How to turn on Xiaomi Redmi 9T: from basic launch to recovery after a crash

Xiaomi Redmi 9T is one of the most popular budget smartphones of the brand, but even it sometimes refuses to turn on. The reasons can vary from a dead battery to software failures. In this article, we will discuss all possible ways to turn on the device, including forced reboot, charging in a switched-off state and recovery via Fastboot. If your Redmi 9T does not respond to the power button or hovers on the logo, here you will find a solution.

This material will be suitable for both beginners and experienced users, and we will not limit ourselves to basic tips like “press the power button”, but will consider alternative methods, including working with cable, battery and service modes. All instructions are tested on current versions of MIUI and adapted to the features of the Redmi 9T model (codenamed lime).

1. Standard on: power button and nuances

So let's start with the obvious thing, which is that the device is mechanically turned on, and 90 percent of the time, it's solved this way, but there are important things that many people miss.

To enable Xiaomi Redmi 9T in the standard way:

1. Make sure that the smartphone is charged at least 5% (the charging indicator should flash when connecting the cable).
2. Press and hold the Power button (located on the right end) for 8-10 seconds until the Redmi logo appears.
3. If the screen doesn’t respond, try plugging the charger in and try again.

⚠️ Warning: If the smartphone vibrates after pressing the power button, but the screen remains black, this may indicate a malfunction of the display plume or graphics chip, in which case standard switching on will not help, and you will need a diagnosis in the service center.

Also check:

• 🔌 Cable and Power Unit: Use the original Xiaomi cable (or certified USB-C) and power supply with output 5V/2A or higher. Cheap cables may not provide enough current to run.
• 🔋 Battery status: If the smartphone was long-term discharged (more than 2 weeks), the battery could go into deep discharge mode.
• 🌡️ Device temperature: If the Redmi 9T is overheated or cold, wait 10-15 minutes until it returns to room temperature.

2. Forced reset (Hard Reset)

If the smartphone is getting stuck on the MIUI logo, does not respond to touch, or cyclically reboots, forced reboot will help.This method resets the current state of the OS, but does not delete user data.

Instructions for Redmi 9T:

1. Turn off the charger (if connected).
2. Press and hold the Power + Volume button at the same time.
3. Hold them for 15-20 seconds until the screen goes out and the smartphone vibrates.
4. Release the buttons and wait 30 seconds – the device should turn on automatically.

⚠️ Warning: Don't confuse forced reboot with factory reset (Wipe Data). In this method, data is not erased! If the smartphone freezes again after the reboot, the problem may be in the firmware or hardware.

If the combination Power + Volume up does not work, try the alternative:

• 🔄 Press Power + Volume down for 10 seconds (this can trigger Fastboot mode).
• 📱 If a screen with a robot image and the inscription No command appears, release the buttons and wait - in 5 seconds the smartphone will restart.

Disconnect the charger

Check that the buttons are not stuck

Make sure the screen is not damaged

Wait 1 minute after the reboot-->

3. Energizing through the charger: what to do if the battery is discharged

One of the most common reasons the Redmi 9T doesn't turn on is because it's completely dead, and even if you plug in a charger, it may not show signs of life for 10 to 30 minutes.

Steps to "swing" the battery:

1. Connect your smartphone to the original charger (or a quality analogue with Quick Charge 3.0 support).
2. Leave it to charge for at least 1 hour, even if the indicator is not on.
3. After an hour, try pressing the power button for 5 seconds. If the screen doesn't respond, wait another 30 minutes.
4. If after 2 hours of charging the smartphone is not turned on, try an alternative cable or power supply.

⚠️ Warning: If after a long charge the smartphone turns on, but immediately turns off, this is a sign of a malfunction of the battery. In this case, a battery replacement is required (the cost for Redmi 9T is from 800 to 1500 rubles in service centers).

Additional advice:

• 🔌 Use a wired charger rather than wireless charging — the latter may not provide enough current to start a discharged smartphone.
• 🔋 If the charging indicator flashes red and the smartphone doesn't turn on, it's a critical discharge signal. Wait 2 to 3 hours before you try to turn on.
• 🔄 Try connecting your smartphone to your computer via USB — sometimes this helps to wake up the power controller.

4. Enable via Fastboot mode (for power users)

If the smartphone responds to buttons but does not load beyond the MIUI logo, you can try to turn it on via Fastboot mode.This method requires a connection to the computer and installed Xiaomi drivers.

Step-by-step:

1. Turn off the smartphone (if it freezes – perform a forced reboot, as described above).
2. Press the Power + Volume button down simultaneously for 5-7 seconds until a screen with a picture of a hare and the inscription Fastboot appears.
3. Connect your smartphone to your computer through USB-cable.
4. On your computer, open the command line (Win + R → enter cmd) and execute the command: fastboot devices If the device is determined (the serial number will appear), type: fastboot reboot

⚠️ Warning: If the fastboot reboot command doesn't work, don't try to flash your smartphone without experience! Incorrect actions in the Fastboot can lead to complete data loss or "bricking" of the device.

What to do if your computer does not see your smartphone in Fastboot:

• 🖥️ Install Xiaomi drivers (you can download from the official website in the Mi Unlock Tool section).
• 🔌 Try another one. USB-port (preferably) USB 2.0 on the back of the PC).
• 🔄 Restart your computer and try again.

5. Problems with the power button: how to turn on the smartphone without it

If the power button on the Redmi 9T breaks or sticks, you can turn on the smartphone in alternative ways.

Method 1: Using a Quick Charge-enabled charger

Some Xiaomi power supplies (such as the MDY-12-ED) can automatically turn on the smartphone when connected.

1. Connect your smartphone to charging with Quick Charge 3.0/4.0 support.
2. Wait 5-10 minutes – the device should turn on itself.

Method 2: Connecting to a computer

If the smartphone is recognized by the computer in MTP mode (like a flash drive), but does not turn on:

1. Connect Redmi 9T to your PC via USB.
2. Open Device Manager and find your smartphone in the Portable Devices section.
3. Right-click and select Enter (if there is such a item).

Method 3: Disassembly and closure of contacts (extreme case)

If the power button doesn't physically work, you can temporarily turn on your smartphone by closing the contacts on the board. This method requires disassembling the device and is only suitable for advanced users!

• ⚠️ Remove the back cover (need a mediator or plastic shoulder blade).
• ⚠️ Unplug the battery, then search the board for the contacts of the power button (usually signed PWR_KEY).
• ⚠️ Close the contacts carefully with tweezers or a screwdriver for 1-2 seconds.

⚠️ Warning: Disassembling your smartphone is warranty-free and can damage the board. If you're unsure of your skills, contact the service center.

💡

If the power button is stuck, try to clean it with alcohol or compressed air, often because of dust or moisture under the key.

6. Recovery via Recovery Mode (if the smartphone boots to the logo and turns off)

If Redmi 9T is turned on but cyclically restarts or shuts down during the boot phase, the problem may be a damaged firmware, in which case recovery via Recovery Mode will help.

How to log in to Recovery Mode:

1. Turn off your smartphone (forced if necessary).
2. Press the Power + Volume button up and hold until a menu with a robot image and the word No command appears.
3. If the menu is in English, select Wipe data → Wipe cache → Reboot.
4. If the menu is in Chinese, focus on the icons: select the item with the image of the vacuum cleaner (cleaning the cache), then the arrow (reboot).

⚠️ Warning: The Wipe data item deletes all data from your smartphone! Use it only if other methods have failed and you have a backup.

What to do if Recovery Mode doesn’t help:

• 🔄 Try to reflash your smartphone via Fastboot (the instructions are on the 4PDA forum in the Redmi theme 9T).
• 📱 If the smartphone does not turn on after reset, the problem may be in the damaged memory chip (diagnosis is required).

💡

Cleaning the cache (Wipe cache) in Recovery Mode is the safest way to restore the smartphone without losing data.

7. Diagnostics of hardware malfunctions

If none of these methods worked, the problem is likely hardware, and here are the most common Redmi 9T malfunctions and their signs:

⚠️ Warning: If your smartphone is heated above 50°C when it's off, it's a sign of a short circuit. Don't try to turn it on yourself! Take it to a service center to avoid fire.

Where to repair Redmi 9T:

• 🏢 Official Xiaomi service centers (warranty repair, original parts).
• 🔧 Unofficial workshops (cheaper, but risk of substandard parts)
• 🛒 Self-repair (only if you have experience with electronics)

Average prices for Redmi 9T repairs (2026):

• Battery replacement: 800–1500 ₽
• Screen Replacement: 3000–5000 ₽
• Board repair (power controller replacement): 2000–4000 ₽
• Flashing: 500–1500 ₽

FAQ: Frequent questions about incorporating Xiaomi Redmi 9T