You pressed the power button, but the Xiaomi screen is still black? Or does the device vibrate, the logo light up, but it doesn't load any further? This is a situation that many owners of smartphones, smartwatches, or even brand TVs know. The reasons why the technology doesn't turn on, dozens of reasons - from trivial discharge to serious hardware breakdowns. In this article, we will analyze all possible scenarios, from those that you can fix yourself to cases where you can not do without a service center.
It's important to understand that the symptoms of "not starting" can manifest in different ways: someone sees an endless load with the Mi logo, others have a screen that is completely black, and others have a Xiaomi device vibrating and turning off after a few seconds. Each of these cases requires a different approach. We structured the material so that you can quickly find a solution to your situation without unnecessary theory and water.
If your gadget is still warranty, some methods (such as disassembly or firmware) can cancel it, in such cases, it is better to contact an authorized service center immediately, for the rest of us, go ahead to diagnosis and repair!
1.Discharged battery or charging problems
The most obvious reason why Xiaomi doesn't turn on is because the battery is completely dead. Even if you're sure you charged your smartphone the day before, it's worth checking:
- π Use the original cable and power supply. Cheap accessories may not provide enough current to charge.
- β‘ Connect to another power source. Try charging from a computer, power bank or other power outlet.
- β³ Wait 15 to 30 minutes. If the battery is completely discharged, the first few minutes of the charge indicator may not light up.
- π Try another connector. On some models (e.g. Xiaomi). 11T Pro) USB-The port may be contaminated or damaged.
If the device does not respond after these manipulations, the problem may be deeper:
- π Battery bloating β if the smartphone case is deformed, the battery could fail.
- π Faulty charging controller β in this case, the device will not charge even with a serviceable cable.
- π₯ Short circuit β if the smartphone fell into the water or was subjected to mechanical damage.
β οΈ Warning: If the battery is swelling, do not try to charge the device - this can lead to fire.
To check the battery status on some models (for example, Redmi Note 10 Pro) you can use a hidden engineering menu.
##4636##Select Battery Information and check Charge Level and Status. If the level is 0% and the smartphone is not charging, the problem is exactly in the battery or power chain.
2. Software failures: freeze, reboot cycles, "brick"
If Xiaomi vibrates and turns off, boots only to the logo, or constantly reboots, the software is to blame.
- π± Failed update MIUI (Especially with older models like Redmi. 4X).
- π Installations of custom firmware (for example, through TWRP).
- π οΈ Resetting settings through recovery if the process has been interrupted.
- π¦ Viral Infection (rarely, but possible when installing pirated applications).
Hard Reset helps in most cases, but before you do that, try some more gentle methods:
Try to press the power button for 20-30 seconds (forced reboot)
Connect to charging and wait 10 minutes, then Attempt again
Click the combination to enter Recovery Mode (usually Power) + Loudness up)
If the menu is loaded, choose Wipe. data/factory reset
If not, try flashing through Fastboot.-->
If the smartphone is stuck on the Mi logo and does not respond to buttons, try to enter Fastboot mode:
- Squeeze the power. + Loudness down until the image of a rabbit with a hat appears (Fastboot Mode).
β οΈ Note: Fastboot removes all data from the device. If your smartphone had important files, try extracting them first. ADB (if the device is determined by a computer).
For models with unlocked loader (for example, POCO F3) You can try to install custom recovery (TWRP) And through it, run a clean version. MIUI. Instructions for a specific model, look for forums XDA Developers or 4PDA.
MIUI updates
Installation of the annex
Falls/blows
By itself (without apparent reason)
The other.-->
Hardware breakdowns: from display to motherboard
If Xiaomi doesnβt show signs of life (it doesnβt vibrate, it doesnβt warm up, the charging indicator doesnβt light up), the problem is probably hardware.
| Symptoms. | Possible cause | Decision |
|---|---|---|
| Black screen, but the smartphone vibrates when you press the buttons | Faulty display or plume | Screen replacement (from 1,500) β½) |
| The device is heated, but not turned on | Short circuit on the motherboard | Diagnostics in the service (repair from 3 000) β½) |
| Charging indicator flashes red | Problems with battery or power controller | Battery replacement (from 800) β½) |
| The smartphone is turned on, but the screen does not respond to touch | Faulty touchscreen or its detachment | Touchscreen gluing (from 1,000) β½) |
| The device is only turned on when connected to charging | Battery wear or contact oxidation | Cleaning contacts or replacing the ACB |
One of the most frustrating things is a motherboard failure, and it can happen after:
- π Liquid intrusion (even if the smartphone is βwaterproofβ by standard) IP53, Like the Redmi Note 12).
- β‘ Power surge when charging (especially dangerous for budget models like Redmi) 9A).
- π₯ Overheating (for example, after a long game marathon on Black Shark).
Critical symptom: if the smartphone smells like a burn or if the board shows blackened elements, self-repair is impossible, such cases require professional soldering in a service with equipment for microelectronics.
Multimeter (power chain vertebrae) can be used to diagnose hardware problems, or USB-tester (checking the current consumed) For example, if the current is 0 mA when connected to the charge, this indicates a break in the power supply chain.
4. Problems after updating or firmware
Updates MIUI Sometimes it leads to a "bricking" of the device, where the smartphone stops loading, but it's hardware-friendly:
- π² On older models (Redmi 5 Plus, Mi) A1), Not supported by new versions of Android.
- π When the update is interrupted (for example, if the Wi-Fi is turned off or the battery is dead).
- π οΈ When installing firmware from another model (invalid image error in Fastboot).
If the smartphone is stuck on the update screen (progress bar does not move for more than an hour), try:
- Forced reset (clamb the power button on 15)+ seconds).
- Log in to Recovery Mode and select Wipe Cache Partition.
- If it doesnβt work, do Factory Reset (delete all data!).
For models with unlocked loader (POCO X3 Pro, Mi 11 Lite, you can try to roll back to the previous version MIUI It's on Fastboot:
- Download the desired version of the firmware from the site MIUI Downloads.
- Unpack the archive and launch it. flash_all.bat (Windows).
- Connect your smartphone in Fastboot mode and wait for the process to end.
β οΈ Note: Fastboot firmware on locked bootloader models (Redmi Note 11 and later) requires pre-unlocking via Mi Unlock Tool!
If the smartphone is turned on after firmware, but the sensor or camera is not working, most likely, the firmware from another modification (for example, for the global version instead of the Chinese one) was installed, in which case you need to flash the correct version or roll back.
What to do if the Mi Flash Tool gives you a "Couldn't find device" error
5.Moisture and corrosion: what to do if Xiaomi "sinks"
Even if your Xiaomi has protection by standard IP53 (Like the Redmi Note 12, it doesn't guarantee absolute water protection:
- π§ Short circuit on the board (the smartphone ceases to turn on immediately).
- β‘ Corrosion of contacts (problems appear after a few days or weeks).
- π Battery bloating (due to chemical reaction with electrolyte).
If the device falls into the water and does not turn on, act on the algorithm:
Turn off the device immediately (donβt press the buttons!)
Extract. SIM-memory-card
Wet the body with a dry wipe (don't rub!)
Place in a silica gel (or rice) container for 24 to 48 hours
Do not turn on or charge until completely dry!-->
What can't be done:
- π₯ Drying with a hair dryer β this can melt the internal components.
- π Connect to charging - the risk of short circuit.
- π οΈ Disassemble yourself - without experience you can damage the plumes.
If after drying the smartphone still does not turn on, check:
- Moisture indicator (on most Xiaomi models it is located under the tray) SIM-If it is red, it is stained with water).
- Battery contacts β if there is a white coating, they need to be cleaned with alcohol.
- Charging capability β connect to another device to rule out a cable problem.
In the service center for repairs after moisture is usually:
- π οΈ Cleaning the fee in an ultrasonic bath.
- π§ Re-solder damaged elements (resistors, capacitors).
- π Change the battery (if it is swelling).
The cost of such repairs starts from 2,500 β½, But it can go up to 10,000. β½ with serious damage to the motherboard.
Mechanical damage: falls, impacts, pressure
Xiaomi smartphones, especially budget series (Redmi 9, POCO M3), They have a plastic case that doesn't protect the internal components from impact:
- π± Cracked motherboard (microcracks on the tracks).
- π Disconnected plume of the display or battery.
- π₯ Destruction of quartz resonator (smartphone does not show signs of life).
If the device falls and does not turn on, inspect it for:
- π External damage: cracks on the body, dents, broken-off elements.
- π± Screen deformations: if the glass cracked, but the image is β the problem in the touchscreen.
- π Battery bloating: if the case is βinflatedβ, the battery needs to be replaced urgently.
To diagnose mechanical damage in the service use:
- π Microscope β to look for microcracks on the board.
- π Post-test β check the power on key elements.
- π§ Spine - search for cliffs in chains.
The most common βvictimsβ of falls:
- Xiaomi Mi 9 is a fragile camera and glass case.
- Redmi Note 8 Pro β weak attachments of the motherboard.
- POCO F1 β Problems with charging connector after impacts.
β οΈ Warning: If the smartphone turns on after falling but shuts off quickly, it may indicate damage PMIC-The controller (responsible for power) is not possible to repair yourself in this case - it requires soldering on professional equipment.
Cost of repair after mechanical damage:
- Display replacement: 2,000β8,000 β½ (model-wise).
- Motherboard repairs: 3,000β15,000 β½.
- Replacement of the hull: 1,500β5,000 β½.
7. Problems with the power button or other controls
If Xiaomi does not respond to the power button, but it charges (the indicator burns), the problem may be:
- π A stuck or broken power button.
- π Oxidized button contacts (if moisture hits).
- π± Faulty button plume (frequent problem with Redmi 7 and Mi) A2).
Check the functionality of the button:
- Connect the charger β if the smartphone starts to boot, the button is definitely faulty.
- Try pressing the button with force or at different angles β sometimes the contact is restored.
- Light a flashlight on the button - if you see a backlash or it is "drowned", the mechanism broke.
Temporary solution (if the button does not work):
- π Connect charging - some models (POCO X3) activated when connected to the network.
- π± Use it. ADB-commands to enable via PC: adb shell input keyevent 26 (this is a simulation of pressing the power button).
To replace the power button in the service will require:
- π οΈ Disassembly of the device (on some models, such as the Mi 11, this requires removing the back cover with glue).
- π§ Replacement of the plume or the button itself (part cost: 200-800) β½).
- π Checking the performance after assembly.
If the power button is working but the smartphone is not responding to the pressing, the problem may be the button controller on the motherboard, in which case diagnosis is required using a multimeter or an oscilloscope.
8.When to contact the service center?
Not all problems can be solved by yourself.
- π₯ Smartphone smells like a burn or on the board you can see blackened elements.
- π§ The moisture got in, and after drying the device does not turn on.
- π± The screen flashes or shows artifacts (GPU issues).
- π The device is not defined by the computer even in Fastboot mode.
- π οΈ You are not sure about your cleaning/stealing skills.
How to choose a reliable service center for Xiaomi:
- π Official partners: check the list on the website Xiaomi Russia.
- β Reviews: check the ratings on Yandex.Maps or 2GIS.
- π° Price List: Compare the prices for repairing your model in several services.
- βοΈ Guarantees: Good service gives a guarantee for work from 3 months.
Average prices for repairs in Moscow and the regions (2026):
| Type of repair | Cost (β½) | Date(s) |
|---|---|---|
| Replacement of the display (Redmi Note 10) | 3 500β5 000 | 1β2 |
| Maintenance of the motherboard (short circuit) | 4 000β12 000 | 3β7 |
| Battery replacement (POCO X3) | 1 200β2 500 | 1 |
| Recovery after moisture is ingested | 2 500β8 000 | 2β5 |
| Firmware through EDL (if Fastboot is blocked) | 1 500β3 000 | 1β2 |
Before the service visit:
- π Backup data (if the device reacts in any way).
- π± Cancel all accounts (Google, Mi Account) if the smartphone is turned on.
- π³ Check the cost of diagnosis (in some services it is free).
β οΈ Note: If your Xiaomi warranty, do not disassemble it yourself - this will void warranty obligations.
π‘
If the smartphone does not turn on after self-repair attempts, the service may be denied warranty service.