How to turn on Xiaomi Mi 9T: instructions for all situations

Why is your Xiaomi Mi 9T not included?

Smartphone Xiaomi Mi 9T (Also known as the Redmi K20 in some regions) – a popular model with a retractable front camera and AMOLED-But even reliable technology sometimes refuses to turn on, and the reasons can be different, from the banal discharge of the battery to software failures after the update. MIUI.

This article will help you understand how to properly turn on the Mi 9T in standard and non-standard situations. We will look at all possible scenarios, from a normal launch to recovery from the brick. It is important to understand that some methods require certain skills, such as working with Fastboot or Recovery Mode.

If your smartphone doesn't respond to the power button, don't panic. 80 percent of the time, it's solved without going to the service center, and the key is to act consistently and not miss the steps.

Standard inclusion of Xiaomi Mi 9T: basic instructions

Let's start with the simplest, the simple way to turn on your smartphone, which works if the battery is charged and the system is not damaged.

1. 🔋 Connect the charger (preferably original) and wait 5-10 Even if the light didn't burn, the battery could have run out of power.
2. 🖱️ Press the power button (located on the right) on 3-5 A few seconds before the Mi logo appears.
3. 🕒 Wait. 10-30 So, in seconds, the system needs to boot. 9T s AMOLED-The loading time usually takes less than on devices with IPS.

If you leave the screen black after this, move to the next section, which may be a software failure or hardware malfunction.

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On the Xiaomi Mi 9T, the power button is sensitive to prolonged pressing. If you hold it for more than 10 seconds, the smartphone will perform a forced reboot, even if the system is getting stuck.

Forced reboot: if the smartphone is frozen

Sometimes the Mi 9T will hang on the logo or black screen after a failed update, which will help hard reset, which does not delete data, but resets the current session of the system.

• 🔄 Hold the power button. 15-20 seconds until the device vibrates and restarts.
• 📴 If it doesn’t work, try the combination. + Volume up for 10 seconds.
• ⚡ After vibration release the buttons – the smartphone should start loading again.

If the forced reboot doesn't work, the problem could be more serious, such as partition /system damage or power controller hardware failure, in which cases you'll need to log in to Recovery Mode or Fastboot.

Enter Recovery Mode: Restore the system

Recovery Mode is a special recovery mode built into the Xiaomi Mi 9T. It allows you to reset settings, clear the cache or install the update manually.

1. 🔌 Turn off your smartphone (if it’s on, hold the power button until it’s off).
2. 🔘 Squeeze the power. + Loud up and hold on 5-7 seconds.
3. 📱 When the Mi logo appears, release the power button, but keep the Volume up until you see the Recovery menu.

In the Recovery menu, the volume buttons (Up/Down for navigation, Power for selection) are used.

• 🗑️ Wipe Data – Full reset to factory settings (deletes all data!).
• 🧹 Wipe Cache – Cache cleanup (safe, data is not deleted).
• 📥 Apply update from ADB — computer-mounting.

Clear the cache (Wipe Cache)

Reboot the system (Reboot)

Reset settings (Wipe Data)

Connect to a PC for firmware (Connect with MIAssistant)-->

⚠️ Note: Wipe Data removes all user data, including photos, contacts and apps. If you do not have backup enabled in Mi Cloud, it will be impossible to restore information.

Using Fastboot for Advanced Users

If the Mi 9T doesn’t boot even in Recovery Mode, the last chance is Fastboot mode.It allows you to reflash the device through your computer, but requires drivers installed and the Mi Flash Tool program.

To get into Fastboot:

1. 🔌 Turn off your smartphone.
2. 🔘 Squeeze the power. + Loudness down on 5-10 seconds.
3. 🖥️ Connect the device to the PC through USB-cable.

The screen will show a picture of a hare in a hat-eared hat, which means that the Mi 9T is ready for firmware.

1. Download the official firmware for Mi 9T (codename davinci) from Xiaomi’s website.
2. Install the Mi Flash Tool and Qualcomm drivers.
3. In the program, select the downloaded firmware file and press Flash.

⚠️ Note: Firmware via Fastboot may result in a loss of warranty if you use unofficial builds.The official firmware from Xiaomi's site is safe, but always check for compatibility with the davinci model.

Battery problems: what to do if the smartphone is not charging

One of the most common reasons why the Xiaomi Mi 9T doesn't turn on is battery problems, which can be either a full discharge or a power controller malfunction.

• 🔌 Try another charger (preferably an original 18W charger). Non-original adapters may not provide enough current.
• 🔄 Clear the port. USB-C from dust and dirt with a wooden toothpick. 9T The port is located below and is often clogged.
• 🔋 Wait. 30-60 Sometimes the battery runs so low that the controller doesn't show any signs of life.
• 🔧 Check the cable – often the problem lies in the damaged wire, not in the smartphone itself.

If the charging indicator does not light up after these manipulations, the PMIC (Power Controller) may be defective, in which case repairs will be required at the service center, the average cost of replacing the PMIC for the Mi 9T is 2000-3500 rubles.

Frequent Mistakes and How to Avoid Them

Many users are exacerbating the Xiaomi Mi 9T problems by trying to turn it on in the wrong ways.

• ❌ Pressing the power button multiple times in the hope that the smartphone will come alive, which can cause mechanical damage to the button.
• ❌ Using uncertified firmware from questionable sources, often leading to a brick".
• ❌ Disassembling the hull without experience. 9T the retractable mechanism of the camera is easily damaged, and the display is glued to the frame.
• ❌ Ignoring backup before resetting settings: Recovering data after Wipe Data is almost impossible.

On the Xiaomi Mi 9T, the mechanical power button is connected to the board with a flexible plume. With frequent pressing, it can move away from contacts, which will cause the smartphone to stop responding to on. If other methods do not help, check the plume at the service center.

If you are not sure of your actions, it is better to consult specialists. The average cost of diagnostics in Xiaomi service centers is 500-1000 rubles, which is cheaper than repairing after unsuccessful experiments.

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Before any firmware manipulation or settings reset, always back up your data via Mi Cloud or locally to your computer.

FAQ: Answers to Frequent Questions