Xiaomi Redmi 9: What to do if the phone does not respond to the buttons

Xiaomi Redmi 9 is one of the most popular budget smartphones, but even it is not immune to sudden freezes. The screen does not respond to touch, buttons do not work, and the phone turns into a brick? Don't panic: in 90% of cases, the problem can be solved without going to the service center. In this article, we will analyze all possible causes of the freeze — from software failures to hardware malfunctions — and give step-by-step instructions for restoring the device.

It is important to understand that the algorithm of actions depends on the type of freeze:

📱 Soft-freeze: the screen works, but does not respond to touch (the interface “hangs»).
⚫ Hard Frieze: Full Stupor – screen black or frozen, buttons do not respond.
🔄 Cyclical reboot: The phone is constantly rebooted on the Redmi logo.

We'll look at solutions for every case, including emergency reboot, Recovery reset, Fastboot firmware, and even hidden engineering codes for diagnosing hardware problems. If you're unsure, skip the firmware partitions and call in the experts. But most methods are safe and require no special skills.

1. Forced reset: first step for any freeze

If Redmi 9 doesn't respond to touch or power button, try emergency reboot, which works with soft-freeze (interface is frozen but screen is on) and hard-freeze (complete failure).

For the Redmi 9 (and most Xiaomi models from 2020), the combination of:

Press the power button + volume button at the same time.
Hold for 10-15 seconds until the screen goes out and the phone vibrates.
After vibration, release the buttons - the device will restart.

⚠️ Warning: If after the reboot the phone again hangs on the logo MI longer than 5 minutes is a sign of firmware damage.

📊 How often do you have a Xiaomi Redmi 9?

Once a week.

Once a month

Only after the updates

Never hung up.

2. Diagnostics of the cause of the freeze: software failure or “iron”?

Before you reset, identify what caused the problem.Redmi 9 may freeze because of:

🔄 Application conflict (especially after updates or installations) APK source).
📱 Memory overload: If less than 1 GB is free, the system begins to “brake».
🔋 Faulty battery: if the discharge is below 15%, failures are possible.
🛠️ Firmware damage (for example, after a failed update) MIUI).
💥 Hardware problems: the departed screen plume, overheating of the processor.

To check the program part:

If the phone is reacting at all, try opening Settings → About Phone → MIUI version and tap 7 times on the Kernel line. This will open a hidden diagnostic menu.
Enter the code ##4636### and the Test menu will open to check the sensor, battery and network.

How to check the processor overheating?

If the phone heats up above 60°C (checked in apps like CPU Monitor), it can cause freezes, clean the case of dust and avoid games when charging.

Critical symptoms of hardware problems:

🔥 The phone is heating up even in standby mode.
🔌 Does not charge or disconnect when connecting charging.
📵 No Wi-Fi or network, although the antenna is not serviceable.

In these cases, a diagnosis is required in the service.

3. Reset via Recovery: If the phone doesn't boot

If Redmi 9 is stuck on the logo or cyclically rebooting, resetting via the Recovery menu will help.This method does not delete data if you choose the right item!

Instructions:

Turn off the phone (if it doesn’t respond, use the forced reboot from the first partition).
Press the power button + volume button and hold until the Mi Recovery logo appears.
From the menu, select the language (English/Chinese) and go to Reboot → System (if the phone boots) or Wipe Data → Wipe All Data (full reset).

⚠️ Warning: Wipe All Data will delete all data, including photos and apps! If you need to save files, try Reboot to System first or connect to your PC in Fastboot mode (see next section).

Get out. SIM-memory-card|Connect the phone to charge (minimum 30%)|Download the firmware for your model (in case the reset does not help)|Take pictures of important data from the screen (if the phone is working at all)-->

4.Firmware through Fastboot: A last resort

If resetting through Recovery doesn't work, you'll have to refashion your phone in Fastboot mode, which is the most reliable way, but requires a computer and minimal technical skills.

What you need:

🖥️ Windows computer 7/10/11 (For the Mi Flash Tool).
🔌 Cable USB (preferably original).
📁 Firmware for Redmi 9 (download from the official Xiaomi website by model) M2003J15SS or M2004J19G).
🛠️ Mi Flash Tool (last version).

Step-by-step:

Turn off your phone and press the power button + volume down button to enter the Fastboot (the image of a hare in a hat will appear).
Connect your phone to your PC. Install the drivers (if Windows doesn't find them, download Xiaomi USB Drivers).
Unpack the firmware (file with.tgz extension) and open the Mi Flash Tool.
In the program, click Select, specify the path to the folder with the firmware, then Refresh (should appear). COM-port).
Select Clean All (complete clean) or Save User Data (save data, but may not work).
Press Flash and wait until it is completed (5-10 minutes).

⚠️ Warning: If the process is interrupted, the phone can turn into a brick! USB And don't turn off your PC while you're running the firmware. 0x8007001f, try another USB-port or disable the antivirus.

💡

Before firmware, check the phone model in Fastboot with the team

fastboot getvar product

5. Hardware problems: when to carry in the service

If none of the methods worked, the problem could be the iron.Typical faults of Redmi 9:

Symptoms.	Possible cause	Decision
The phone turns off at 30-50% charge	Battery wear (capacity below 70%)	Battery replacement (cost) ~1500–2500 ₽)
The screen flickeres or does not respond to touch	Display plume has gone or touchscreen is damaged	Snap-steeling or screen replacement (~3000–5000 ₽)
The phone warms and turns off when loaded	Drying thermopaste on the processor	Cleaning and replacing heat paste (~1000–2000 ₽)
Not included after a fall/hit	Damage to the motherboard	Diagnostics in the service (repair from 2000) ₽)

💡 How to check hardware problems on your own:

🔋 Connect charging: if the indicator doesn't burn, the problem is with the battery or power controller.
🔊 Call the phone: if you hear a sound, but the screen is black, the display is defective.
🌡️ Touch the case: if one part is hotter than the other, local overheating (e.g., processor) is possible).

💡

If the phone doesn't turn on even after the firmware is up, 90 percent of it is the hardware. Don't waste time on software methods, bring it to the service.

6. Prevention of hangings: how to avoid problems in the future

To prevent Redmi 9 from freezing again, follow the following simple rules:

📲 Update. MIUI regularly, but don’t install beta versions (they often contain bugs).
🧹 Clean the cache once a month: Settings → Warehouse → Clear the cache.
🚫 Do not install applications from unknown sources (especially hacked ones» APK).
🔋 Keep an eye on the battery: do not discharge below 10% and do not leave on charging overnight.
🛡️ Use a case - overheating and mechanical damage are a common cause of failures.

🔹 Hidden settings for optimization:

Activate Developer Mode: Settings → About Phone → MIUI version (shap 7 times).
In the developer menu (Settings → Additional → For developers) include:

📌 Useful Lifehack: If the phone starts to “slow down”, try rolling back the update MIUI. To do this, download the old firmware version from the Xiaomi website and stitch through Recovery (Install item). update.zip).

FAQ: Frequent questions about Redmi 9 hangouts

❓ The phone is stuck on the logo. MI After the update, what to do?

This is a typical problem when you fail to upgrade. Try: Wait 10-15 minutes, sometimes the system recovers itself, reset via Recovery (Wipe Cache, then Reboot). If it doesn't, flash your phone through Fastboot (section 4). ⚠️ Do not interrupt the update process – it can damage the firmware!

❓ Can I recover data after resetting through Recovery?

If you choose Wipe All Data, the data is deleted irrevocably: 📷 Photos and videos can be recovered using programs like DiskDigger or Recuva if the phone is PC-defined). 📱 Contact and SMS Restore from a backup of your Google Account (if sync was enabled). 💡 Tip: Regularly backup in Settings → System system → Backup.

❓ Why the phone got stuck after the fall?

Mechanical damage can cause damage: 🔌 Disconnection of the screen plume (leads to a “black screen” or lack of response to touches). 💥 Damage to the motherboard (phone not switched on or cyclically rebooted). 🔋 Battery break (symptom: phone turns on only from charging). 🔧 Solution: Take your phone apart (if you have experience) and check the connections. Otherwise, bring it to the service.

❓ How to Avoid Hazards When Playing?

Redmi 9 is not designed for heavy gaming (like Genshin Impact or Call of Duty) to reduce lags: 🎮 Lower the graphics in the game settings. ❄️ Use a cooler or play in a cooler room. ⚡ Close the background applications through Settings → Annexes → Launched. 🔄 Enable game mode in MIUI: Settings → Special facilities → Turbo-playing mode.

❓ What to do if the phone is stuck and does not respond to the buttons?

Even if the forced reboot (Power + Volume Up) doesn't work: Connect your phone to charge for 30 minutes, maybe the battery has gone down. Try Power + Volume up + Volume down (sometimes triggered on dead devices). If nothing works, it's a hardware glitch. Contact the service.