When Xiaomiβs beloved suddenly stops responding to the presses and the screen stays black, users often panic, believing that the expensive device has completely failed and requires complex repairs in the service center. However, in most cases, the problem lies not in the hardware breakdown, but in a software failure or deep battery discharge that can be fixed on your own.
Before you look for the nearest repair shop, you should analyze the previous events: whether the phone fell, whether it got moisture, or maybe it just lay there for a long time without charging. Understanding the reason helps you choose the right algorithm for actions, whether it is a simple forced reboot or more complex manipulation of the firmware. In this article, we will analyze all possible scenarios and methods of resuscitation of your gadget.
It's worth noting that today's Mi and Redmi smartphones have robust overload protection that can block power from turning on in critical system conditions. So not responding to the power button doesn't always mean the motherboard dies. Let's take a sequential look at the steps that will help bring the device back to life.
Primary diagnostics and verification of the charger
The first thing to do if Xiaomi phone doesnβt turn on is to eliminate power supply problems. It often happens that the charge indicator doesnβt light up due to contact oxidation or cable malfunction. Carefully inspect the USB Type-C or Micro-USB connector for dust, pile or moisture that may have hit there before.
Try using a different cable and power adapter, preferably original or manufacturer-certified. Connect the device to the network and leave it alone for at least 30-40 minutes, even if the screen does not light up. In a deep discharge state, the power controller takes time to store enough energy to start the system.
β οΈ Warning: If the device starts to heat up appreciably during charging or the smell of burning appears, immediately disconnect the smartphone from the network.
If the screen is still black after a long charge, try pressing the battery area slightly (if the design allows) or moving the cable in the connector to check the contact. USB-port which can produce a different current.
- π Check the integrity of the cable and no bending.
- π§Ή Carefully clean the charging connector with a toothpick or dry brush.
- β³ Leave your phone on charge for at least 40 minutes without trying to turn on.
- π Try charging the device from another power source (PC, powerbank).
βοΈ Diagnostics of nutrition
Forced reboot as a method of solving software failures
The most common reason Redmi or Poco is turned off and not turned on is the Android operating system or the MIUI shell freezes. At this point, the processor may work, but the interface does not appear. Standard pressing the power button here will not help, you need Hard Reset with a key combination.
To perform a forced reboot on most Xiaomi models, you need to press the on button and hold it for 10-15 seconds. Some models require simultaneous pressing of the power button and the volume reduction keys. Hold the buttons until you feel the vibration or see the brand logo.
Press: On button + Volume Down (10-15 seconds)This method breaks cycles of processes that could have blocked the system. If the device goes out again after vibration, repeat the procedure, but this time, as soon as the logo appears, release the power button and immediately press the volume button to try to enter recovery mode.
- β±οΈ Hold the buttons for a long time, do not let go at the first vibration.
- π± Make sure there is not even a noticeable glow on the screen.
- π Repeat the procedure. 2-3 minute-by-minute.
Enter Recovery Mode and Reset Settings
If a normal reboot doesn't work, you need to go to Recovery mode, which is a special diagnostic interface built into the device's memory that allows you to control the system at a low level. To log into the Recovery menu on a phone that is turned off, press the power button and the volume button at the same time.
Hold the combination until the Mi logo appears, then release the power button, keep the volume up, and you will see a menu with English inscriptions, controlled by volume buttons (up/down) and power button (select).
Select Wipe Data, then Wipe All Data, and confirm the action. This operation will completely delete all user data, photos, and contacts, so only use it if other methods fail. Once you complete the process, select Reboot to reboot.
| Action. | Navigation buttons | Confirmation button |
|---|---|---|
| Moving on the menu | Volume Up/Down | - |
| Selection of a paragraph | - | Nutrition |
| Entrance to Recovery | Food + Volume Up | Hold to the den. |
| Getting out of the regime | Reboot to System | Nutrition |
β οΈ Note: Recovery is not possible if your phone has activated a Google or Mi Account lock and you don't remember the password.The device will request account details after the reboot.
Diagnostics through Fastboot mode
Fastboot is designed for developers to scour the device through a computer, but it also serves as a great diagnostic tool. If the phone responds to entering this mode (an image of a rabbit repairing an android appears, or the word Fastboot), then the display and the main components of the board are working.
To enter, press the power button and the volume down key on the switched-off device. If the screen catches fire and the corresponding image appears, the problem lies in the software or damage to the system files, in which case you may need to completely flash through the Mi Flash Tool utility.
What if your computer doesnβt see your phone in Fastboot?
If the screen remains black even when you try to log in to the Fastboot, this may indicate more serious problems with the power controller or the display plume. However, take your time to conclude, sometimes a long (up to an hour) connection to the computer with the installed firmware helps.
- π° Entry indicator β image of a hare or the inscription Fastboot.
- π» Requires a PC connection for further action.
- π§ Allows you to restore the software part without losing data (in some cases).
Display problems and hardware malfunctions
There are times when the phone is actually on, it vibrates when it's ringing, it makes notifications, but the screen is completely black, and that indicates that the display matrix, the plume, or the image controller, is not working, and you can check that by calling the device number from another phone or connecting it to a computer, so if the PC makes a sound of the device's connection, then the hardware is working.
A common cause of blackout screens is falling, and even if the glass is intact, the inner plume could have moved away from the connector, and in these cases, a slight tap on the back cover sometimes temporarily returns the image, confirming the contact problem, but it's a temporary solution that requires disassembly.
You also have to consider the possibility of the display module itself failing, if you can see the backlight at a bright light angle, but you can't see the image, the plume or the matrix is burned, and replacing the screen in the authorized center will solve this problem.
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To check if the touchscreen on the black screen works, try taking a screenshot with a combination of buttons and sending it via the messenger to another phone. If the screenshot is created (shutter sound is heard), then the system is working.
When a visit to the service center is required
There are a number of symptoms in which acting on your own is not only useless, but also dangerous for the device. If the phone stops turning on after getting water, do not try to charge it or dry it with a hair dryer - this will only drive moisture deeper, in which cases professional cleaning in an ultrasonic bath is required.
Battery bloating is another critical factor: if the back cover has moved away or the screen has started to push out of the case, the battery must be disposed of immediately, the operation of such a device can lead to fire, and the help of specialists is needed for problems with the power controller, when the phone cyclically restarts (bootloop) even after resetting.
You don't have to open the case yourself if you don't have the right skills and tools. Breaking the seals is a guarantee, and careless handling of the plumes can turn a simple repair into a replacement for the entire motherboard.
β οΈ Note: If the phone is under warranty, any self-opening of the case or attempt to flash the unofficial methods will lead to the loss of warranty service.
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If the phone doesnβt respond to charging, buttons, or PC connection for a long time, the power controller or battery is likely to be faulty, requiring replacement of components.