How to turn on the smartphone Xiaomi Redmi Note 9 Pro: all ways and solutions to problems

Why can't the smartphone be turned on?

Xiaomi Redmi Note 9 Pro is a reliable device, but even it sometimes refuses to start. The reasons can vary from banal battery discharge to serious software failures. Most often, users are faced with a situation where the screen remains black after a long downtime or unsuccessful update. 80% of the time the problem is solved without going to the service center, just know the correct sequence of actions.

It is important to distinguish between two states: when the phone does not respond fully to the buttons (no vibration, charging indication) and when it hangs on the MI logo or cyclically reboots. In the first case, it is a hardware problem (battery, plume, motherboard), in the second, it is a software failure. Our instructions will help diagnose the problem and choose the right way to turn on.

Method 1: Standard activation after discharge

If the Redmi Note 9 Pro is dead and doesn't show signs of life, don't panic. Modern lithium-polymer batteries have deep-discharge protection, but it takes 10-15 minutes to wake up to the charger. Use the original 33W power adapter to provide enough current to initialize charging.

After you plug in the charger, notice the indicator, if it catches fire red, it means the battery is charging.

  • πŸ”Œ Wait at least 10 minutes before attempting to activate
  • ⏳ Don’t press the power button in the first 5 minutes – let the battery controller stabilize
  • πŸ“± If the light doesn’t turn on after 20 minutes, try another charger or cable.
  • πŸ”„ When successfully charging, hold the power button 10-15 seconds before the logo appears

πŸ’‘

If the phone doesn’t respond to the original charging, try connecting it to your computer via a computer. USB-Sometimes it helps to wake up the power controller.

Method 2: Forced Reset (Hard Reset)

When the Redmi Note 9 Pro is getting stuck on the MI logo or boot screen, a forced reset is required, and this method works when the phone does not respond to touches after the system update. Important: a forced reboot does not delete user data, but interrupts all background processes.

Follow the following steps:

  1. Hold the Power + Volume button at the same time
  2. Keep them clamped for 15-20 seconds (even if a logo appears)
  3. Release the buttons when the screen goes out and the phone vibrates.
  4. Wait 30 seconds and press the power button for normal turn on.

Make sure the battery is at least 10% charged | Turn off all cables (charging, headphones) | Press and hold the combination exactly 20 seconds | Don't release buttons when the logo appears-->

⚠️ Warning: If the phone freezes on the logo again after a forced reboot, this indicates damage to the system files.

Method 3: Enable via Recovery Mode

Recovery Mode allows you to start your phone in diagnostic mode and reset or clear the cache, which is relevant if the Redmi Note 9 Pro is cyclically restarted or gives a β€œNo command” error.

To enter Recovery:

  1. Turn off your phone (use Hard Reset if necessary)
  2. Press the power + Volume increase for 5-7 seconds
  3. Release buttons when the Mi Recovery logo appears
  4. Use volume buttons for navigation and power button for selection
Recovery optionAppointmentEffects of consequences
RebootSystem restartSafe exit without modification
Wipe DataReset to factory settingsDeletion of all user data
Wipe CacheClearing the system's cacheEliminates freezes without data loss
Connect with MIAssistantConnecting to a PC for firmwareRequires official Mi Flash Tool software
What to do if Recovery does not start?
If after pressing the combination of buttons the screen remains black, this may indicate: 1. Damage to the connector of the power button (repair required) 2. No contact of the battery with the motherboard (try to slightly press the back cover in the battery area) 3. Power controller failure (requires diagnosis in the service)

Method 4: Connecting to a button-holding charger

This method helps in cases where the Redmi Note 9 Pro is not turned on due to deep battery discharge, but the power controller is still functioning.

  1. Connect the original charger
  2. Hold the Power + Volume button for 10 seconds
  3. Release the buttons, but leave the phone on charge
  4. After 5 minutes, try to turn on the usual way.

This combination causes the battery controller to go into emergency charging mode, and in most cases, after 10-15 minutes, the charging indication appears, after which you can turn on the phone in a standard way.

πŸ“Š How often does your Redmi Note 9 Pro refuse to turn on?
Never had such a problem.
1-2 times during the entire period of use
Regularly after a deep discharge
After failed system updates

Diagnostics of hardware problems

If none of the software methods worked, it's worth considering hardware faults.The Redmi Note 9 Pro has several vulnerabilities that can lead to power-on issues:

  • πŸ”‹ Battery: Bloating or deep discharge (less than) 2.8V) Makes the battery unrecognizable by the system
  • πŸ”Œ Charging connector: Contact oxidation or mechanical damage
  • πŸ“± Display plume: When damaged, the screen remains black, but the phone can vibrate
  • πŸ”§ Power button: Sticking or tipping contacts (frequent problem after falls)

For self-diagnosis:

  1. Light a flashlight on the screen when charging is connected – if weak images are visible, the problem is the backlight
  2. Connect your phone to your PC – if the computer makes a connection sound, the power comes in
  3. Try to turn on the phone without SIM-memory-cards

⚠️ Warning: If the phone gets hot when connected to charging (more than 50)°C, immediately disable it, this may indicate a short circuit in the battery - a dangerous situation requiring professional repair.

Prevention of inclusion problems

To minimize the risk of recurring issues with the Redmi Note 9 Pro, follow these guidelines:

  • πŸ”„ Update the firmware only through the official Updater, avoiding customization ROM
  • πŸ”‹ Do not let the discharge below 10% – this reduces the battery life
  • πŸ“΄ Use high-quality chargers with Quick Charge 3.0 support
  • πŸ›‘οΈ Set protection against accidental resets in Settings β†’ Password and security
  • πŸ“± Clean the cache regularly through Settings β†’ Warehouse β†’ Cleanup

Pay special attention to system updates before installing a new firmware:

  1. Create a backup through Settings β†’ Additional β†’ Backup
  2. Make sure the battery level is above 50%
  3. Connect to a stable Wi-Fi network

πŸ’‘

Regular cleaning of the system cache (once a month) reduces the probability of software failures by 40% according to statistics of Xiaomi service centers.

FAQ: Frequent questions about the inclusion of the Redmi Note 9 Pro

The phone vibrates when you press the power button, but the screen remains black. What do you do?
This is a typical sign of a problem with the screen lighting or the display plume. Try: Bring the phone to a bright light source - if the image is barely noticeable, the backlight is faulty Connect to the TV through USB-C β†’ HDMI adapter – if there is a picture, the problem in the display Contact the service to check the plume (cost of repair) ~1500-2500β‚½)
When you upgrade, the phone turns on, but it shuts off. How do you fix it?
This indicates that the firmware is incompatible with your phone modification. Solutions: Log in to Recovery and select Wipe Cache If it doesn't work, reset via Wipe Data (lose data) Fastboot phone with the official firmware for your model (miatoll for the global version) Use only firmware from en.miui.com for your region.
Can I turn on my phone without a power button?
Yes, there are several ways: Connect the charger – some phones turn on automatically when charging Use OTG-cable with mouse: connect USB-mouse to phone, then click left button For models with unlocked bootloader: connect to PC and send adb reboot command If the button is physically damaged, it will need to be replaced (cost) ~800-1500β‚½).
How long does it take to hold the power button to force shutdown?
For Redmi Note 9 Pro, the following time intervals apply: 5-7 seconds - standard shutdown 10-15 seconds - forced reboot 20+ seconds - login to Fastboot (if held with the volume button) If the phone does not respond to the 20 seconds retention, this indicates a hardware malfunction.
How to distinguish a software failure from a hardware failure?
Do this test: Connect your phone to charge for 30 minutes Try logging in to Recovery or Fastboot Check your PC connection response (device connection sound) If the phone is responding at all (vibration, sounds, indication), the problem is software. Complete lack of response is a sign of hardware malfunction.