Why Xiaomi Phone Is Constantly Rebooting: A Complete Discussion of Causes and Solutions

If your Xiaomi smartphone starts to spontaneously reboot, it's not just an annoying glitch, it's a signal of a serious problem: at best, it's a MIUI update curve, at worst, a faulty battery that's about to rise. According to service centers, 68 percent of these cases are due to software failures, but the remaining 32 percent require physical repairs.

Complicating the problem is that a cyclic bootloop can block access to settings. For example, if a Redmi Note 10 Pro phone goes into reset right after the Mi logo, you won't even have time to open the recovery menu. In this article, we'll look at all the possible causes, from a banal overheating to a damaged charging connector, and we'll give checklists for diagnostics and step-by-step repair instructions.

We will pay special attention to Xiaomi models 2020-2026 (Redmi 9/10/11, POCO X3/X4, Mi 11/12), as their hardware platform often suffers from problems with the power controller. If your phone is older, check the section on battery wear, this is critical for devices for 3+ years of operation.

1. Software failures: virus, firmware, or application conflict

In 45 percent of cases, it's the software, not the hardware. The most common scenarios are that the MIUI update was flawed, the virus blocked system processes or the application in the background conflicts with the Android kernel. For example, after upgrading to MIUI 14, many POCO F3 users complained of endless reboots due to a bug in the GPU driver.

How to check:

• 🔍 Launch your phone in Safe Mode (hold the power button) → long tap on "Switch off" → "Safe Mode. If the reboots have stopped, the third-party application is to blame.
• 📱 Check the error logs through Settings → The phone. → Version. MIUI (Tap 5 times on the build number, then open for developers → Error logs).
• 🛡️ Scan your system for viruses with Malwarebytes or Xiaomi’s built-in Security.

If the phone reboots strictly 5-10 minutes after turning on, this is a typical sign of the Watchdog mechanism working, in which case only a full reset or flashing through the Fastboot will help.

After updating MIUI|When launching a specific application|By chance, no patterns.|When connected to charging|Another option-->

2 Critical firmware errors: bootloop and damaged partitions

Bootloop (a looped reboot on the logo) is when a Xiaomi phone cannot boot the system due to corrupted files in /system or /boot partitions.

• ⚡ Failed update by air" (OTA).
• 🔧 Wrong firmware through TWRP (For example, installing a custom recavator on a blocked loader).
• 💥 Power failure during the upgrade (battery sat down or pulled the cable).

How to get out of bootloop:

1. Hard Reset: Press Power + Volume up for 10 seconds, then select Wipe Data from the Recovery menu.
2. Fastboot: fastboot flash boot.img fastboot flash system.img (download the official firmware for your model on the Xiaomi website).
3. Recovery via Mi Flash Tool (unlocked bootloader only).

⚠️ Note: If after resetting the phone still goes to bootloop, do not try to stitch it again without diagnosing the connector. USB And the power controller, and the damaged iron can short-circuit the firmware.

3. Battery problems: bloating, wear, charge controller

The battery is the most vulnerable component in Xiaomi smartphones, and 3 out of 10 spontaneous reboots are related to:

• 🔋 Battery bloating (presses on motherboard, causing short circuits).
• ⚡ Wear capacity (if the phone turns off at 30-40%, although it shows charge).
• 🔌 Failure of the charge controller (e.g., burned) BQ25890 in the Redmi Note models 8/9).

How to diagnose:

1. Call the engineering menu: dial ##4636## → Battery information. If Health Level is below 70%, the battery needs to be changed.
2. Check your physical condition: put your phone on a flat surface and spin it, and if it's walking like a top, the battery is swelling.
3. Connect to Charging: If the phone only reboots when charging, it’s the controller or USB-C connector that’s to blame.

⚠️ Warning: If the battery is swelling, you can't try to charge it or disassemble the phone yourself. Risk of fire or explosion! Take the device to the service or dispose of the device according to the rules (at the points of reception of batteries).

Phone turns off at 20-30% charge |Customs deformed or "plays" when pressed | Charging goes jerky (it goes, then stops) |Phone warms even in simple |Reboots occur when connected to the network-->

4.CPU overheating: why Xiaomi is switching off from high heat

Xiaomi smartphones on Qualcomm Snapdragon chips (such as the Redmi Note 11 Pro+ with the Snapdragon 695) often suffer from thermal throttling, a protective shutdown when overheated. The normal operating temperature of the processor is up to 60 ° C, but if it exceeds 85 ° C, the phone is forced to restart to avoid damage to the chip.

Causes of overheating:

For diagnostics, use the CPU Throttling Test (shows if the processor is reducing the frequency due to overheating). If so, clean the cooling system immediately.

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If the phone overheats when charging, try using Xiaomi’s original 33W power supply instead of cheap ones. Non-original charging often gives off unstable voltage, which leads to overheating of the power controller.

5. Hardware malfunctions: board, connectors, soldered components

If the software methods didn't work, the problem is the hardware.

• 🔌 Oxidation/damage of the charging connector (often after moisture is ingested).
• 📱 Crash of memory chip or processor (due to falls or overheating).
• 🔋 Failure of the power chains (burned condensers or throttles on the board).
• 📡 Problems with the antenna module (if reboots occur when calls are made).

How to diagnose without disassembly:

1. Shake the phone: if you hear a rattle, a component (such as a vibration motor or speaker) has fallen off.
2. Connect to a PC: If the phone is identified as a Qualcomm HS-USB QDLoader 9008, the eMMC chip is burned (map repair is needed).
3. Check for moisture: shine a flashlight in the charging connector - is there green oxides?

⚠️ Warning: If the phone reboots whenever you touch the body (such as pressing the screen), it's a sign of a microcrack on the board. Self-repair is impossible - you need soldering in the service with a microscope.

Conflicts with SIM-map

Rarely, but it happens: Xiaomi phone goes into reboot due to problems with the communication module.

• 📶 Incompatible SIM-Map (especially relevant for Redmi with support) 5G, if the operator has not updated the modem firmware).
• 🔄 Failure to work IMEI (If the phone has lost its serial number after the firmware).
• 📡 The tower conflict 4G/5G (roaming).

How to check:

1. Extract. SIM-If you stop rebooting, you're not using the card, you're using the phone for 24 hours.
2. Check IMEI: dial *#06#. If Null or Unknown is displayed instead of the number, the communication module is corrupted.
3. Reset network settings: Settings → SIM-maps and mobile networks → Resetting network settings.

If the problem is in IMEI, you can restore it via the engineering menu (#36446337##) or the NVRAM firmware (requires root rights).

7. When to contact the service: prices and risks

If you’ve exhausted all the options from this article, it’s time to carry the phone for repairs. Here are the estimated prices for 2026 for popular Xiaomi models:

⚠️ Note: Before handing over your phone to the service, make a backup copy of the data via Mi PC suite ADB (If the phone is still on, after the board is repaired or flashed through EDL All data will be erased without recovery.

Avoid garage-makers who promise to fix a phone for 500 rubles. Cheap repairs often result in:

• 🔥 Use of non-original spare parts (for example, batteries without bloating protection).
• 🛠️ Damage to the board during soldering (overheating of components).
• 📱 Losing warranty (if the phone is still on Xiaomi warranty).

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If your Xiaomi warranty (up to 12 months from the date of purchase), do not disassemble it yourself! Contact the official service center - repair warranty will cost free, even if the battery is to blame.

FAQ: Frequent questions about Xiaomi reboots