Xiaomi Redmi 8 phone turned off and does not turn on: what to do in 2026

Did you pick up your Xiaomi Redmi 8 and it suddenly stopped responding to the power button? Is the screen black, the charging indicator is not on, and the connection to the computer does not give any reaction? Don't panic - in 80% of cases, the problem can be solved independently without resorting to expensive repairs. This model, released in 2019, is still popular, but its "weak points" - the battery, the charging connector and software failures - often cause such malfunctions.

In this article, we will look at all the possible reasons why the Redmi 8 may not turn on, from trivial battery drains to serious hardware breakdowns, you will receive step-by-step instructions with photos, checklists for diagnostics, and tips on how to avoid repeated failures. If the phone still “shows signs of life” (vibrates, flashes the indicator), the chances of recovery are close to 100%. Even in the case of complete “bricking” after a failed firmware, there are ways to resuscitate.

We warn you right away that some methods (such as flashing through the Fastboot or disassembling the body) require caution. Mistakes here can aggravate the problem. But don't worry, we have noted all the critical points where you should be especially careful.

1.Primary diagnosis: identify the "symptoms" of the malfunction

Before you start repairing, you need to understand what exactly isn’t working in your Redmi 8, which is what determines how you choose to repair it, and below is a table with the main “symptoms” and their possible causes.

If your case does not fall under any of the rows of the table, try to answer the questions:

• 🔋 The phone was down to 0% before it stopped turning on? → Probably a deep battery discharge.
• ⚡ Have you tried charging it with another cable or power supply? → Unoriginal accessories may not give enough current.
• 📱 Was the phone exposed to physical stress (blows, falls, water)? → Possible damage to the board or display.
• 🔄 Have you recently installed updates or custom firmware? → Failure of software is a common cause of “bricking».

⚠️ Warning: If the phone is hotter than 50°C when you connect to the charge, immediately turn it off! This may indicate a short circuit that will cause the battery to catch fire.

2.Battery is discharged: how to "wake up" the phone after a deep discharge

Xiaomi Redmi 8 has a 5,000 mAh battery, but even that can run out of battery life when the phone stops responding to charging, which is called a deep discharge, which means the battery falls asleep, and the power controller blocks charging with standard methods.

To “resuscitate” the battery, follow this instruction:

1. Connect the phone to the original charger (power supply on the device) 18W or 10W). Using cheap cables or powerful blocks (like a laptop) can make the problem worse.
2. Leave your phone on charge for at least 30 to 60 minutes, and even if the light doesn't burn, the current can come in.
3. If there is no reaction after an hour, try an alternative method: 🔌 Connect your phone to charge. 📛 Press the power button. + Increase volume by 20-30 seconds. 🔄 Release the buttons and wait 5-10 minutes. Sometimes it wakes up the power controller.

at least 10-15% charge

If the phone still does not show signs of life, the problem may be in the damaged connector. USB-C In this case, only disassembling the device or contacting the service will help.

Try the original cable and power supply|Leave on charging 1-2 hours|Check the reaction to buttons (vibration, sounds)|Try charging from another device (Power Bank)|Check the connector for damage-->

⚠️ Warning: Don't use the "fridge method" (battery cooling to start) advised on some forums! for Redmi 8, this can cause moisture to condense inside the case and short circuit.

3. Forced reboot and login to Recovery Mode

If the phone doesn't respond to the power button but the battery is charged (or you're sure it's not involved), try a forced reboot. This helps with system freezes or software failures.

For Xiaomi Redmi 8, there are two options:

• 🔄 Soft reset: Press the Power button for 10-15 seconds. If the phone is "live," it will reboot.
• 🛠️ Hard reset (entry to Recovery): Clutch the power + Increase volume by 10-20 seconds until the Mi logo and recovery menu appear.

If you're able to log in to Recovery Mode, you'll see a menu in English or Chinese.

• 🔄 Reboot - a normal reboot.
• 🗑️ Wipe Data – reset to factory settings (deletes all data!).
• 📦 Connect with MiAssistant – Connect to a PC for firmware.

If the phone vibrates when you press the buttons, but the screen remains black, the problem may be a damaged display plume or graphics chip. USB-C → HDMI Adapter (if supported) or to PC in Fastboot mode.

4.Fastboot firmware: When the phone is 'brick-y' after upgrade

One of the most common reasons Redmi 8 stops turning on is a failed software update or custom firmware installation, and if the phone boots up to the Xiaomi logo and shuts down or freezes on the screensaver, Fastboot will help.

You'll need:

• 💻 Windows computer (7/10/11).
• 🔌 Original. USB-cable (better from the set).
• 📦 Firmware for Redmi 8 (official or custom). Download on the official website of Xiaomi.
• 🛠️ Mi Flash Tool (for official firmware) or Fastboot Enhance (for customized software).

Step-by-step:

1. Download and install the Mi Flash Tool (version no lower than 20200314).
2. Unpack the archive with firmware in a folder without Cyrillic characters (for example, C:\ROM\redmi8).
3. Put your phone in Fastboot mode (see spoiler above).
4. Connect your phone to your PC. The Android Bootloader Interface should appear in Device Manager.
5. In the Mi Flash Tool, click Select, specify the firmware folder, then select Clean all (full clean) or Clean all and lock (if you want to lock the bootloader).
6. Press Flash and wait for the process to end (5-10 minutes).

If the firmware is successful, the phone will restart. The first run can take up to 15 minutes - don't interrupt the process.

⚠️ Attention: Fastboot firmware removes all data from your phone!If you had important files, try extracting them through the phone first ADB (If the phone is determined by PC).

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If the Mi Flash Tool gives an error critical partition flashing is not allowed, download the older version of the utility (for example, 20180427) or use Fastboot Enhance with the Unlock Critical option.

5.Iron problems: when the battery, connector or board is to blame

If the software methods didn't help, the problem is most likely hardware.Redmi 8 has a few typical "diseases":

• 🔋 Bloating or failure of the battery - after 3-4 years of operation, the battery loses capacity and may refuse to hold the charge.
• ⚡ Connector damage USB-C — oxidation of contacts or mechanical damage prevents charging.
• 🔌 Power controller failure – the chip on the board responsible for power distribution may fail after a voltage surge.
• 📱 Display plume dump or touchscreen – the phone works, but the screen remains black.

Diagnostics of hardware problems:

If you suspect a battery bloating, check the phone case:

• 🔍 Check if the back cover is not open (especially in the camera area).
• 📏 Try putting your phone on a flat surface with the screen upwards - if it swings, the battery swells.
• ⚠️ Don't use a phone with a bloated battery! it's dangerous - risk of fire or explosion.

For battery replacement or connector USB-C If you're not sure about your skills, you should go to the service. The cost of replacing the battery for the Redmi 8 in 2026 is about 1500-2500. ₽ (depending on the region).

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If the phone falls or gets wet, don't turn it on right away! let it dry for at least 24 hours in a dry place (such as rice or silica gel).

6.Extreme measures: firmware through EDL and contacting the service

If the phone is completely dead (no button response, no PC detection, no warmth), there are two options:

1. 🔧 Firmware through EDL (Emergency Download Mode).
2. 🏥 Repairs at the service centre.

EDL — It's an emergency firmware mode that works even when the phone doesn't turn on. For the Redmi 8, it's activated by closing test points on the board or using a special cable (EDL cable).

⚠️ Attention! This method requires disassembling the phone and risks permanently locking the bootloader if something goes wrong.

If you decide, follow the instructions:

1. Download the firmware for EDL (usually a file with the.mbn extension).
2. Install the Qualcomm HS-USB QDLoader 9008 driver (can be found on the 4PDA or XDA forums).
3. Disassemble the phone and find test points (usually signed) EDL or placed near the charger's connector).
4. Close the points with tweezers or a needle while connecting the phone to the PC.
5. Device Manager should have a device QHUSB_BULK.
6. Use the Mi Flash Tool or QFil for firmware.

If nothing works, it's just the service center, and the average price of a Redmi 8 repair in 2026 is:

• 🔋 Battery replacement: 1500–2500 ₽.
• ⚡ Repair of the charging connector: 1000–2000 ₽.
• 📱 Display replacement (with touchscreen): 3000–5000 ₽.
• 🔧 Diagnosis of the fee: 500-1500 ₽ (Free of charge if you agree to a repair).

Before the service visit:

• 📋 Write it down. IMEI phone (on a box or under a battery).
• 🔒 Make sure you have your Mi Account binding disabled (if your phone has been blocked).
• 💰 Check whether the service provides a guarantee for work (minimum 3 months).

7.How to avoid repeated failures: prevention for Xiaomi Redmi 8

To ensure that your Redmi 8 lasts longer and doesn’t turn off at the most inopportune time, follow these tips:

🔋 Battery care:

• 🔌 Do not let the discharge below 10-15% – deep discharges reduce battery life.
• ⚡ Use an original or certified charger (power) 10W–18W).
• 🔥 Avoid overheating – Do not leave your phone in the sun or near heat sources.
• 📴 Calibrate your battery once every 3 months: completely discharge your phone, then charge to 100% without interruption.

📱 Programme prevention:

• 🔄 Regularly update the software through Settings → The phone. → Updating the system.
• 🗑️ Do not install custom firmware unless you are sure of their compatibility.
• 🛡️ Turn off automatic application installation from unknown sources (Settings) → Annexes → Special rights).
• 📂 Periodically clear the cache through Settings → Warehouse → Clear the cache.

🛠️ Mechanical protection:

• 📱 Use a case and protective glass – Redmi 8 has a plastic case that is easily scratched.
• 💧 Avoid moisture – despite the claimed spray protection, the phone is not waterproof.
• 🔌 Clean the charging connector from dust and debris regularly (you can use a toothpick or compressed air).

If your phone has already experienced several failures, consider buying a new battery or used parts. On AliExpress or Avito, you can find original batteries for the Redmi 8 for a price of 800. ₽.

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To check the battery status, type ##4636## in the dialer, then select Battery Information. Health should show Good.

FAQ: Frequent questions about Xiaomi Redmi 8 malfunctions