Introduction: When Slow Booting Is a Problem
Did you press the power button and the Xiaomi or Redmi screen freezes on the MI logo for 30 seconds, a minute or longer? Or does the smartphone turn on but "thinks" before the desktop arrives? This behavior is not always cause for panic, but it can not be ignored. Slow boot can be a symptom of both software failures and hardware malfunctions that will eventually lead to complete loss of functionality of the device.
In this article, we’ll look at all the possible reasons why Xiaomi, Poco, and Redmi phones (including the 2023-2026 models) can last, from overloaded memory to a damaged charging connector, and give step-by-step instructions on how to fix the problem without resorting to a service center.
If your smartphone is not just slow to load, but hangs on the logo or cyclically reboots, skip the first sections and immediately go to the block about hardware reset or bootloop treatment.
Top.-5 The most common causes of slow loading
According to service centers, 80 percent of Xiaomi’s long loads are due to software problems, not hardware breakdowns.
- 📱 Overflowing memory: less than 1 GB of free space on the system partition slows down all processes, including booting.
- 🔄 Failures after update MIUI: Incorrectly installed firmware or version conflict.
- 🧹 Cracked cache: temporary files of system applications take up gigabytes and slow down the start.
- 🔋 Discharged or worn-out battery: at voltage below 3.5V The phone can "think" before switching on.
- 🛠️ Damaged system files: often after manual intervention (root, modified firmware).
Less commonly, hardware problems, such as oxidized battery contacts, faulty flash memory, or a damaged charging connector, require a device to be disassembled.
How to diagnose a problem: 3 tests
Before you start repairing, determine if it's a software failure or a hardware failure.
- Cold Start Test: Turn off your phone for 5 minutes, then turn it on. If you download longer than 1 minute, there's a problem.
- Safe Mode Test: Press the power button before the turn off menu appears. Press and hold off "Stop" → you will be prompted to switch to Safe Mode. Confirm. If the phone is turned on quickly, it is the fault of third-party software.
- Charging test: connect the original cable to 5V/2A charging and try to turn it on. If the loading speeds up, the battery is a problem.
If your phone turns on fast in Safe Mode and slow in Normal Mode, remove apps installed in the past 2 weeks. Start with optimizers, antiviruses and launchers.
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In the Settings menu → About Phone → MIUI version, click 5 times on the line with the version, and the Developer Mode menu will open. There, turn on the Download Time to see the exact numbers.
Overflowing memory: how to clean the system partition
Xiaomi’s MIUI smartphones are particularly sensitive to the lack of space on the system partition. If there is less than 1-1.5 GB left, the system starts to slow down when booting, as it can not create temporary files.
Check the vacant space:
- Go to Settings. → Memory.
- Check out the system memory (not to be confused with the user memory!).
- If it is less than 1.5 GB free, clean it immediately.
How to make room:
- 🗑️ Remove the app cache: Settings → Annexes → Select an application → Memory. → Clear the cache.
- 📸 Transfer your photo/video to a memory card or to the Mi Cloud.
- 🎮 Remove unused games – they take up to 5GB.
- 🔍 Use the built-in Cleanup utility (broom icon in the app menu).
Remove the cache of system applications|Transfer media files to SD-map|Delete APK-files from the Download folder|Disable Auto-Update Apps in Play Market|Check the.thumbdata folder (hidden sketches)-->
If there is still a lot of free space after cleaning, try resetting the partition cache (does not delete user data):
- Turn off the phone.
- Press Volume Up + Power before the Mi Bunny logo appears.
- Select Wipe Cache Partition (Change Volume Buttons).
- Confirm and reboot.
Battery: Why Discharge Affects Power Speed
Lithium-polymer batteries in Xiaomi smartphones degrade over time. After 300-500 charging cycles, their capacity drops by 20-30%, and the voltage at low charge may not be enough to start the system quickly. If the phone only turns on for a long time at a discharge below 15-20%, the battery is to blame.
How to check the status of the battery:
- Enter the dialer code ##4636##.
- Select Battery Information.
- Look at Charge Level and Status, if Unknown or Bad status, the battery is faulty.
| Symptoms. | Probable cause | Decision |
|---|---|---|
| Long turn on when the charge is below 30% | Battery wear (capacity < 70%) | Battery replacement |
| The phone turns off at 10-15% charge | Calibration of the battery controller | Full discharge/charging cycle |
| Slow loading only in the cold | Chemical processes in the battery are slowed down | Heat your phone to room temperature |
| Hanging on the logo with the connected charger | Faulty power controller | Diagnostics at the service center |
If the battery is swollen (visible by the raised screen or the warping of the case), immediately turn off the phone and do not use it until the battery is replaced!
How to check the battery bloating without disassembling?
Software solutions: from cache to firmware
If hardware tests show no problems, the reasons for slow downloads are in MIUI or installed applications, and start with the safest method, which is to clean the cache.
1. Clearing the cache and data of system applications
The cluttered cache of com.miui.home and com.android.systemui are the most commonly to blame for the brakes.
- Settings → Applications → Application Management → Show everything.
- Find MIUI Launcher and System UI.
- Click Memory → Clear the cache and Clear the data.
2.Rejection of MIUI updates
If the phone is slow to turn on after the update, try rolling back:
- Download the old firmware version for your model from en.miui.com.
- Rename the file to update.zip and place it in the root of the memory.
- Press Volume Up + Power, select Install update.zip.
3. Reset to factory settings
If nothing helps, do a hard reset (all data will be deleted!):
1. Turn off the phone.
2. Press Volume up + Nutrition.
3. Select Wipe Data/Factory Reset.
4. Confirm and restart.💡
Before reset, remove the memory card and SIM – these can be damaged when formatting the system partition.
Hardware reset: when and how to do
If the phone is stuck on the logo or cyclically rebooting (bottle), a forced reset via Fastboot or Recovery is required.This method is suitable for all Xiaomi models, including the Redmi Note 12, Poco X5 and Mi 11.
Warning: Hardware reset deletes all data, including photos and contacts. If the phone is turned on in any way, back up first through Settings → Additional → Backup.
Instructions for Recovery Mode:
- Turn off the phone (if it doesn’t respond, press the power for 20 seconds).
- Press Volume Up + Power before Mi Bunny appears.
- Select the language (volume buttons) and Wipe Data.
- Confirm the reset and wait for the reboot (may take up to 10 minutes).
If resetting via Recovery didn't help, try flashing your phone through Fastboot using the Mi Flash Tool.
- 🖥️ Download the official firmware for your model.
- 🔌 Install Qualcomm or Mediatek drivers (depending on the processor).
- 📱 Connect your phone in Fastboot mode (clip Volume Down) + Nutrition).
- 🛠️ In Mi Flash Tool, select Clean All and start firmware.
What to do if the Mi Flash Tool is in error?
Bootloop (Cyclical Reboot): Causes and Treatment
Bootloop is when Xiaomi's phone turns on, reaches the MI logo or download animation, and then restarts over and over.
- 🔧 Failed update MIUI (interrupted).
- 🤖 Damage to files /system or /boot.
- 🔌 Flash memory failure (especially on older models with eMMC).
- 🔋 Critical battery discharge during the upgrade.
How to cure a bootloop:
- Hard reset (if the phone ever boots to the menu): Battery → Remove for 1 minute → Insert back → Press Volume up + Power → Wipe Data
- Firmware via Fastboot (if reset didn't help): 1. Download the firmware with the extension.tgz 2. Unpack it in a folder. 3. Connect your phone to Fastboot 4. Launch. flash_all.bat (Windows)
- Flash memory replacement (if the firmware fails or EMMCDL errors are detected).
Note: if the bootloop occurred after trying to get root or install custom firmware, you can restore the phone only through the use of the phone. EDL-This requires an authorized Xiaomi account and the Mi Flash Pro program.
Prevention: How to Avoid Slow Booting in the Future
To make sure that Xiaomi phone is always on fast:
- 📵 Do not turn it off more than 1 time a week (frequent reboots wear out flash memory).
- 🔋 Keep your battery in the range of 20-80% to extend its lifespan.
- 🗑️ Once a month, clean the cache through Settings. → Memory. → Cleanup.
- 🔄 Don't install updates. MIUI airborne (OTA) charge below 50%.
- 🛡️ Don’t use the Play Market’s “optimizers” and “cleaners” – they often break system processes.
If you like to experiment with the scalp:
- 🔧 Before installing custom recovery (TWRP) backup the section EFS.
- 📦 Use only firmware that is tested on your model (for example, for Redmi Note 11 will not fit firmware from Poco). X4, even if the iron is the same).
- 🔌 Only use the charger when the charger is connected (voltage should not fall).
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The most common reason for Xiaomi’s bricks is interrupted firmware. If the upgrade process is longer than 20 minutes, DO NOT try to restart the phone.