Xiaomi phone turns on and off: causes and 10 ways to eliminate

Why is Xiaomi’s smartphone fixated on rebooting?

Your Xiaomi turns on for a few seconds, shows the MI logo or download animations — and then turns off, repeating this cycle endlessly? This problem (known as bootloop) occurs on models from the Redmi Note 10 to the POCO F5, and its causes can be both software and hardware.

- Damaged firmware after a failed update or manual intervention (for example, through TWRP);

Failure in the EFS section (where IMEI and calibration data are stored)

- A faulty battery that does not hold voltage at peak load;

Oxidation of contacts on the motherboard after moisture.

In 60 percent of cases, you can solve the problem yourself without visiting a service center, and here are the step-by-step methods, from the simplest to the most complex, taking into account the specifics of Xiaomi devices.

1. Forced reset: the first step

Sometimes a cyclical reboot is caused by a temporary power controller failure.

1. Press the Power + Volume button for 15-20 seconds (even if the screen is unresponsive).
2. Release the buttons when the device vibrates or the screen goes off.
3. Wait 1-2 minutes and try to turn on the phone normally.

If the phone boots up after that, back up the data immediately! The probability of a second failure is high.

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On the POCO F4/F5 and Redmi K50 models, the hard reset sometimes requires the power + volume + camera button (if any).

Battery check: diagnostics without disassembly

A worn or bloated battery is a common cause of spontaneous shutdowns, and you can check its condition without disassembling:

• 🔋 Visual signs: If the phone’s body is deformed (especially from the battery side), the battery will swell.
• 🔌 Charging test: connect the original cable and power supply. If the phone only turns on while charging, the battery does not hold charge.
• 📊 Diagnostics via Fastboot: connect your phone to your PC, open the command line and enter: fastboot devices fastboot getvar battery-voltage Normal voltage - 3.7-4.2 V. If the value is below 3.3 V, the battery is critically discharged.

⚠️ Warning: If the phone only turns on when the cable is connected, but turns off when disconnected, this is a sign of complete degradation of the battery!

3.Reset to factory settings via Recovery

If the phone is even briefly turned on, try resetting through Recovery, a method that will delete all data, but often solves the bootloop problem.

Instructions:

On some models (Redmi Note 8 Pro, POCO X3 NFC) Instead of standard Recovery, it can be OrangeFox or TWRP. In them, the path to reset: Wipe → Format Data (input Yes manually).

4. Fastboot Flashing: If Recovery Doesn't Help

If the reset doesn't work, it's likely that the firmware is damaged, and if you do, you'll need to reinstall the software via Fastboot.

• 🖥️ Windows PC 10/11;
• 🔌 Original. USB-cable (better from the set);
• 📥 Firmware for your model (download only from the official Xiaomi website).

Step-by-step:

1. Install the Mi Flash Tool and ADB/Fastboot drivers.
2. Turn off the phone and turn to Fastboot mode: pinch Power + Volume down.
3. Connect your phone to your PC. In the Mi Flash Tool, select the downloaded firmware (file with the.tgz extension).
4. Press Refresh – your device should appear in the list.
5. Select Clean All mode and press Flash.

⚠️ Note: On models with a locked boot loader (Redmi Note 12, POCO X5) Before the firmware, you need to unlock Bootloader through the official Xiaomi tool, which will take 7-14 days to wait for confirmation!

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If after firmware the phone is still cyclically restarted, the problem is most likely hardware (motherboard, memory or power).

5. Checking the motherboard: what can be done independently

If the software methods did not help, the reason may lie in hardware malfunctions:

• 💧 Contact oxidation: If the phone fell into water or was in a damp environment, the contacts on the board could oxidize. Visually, it looks like a white or green plaque.
• 🔥 Chip overheating: if the phone was warmed up before crashing, the processor or memory module could fail (eMMC/UF).
• 🔌 Tap. BGA: microcracks in the soldering of chips (often after blows) manifest as periodic "flights" of power.

What can be done without a soldering iron:

1. Warm up the phone with a hair dryer (100-150°C) for 5-10 minutes, sometimes temporarily restoring contact between chips that have fallen off.
2. Check if the charging connector is wobbling - its damage can cause short circuits.
3. If the phone fell, check the screen for cracks – they may indicate damage to the plumes.

6. When to contact the service: prices and risks

If independent methods do not work, professional diagnostics remains, here are the approximate prices for repairs in service centers (for Moscow and the regions):

What to look for when choosing a service:

• 🔍 Check reviews on 2GIS or Yandex.Maps - look for mentions of warranty cases.
• 📄 Require a diagnostic report before the repair begins, indicating the exact cause of the malfunction.
• 💰 Compare prices: if repair costs less than 50% of the price of a new phone, there is a high risk of using used parts.

⚠️ In informal services often offer to "sweep the phone for 500" ₽". Cheap firmware without a card diagnosis could finally kill the device.

FAQ: Frequent questions about Xiaomi's cyclical reboot