Xiaomi Redmi smartphone stopped turning on β the screen is black, the power button is not responding, and the connection to charging does not work? This problem is familiar to many owners of budget and flagship models of the series, from Redmi Note 10 to Redmi 12. The reasons can be both software (firmware failure, viruses) and hardware (dry battery, damaged board).
In 70 percent of cases, the phone can be reanimated without going to the service center, and the key is to diagnose the problem correctly and not make it worse by doing the wrong thing, such as not repeatedly pressing the power button if the smartphone is discharged to zero, which can damage the power controller.
In this article, you will find step-by-step instructions for all scenarios, from trivial discharge to a brick after a failed update, as well as a table of typical errors and their solutions, relevant for Redmi based on MIUI 12-14 and Android 10-14.
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1.A charging check: why the phone doesn't show signs of life
The first thing you need to do is eliminate power problems. Even if you're sure the battery was charged, check the cable, adapter and USB-C port on your phone. In 30 percent of cases, a dead Redmi simply doesn't get power from:
- π Damaged cable - rubbed insulation, broken contacts inside the connector.
- π Faulty adapter β cheap βnonaimeβ charges may not give the desired voltage.
- π± The polluted port USB-C β dust, moisture or oxidation of contacts.
- β‘ Power controller failure β the phone does not recognize the connection to the network.
How to check:
- Connect Redmi to another cable and adapter (preferably the original one from Xiaomi with Quick Charge 3.0/4.0 support).
- Try charging your phone from a computer or power bank β sometimes it works when the socket doesnβt see the device.
- Check the USB-C port on your phone with a flashlight: If there is debris inside, carefully remove it with a toothpick (not metal objects!).
- Leave your phone charging for 30 to 60 minutes, even if the indicator is not on. Sometimes the discharged battery starts to take charge only after a while.
Important: If you plug in a phone that's a little hot but doesn't turn on, that's a good sign, so power is coming in, and it's probably a software failure.
β οΈ Do not use βfast chargingβ from other brands (such as Samsung or OnePlus) β they can give out incompatible voltage and damage the Xiaomi power controller.
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2.Forced reboot: how to 'wake up' a getting stuck Redmi
If the phone doesn't respond to the power button, but you're sure the battery isn't dead, try a hard reset.
- π± Smartphone βhangβ on the black screen after the update.
- π The screen is flashing, but the system is not loading.
- π The phone overheated and shut down.
Instructions for all Redmi models (including Note 11 Pro, Redmi 10, Redmi K50):
βοΈ Forced reboot of Xiaomi Redmi
If after the reboot the phone turned on, but it works unstable (spontaneously restarts, brakes), the reason may be:
- π Firmware failure - reinstallation is required MIUI.
- π¦ Virus software β check your phone with antivirus (e.g. Malwarebytes).
- π Overflowing Memory β Clear the cache and delete unnecessary files.
Critical error: If the phone is loaded into Fastboot mode after a forced reboot, it means damage to the system partition, in which case you will need to flash through the Mi Flash Tool.
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3. Battery Diagnosis: Is it discharged or dead?
One of the most common causes of a dead Redmi is a deep battery drain, and if the phone was uncharged for more than a month, the battery could go into a deep discharge state when standard charging didn't work.
- π When connected to the network, the indicator does not light up.
- π The phone is switched on only from charging, but immediately switches off.
- β‘ The swelling is then turned off (and then turned off).
How to reanimate the battery:
- Use the original adapter (at least 18 watts) and leave the phone charging for 2-3 hours, sometimes the process does not begin until 30-40 minutes.
- Try a push from another device: connect Redmi to a charged power bank or other phone via a power bank. OTG-cable (if supported).
- Heat the phone (only if itβs cold!) Put it on a warm battery or in a warm place (not above 40Β°C) β this can wake up the battery controller.
- Check the battery voltage with a multimeter (if you have skills). Normal value is 3.7-4.2 V. If below 3.0 V, the battery is likely dead.
If nothing worked, the battery might have failed.
- π§ Contact the service for battery replacement (cost for Redmi - from 1500 to 3000 rubles).
- π Buy the original battery (the article can be found on the old battery sticker).
β οΈ Attention! Don't try to disassemble the Redmi yourself if you don't have experience - you can damage the plumes or tear off the battery contacts. 10/11 The battery is glued and its extraction requires heating.
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Fastboot and Recovery mode: what to do if the phone loads into service menus
If after the manipulation of the buttons the phone turns on, but instead of MIUI you see:
- π€ Green Android Robot with No Command is Recovery Mode.
- π± The Mi Bunny logo with the words Fastboot is a firmware mode.
That means the system partition is damaged, but the phone can still be saved.
Instructions for Recovery Mode:
- Use volume buttons for navigation and power button for selection.
- Select Wipe Data β Wipe All Data (this will reset your phone to factory settings!).
- After reset, select Reboot β Reboot to System.
Instructions for Fastboot Mode:
- Connect your phone to a PC with Xiaomi drivers installed (you can download it on the official website).
- Download the firmware for your model (e.g. Redmi Note 11 Global) in.tgz format.
- Use the Mi Flash Tool for flashing (instruction below).
Table of errors in Fastboot and their values:
| Error code | Reason. | Decision |
|---|---|---|
| remote: partition table doesn't exist | The section table is damaged. | Check out Mi Flash with Clean All checkmark |
| remote: device is locked | The bootloader is blocked (bootloader) | Unlock with Mi Unlock Tool (Mi Account required) |
| remote: image verification failed | Wrong firmware | Download the correct version of MIUI for your model |
| remote: flash write failure | Error recording in flash memory | Repeat firmware or check the USB port |
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5. Flashing through Mi Flash Tool: a step-by-step guide
If the smartphone doesn't turn on or only loads into Fastboot, flashing it back is the only way to bring it back to life.
- π» Windows computer 10/11.
- π Original. USB-cable (preferably from the set).
- π₯ Firmware for your model (download from the official Xiaomi website).
- π Mi Flash Tool (last version).
Step-by-step:
- Unpack the downloaded firmware (.tgz file) in a folder without Cyrillic characters.
- Install Xiaomi drivers (if Windows doesnβt find them automatically, download Mi Phone Manager).
- Run the Mi Flash Tool on behalf of the administrator.
- Connect the phone off in Fastboot mode (press Power + Volume Down for 10 seconds).
- In the program, click Select and specify the path to the unpacked firmware.
- Select firmware method: Clean All β complete cleaning (recommended for serious failures); Clean All and Lock β cleaning + locking the bootloader; Save User Data β data storage (not always working).
Flash
Important: If the phone doesnβt turn on again after the firmware is done, check if the MIUI version is right for your model, for example, the firmware for the Redmi Note 10 Pro (codename sweet) wonβt work for the Redmi Note 10 (mojito).
What if Mi Flash canβt see your phone?
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6. Hardware malfunctions: when to carry in the service
If all software methods have been tried, but Redmi still doesn't turn on, the problem is probably hardware.
| Symptoms. | Probable cause | Cost of repair (β½) |
|---|---|---|
| The phone is heated but not turned on | Short circuit on the motherboard | 3000β8000 |
| Charging indicator flashes, but the screen is black | Failure of screen or plume illumination | 2000β5000 |
| The phone is only turned on from charging | Wear of battery or power controller | 1500β4000 |
| No response to charging and buttons | Damage to the South Bridge (power chip) | 5000β12000 |
What to do:
- π§ Contact the authorized service Xiaomi β they give a warranty for repair and use original spare parts.
- π Find a proven master (by reviews on Yandex.Maps or 2GIS).
β οΈ Do not accept repairs if the master offers: π Install a battery of an unknown manufacturer (may swell or not hold charge). π§ Soldering fee without diagnosis (risk of damaging other components). π» Switching the phone with an unofficial firmware (can block) IMEI).
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7 Prevention: How to avoid problems in the future
To prevent Xiaomi Redmi from βdiingβ again, follow the following simple rules:
βοΈ Failure prevention Xiaomi Redmi
Also useful:
- π± Enable Safe Mode if viruses are suspected (Settings) β Annexes β Safe regime).
- π Backup important data in Mi Cloud or on PC.
- π Calibrate the battery every 3 months (discharge to 0% and charge to 100% without interruptions).
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