mouse (see next section) or if the phone is set to automatically turn off when a certain event occurs. However, the command reboot -p remains the most effective solution for completely de-energizing.
ADB commands only work if “USB Debugging” was previously enabled on the phone and you have confirmed your trust in this computer. If the phone is new or has been recently reset, this method will not work without access to the screen.
It is important to note that some manufacturers block ADB capabilities for security reasons. For example, on devices Huawei with the latest EMUI updates, access to certain commands may be limited. In such cases, you can try the command adb shell svc power stayon false, which disables the “stay awake” mode when charging, but to turn it off completely, it is better to use the standard flag -p.
Control using a USB mouse and OTG adapter
One of the most elegant ways to solve the problem, which is often overlooked, is using a computer mouse. If the touch layer (touchscreen) is broken, but the matrix at least partially shows signs of life (there is a backlight, distortions are visible), or if you suspect that the problem is in the sensor, this method will allow you to visually control the system.
You will need an adapter OTG (On-The-Go). This is a small adapter that is inserted into the charging connector of your smartphone (USB-C or Micro-USB) and has a full-size USB port for connecting peripherals. By connecting a regular wired mouse to the phone through such an adapter, you will see a cursor on the screen.
Using the cursor, you can unlock the phone (by entering a pattern or PIN code with mouse clicks) and go to the shutdown menu. This method is also indispensable if you urgently need to save data before shutting down. You can copy photos and documents to your computer or to the cloud using a mouse-controlled file manager.
☑️ What you need for the mouse method
It is worth remembering that not all smartphones support the OTG function, although in 2026-2026 this is the standard for most mid- and high-end devices. Entry-level budget models may not supply power to the USB port and the mouse will not work. In this case, the mouse indicator will not light up and the cursor will not appear.
⚠️ Attention: Connecting a mouse via OTG consumes the smartphone's battery power. Do not leave the adapter connected for a long time if the phone is not connected to the charger. Use a USB hub with additional power if you need to perform long-term operations with data.
Radical method: Completely discharging the battery
If none of the above methods worked, USB debugging is disabled, there is no OTG adapter at hand, and the buttons do not respond properly, the last, passive method remains - wait until the battery is completely discharged. This is guaranteed to turn off the device, although it will take some time.
To speed up the process, you can try to increase the load on the processor and communication modules. If the phone reacts at least somehow, try turning on maximum brightness (if the screen shows anything at all), activating the Wi-Fi hotspot, running a heavy application or game in the background. It is also worth disabling the power saving mode if it is active.
However, there is an important nuance. Modern smartphones at a critical charge level (usually 1-2%) go into deep sleep mode and may not turn off completely, but only pause work, continuing to slowly consume energy. To ensure a complete shutdown, after the screen goes dark and the phone stops responding, leave it in this state for a few more hours.
Is deep discharging harmful to a lithium-ion battery?
For a modern power controller, going to zero once is not critical. However, regular full discharge reduces battery life. Use this method only in emergency situations when other options are not available.
Once the device is completely de-energized, it will turn off. The next time you connect it to a charger, it may take some time (10 to 30 minutes) before it will turn on. This is normal behavior for batteries that have become deeply discharged.
Diagnostics and frequently asked questions
The black screen problem does not always mean the death of the display. Sometimes this is the result of a software glitch, a failed update, or an application conflict. Before taking your phone to a service center, you should analyze the symptoms. If during a call the phone vibrates and there is sound, this is a good sign, meaning that the “brains” of the device are alive.
Often users confuse a breakdown of the display module with a failure of the backlight controller. In a dark room, you can shine a flashlight close to the screen. If you see a dim image of the interface, it means that the matrix is intact, and the problem is in the backlights or inverter. In this case, turning off the phone using standard methods (if the touchscreen is working) or using buttons will help to temporarily solve the problem until repair.
If the image is completely absent even under a flashlight, and the phone is heating up in the processor area, the chip may have fallen off or a short circuit has occurred. In such cases, turning off the buttons may not help, and the device will continue to consume current and heat up. The only thing that will help here is to disconnect the battery, which requires disassembling the case.
Is it possible to turn off the phone if only the touchscreen is broken, but there is a picture?
Yes, this is the simplest scenario. If there is an image on the screen, you can use the USB mouse method via an OTG adapter. Having connected the mouse, you will see a cursor and can click on the “Turn off” button in the menu caused by a long press of the power button, or follow the path Settings → About phone → Shutdown.
What to do if the phone does not turn off with the buttons and continues to heat up?
If the device overheats and does not respond to buttons, this may indicate a short circuit within the power circuit. In this case, software methods (ADB) are unlikely to help. It is necessary to discharge the battery as quickly as possible (by leaving the phone with the screen on, if it works, or simply disconnecting it from charging) and take the device to a service center to open and physically disconnect the battery.
Will removing the SIM card help turn off the phone?
No, removing the SIM card or memory card does not affect the power circuit of the main device. The phone will continue to work as normal, perhaps only displaying a notification that there is no network. This myth has no technical basis.
Will data be lost when forced to shut down using buttons?
If the system is working correctly, a forced reboot (Hard Reset) using buttons is safe for data. It emulates removing the battery, which is a standard procedure for Android. Data loss is only possible when files are written to memory. If the phone is simply frozen, this method is the recommended solution.
How to turn off the phone if the power button is physically broken?
If the power button does not press or does not click, use the ADB command adb shell reboot -p (if debugging is available). If there is no debugging, the only option is to set the battery to zero. In some models (for example, old Samsung), you can bring up the shutdown menu by double-clicking the Home button, if there is one, or through accessibility settings by assigning another button to the shutdown action, but this requires access to the screen.