When your Xiaomi Redmi 6A suddenly stops responding to button presses and the screen stays black, it can take you by surprise.This device, released in 2018, is still in active use due to its reliability, but time takes its toll. Most often the problem is not a fatal motherboard failure, but a software failure or a deep battery discharge.
Before you bring your gadget to the service center, you should conduct a self-diagnosis, which in 80% of cases helps to bring the device back to life, it is important not to panic and consistently exclude possible causes, ranging from the simplest, such as a faulty charging cable, to more complex software errors of the MIUI system.
In this article, we will discuss in detail the algorithm of actions that will help you determine the cause of the malfunction, you will learn how to perform a forced reboot, how to enter recovery mode and what to do if the phone went into a bootloop or stuck on the logo.
Primary Diagnosis and Nutrition Testing
The first thing to do if the Redmi 6A is not showing signs of life is to eliminate power problems. Often users mistakenly believe that the phone is broken, when in fact just the charging port has oxidized or the power supply has failed. Connect the device to the network and leave it for at least 30-40 minutes, even if the charging indicator does not light up immediately.
Visually inspect the Micro-USB connector for dust, pile, or oxidation. Carefully, without using a metal needle, try cleaning the port using a dry toothbrush or a wooden toothpick. The garbage inside the connector is a common cause of no contact, which causes the battery to not receive current.
⚠️ Warning: Never use metal objects to clean the charging port, as this can short the contacts inside the smartphone and the motherboard will eventually fail.
If you're charging your phone for a long time, try replacing the cable and power adapter with something that's obviously good, and sometimes the problem is that the current isn't enough to pump a deeply discharged lithium polymer battery.
Forced reboot and discharge of static electricity
The MediaTek-based Android system that runs on the Redmi 6A can sometimes go into deep sleep or freeze due to static electricity or software conflict, and a procedure known as “hard reset” buttons that doesn’t affect user data helps.
To do this, you need to press the power button and hold it for a long time, 15 to 20 seconds, and if the phone reacts with a vibration or the appearance of the Mi logo, then the system just got stuck and successfully restarted, and in some cases, you need a combination of volume and power buttons.
This method is safe for your data, because it simulates the physical extraction of the battery, which was the norm for older phones: If the screen blinks or the device vibrates, release the button and wait for the operating system to fully boot.
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If the phone vibrates but the screen is black, try to point the flashlight brightly at the display. If you see a dim image, it means that the backlight of the screen, not the display itself or the board, has burned.
Diagnostics through the Engineering Menu and Recovery
If you can't boot normally, you need to check the hardware response, and you need to use special boot modes built into the firmware, and first of all, you need to log into the Recovery menu, which allows you to control the system at a low level.
To get into this menu, the phone turned off (or one that is not responding) must be connected to the computer via the phone. USB-Then press the Volume Up and the power button at the same time, hold them until a logo or menu with a few items appears.
In the Recovery menu, you can navigate with volume buttons, and you can choose with the power button. If you get here, that's good news: the processor and the screen work. You can only select Wipe Data if you're ready to lose all your files, or Reboot for a normal reboot.
☑️ Checking the smartphone reaction
Fastboot mode and flashing the device
A deeper level of diagnostics and recovery is Fastboot mode, where the phone doesn't load the operating system, but waits for commands from the computer, and if Redmi 6A is only included in this mode and the logo of the "hare" repairing the android does not go, then the system files are corrupted.
To log in to Fastboot on the device turned off, press the Volume Down button and connect USB-The cable is to the computer, and an android should appear on the screen, and it says, FASTBOOT. The computer at this point should make a sound of connecting the new device.
If the phone is included in the Fastboot but does not load normally, you will need to flash it through the Mi Flash Tool, a more complex procedure that requires downloading the official firmware for a specific model (codename onc for Redmi 6A).
| Regime. | How to get in | What do you need? | PC reaction |
|---|---|---|---|
| Recovery | Volume Up + Nutrition | Reset, update, reset | Disk connection sound |
| Fastboot | Volume Down + Nutrition | Flashing, unlocking | Sound of Android device |
| EDL (9008) | Special cable or disassembly | Rebuilding the brick | Qualcomm HS-USB QDLoader |
What is an EDL mode?
Problems with the display and touch screen
Sometimes the phone is running, ringing, and making notifications, but the screen is black, which indicates that the display module or the plume is malfunctioning. In Redmi 6A, the display is mounted on the frame, and the connection plume may have left when it falls.
You can check the touchscreen and the matrix by calling the phone number. If there's a beep, but you can't see the call interface, it's probably a backlight or a plume problem. Careful pressure on the top of the screen (where the train is connected) can temporarily restore contact, confirming the diagnosis.
Replacing the display module is a moderately complex procedure: you will need to remove the back cover (it is plastic and is difficult to remove), unscrew the frame screws and disable the battery before changing the screen. New screens for the Xiaomi Redmi 6A are available and inexpensive.
⚠️ Warning: When trying to remove the back cover, be extremely careful. The plastic may crack, and in some cases there is glue under the cover that needs to be warmed up with a hair dryer to avoid damaging the internal components.
When repairs are needed in the service
There are situations where software methods and simple screen replacement do not help: If there are no new connections in the Device Manager when connecting to the computer, or the phone warms up in a certain area (usually in the area of the processor or power controller), this is a serious hardware breakdown.
A common problem with older smartphones is that the processor or power controller has fallen off because of overheating or impact, and the battery itself, which is physically unable to hold a charge, even if it is 100%.
Diagnosing a motherboard requires special equipment: a multimeter, a power supply with limited current and possibly a microscope. If you don't have the skills to solder and read electrical circuits, self-repair can lead to the final death of the device.
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If the phone doesn’t respond to the connection to the PC, doesn’t vibrate or warm up when trying to charge for more than 2 hours – most likely, the power controller or the battery itself is dead.