Why Xiaomi Redmi is turning off: 12 reasons and proven ways to eliminate

Your Xiaomi Redmi suddenly shuts down for no apparent reason? The problem is found in models from Redmi Note 10 to Redmi 12, and there can be dozens of reasons, from a banal battery discharge to critical firmware errors. In this article, we will not only list possible malfunctions, but also show how to diagnose the problem in 5 minutes and fix it without going to the service center.

Xiaomi smartphones are sensitive to overheating and power issues, such as the Redmi 9A often turns off when charging due to a defective controller, and the Redmi Note 11 Pro can reboot when using the camera, and we collected data from 4PDA, MIUI Community and user feedback to identify common patterns and suggest workable solutions.

1. discharged or worn-out battery

The most obvious reason is critical battery discharge, but even if the indicator is 20-30%, the phone can turn off due to nonlinear wear of the battery. For example, in Redmi 8 after 500 charging cycles, the real capacity drops by 40%, and the device shuts down at 15-20% charge, although the screen displays 30%.

How to check:

• 🔋 Use the AccuBattery app (free on Google Play) to analyze the battery status. Pay attention to the Health parameter - if it is below 80%, it is time to change the battery.
• 📊 Check the discharge schedule in Settings → Battery → Battery usage: Sharp consumption spikes point to hardware problems.
• ⚡ Connect the charger – if the phone only turns on through 10-15 This is a sign of a deep discharge (below). 3.2V).

Critical information: Redmi models on a Snapdragon 6xx processor (for example, Redmi Note 9 Pro) with battery wear of more than 70% can work protection against overheating, even if the body temperature is normal.

Charging | Using the camera |Gaming |Talk on the phone |In standby mode-->

2. overheating of the processor or other components

Xiaomi Redmi chips MediaTek Helio (for example, Redmi 10) and Snapdragon 7xx (Redmi Note 11 Pro+) are prone to overheating due to the aggressive energy saving policy MIUI. At temperatures above 60 ° C, an emergency shutdown is triggered, but sometimes the sensors give false positives.

How to diagnose:

• 🌡️ Install. CPU Monitor AIDA64 Temperature tracking: Norm for Snapdragon up to 50°C under load, for MediaTek - up to 55°C.
• 🔥 Check if the battery is swollen (take care to press the back cover - if there are bulges, replace the battery immediately!).
• 🎮 Run a performance test in 3DMark. If the phone turns off during the test, the problem is the cooling system or thermal paste.

⚠️ Note: If the phone doesn’t turn on after it’s overheated, even after cooling down, it may indicate that the memory chip (typical for Redmi 9 after falls) has detached.

3. Software failures: MIUI, firmware, applications

Mistakes in MIUI firmware are a common cause of spontaneous shutdowns, such as MIUI 13.0.4-13.0.6 for the Redmi Note 11, which had a power management bug that caused the phone to reboot when the screen was locked, and the culprits could also be:

• 🤖 Damaged system files (for example, after a failed update) OTA).
• 📱 Application conflict (most often to blame SEOs like Clean Master or antiviruses).
• 🔄 Google Play Services Failures (especially After Updates).

How to fix it:

1. Go to Settings → Applications → Application Management and sort by Battery Consumption. Remove apps with abnormal consumption.
2. Clear the cache of system applications: Settings → Storage → Cache data.
3. If the problem has occurred after the update, roll back to the previous version of MIUI via Fastboot (instruction below).

Check the error log in Settings → About phone → Report log

Remove newly installed applications

Clear the cache of Google Play Services

Turn off energy saving for system applications-->

4. Failure of the charger or cable

Cheap cables or power supplies without Quick Charge support can cause power surges that shut the Redmi off while charging, especially for models with support for 33W/67W fast charging (Redmi Note 12 Pro+, Redmi K60).

Signs of a problem:

• 🔌 The phone is only turned on when connected to the original RAM.
• ⚡ The screen displays a notification saying, Charging suspended. Use the original adapter".
• 🔄 Charging is interrupted by 80-85% (battery protection).

Decision:

⚠️ Note: Using uncertified cables with a resistance greater than 0.5 ohms may cause the power controller to catch fire (several Redmi 10 cases reported in 2022).

• Check the cable for damage (curves, bare wires).
• Use only power supplies with Quick Charge 3.0/4.0 or Power Delivery support.
• Clean the USB-C port of dust and alcohol oxidation (at least 90%).

5. Hardware malfunctions: from the power controller to the motherboard

If the phone turns off even with a new battery and original RAM, the problem may lie in:

• 🔧 Power Controller (Redmi's frequent problem) 9/9A fall-out).
• 🔌 Charging connector (oxidation of contacts or mechanical damage).
• 📱 Memory. eMMC/UFS (When wearing cells, the phone can "hang" and turn off).
• 🛠️ Antenna module (in rare cases, short circuit in the module) NFC/Wi-Fi cause an emergency shutdown).

Diagnosis:

1. Connect your phone to your PC via USB and check if it's detected in Device Manager. If it's not, there's a problem with the USB controller or power.
2. Try to turn on the phone without SIM-If it works consistently, it's the slot or the contacts that are to blame.
3. Light a flashlight on the motherboard (with the phone disassembled), darkened or bloated capacitors are a sign of repair.

6. Failures after the MIUI or Android update

Airborne updates (OTAs) sometimes contain critical bugs, such as MIUI 14.0.3 for the Redmi K50i, where there was a bug that shut down the phone when Performance mode was activated. If the problem occurred after the update, try:

Option 1: Recovery rollback

1. Download the previous version of MIUI for your model from the Xiaomi Firmware website.
2. Rename the file to update.zip and place it in the root of the phone’s memory.
3. Press Volume Up + Power to enter Recovery.
4. Select Install update.zip and confirm the rollback.

Option 2: Clean installation via Fastboot (requires an unlocked bootloader!)

fastboot flash boot boot.img


fastboot flash system system.img




fastboot flash vendor vendor.img




fastboot reboot

⚠️ Note: When you roll back to an older version MIUI The recoil protection may go off and the phone will turn into a brick. 4PDA.

External factors: moisture, magnetic fields, mechanical damage

Even if the phone didn’t fall, external influences can cause spontaneous shutdowns:

• 💧 Moisture ingestion (even after drying, oxidation of contacts can occur after months).
• 🧲 Exposure to magnetic fields (for example, if the phone was lying next to the speaker or induction stove).
• 🔨 Microcracks on the board after impacts (symptom: the phone turns off when you press certain areas of the body).

How to check:

• Use a moisture test: put your phone in a silica gel bag for 24 hours, and if the problem goes away, condensation is to blame.
• Check the vibration response: If the phone turns off when shaken, it’s a sign of the battery plume detaching.
• Check the case for cracks near the antenna lines (they can close the contacts).

💡

If the phone turns off when you plug in your headphones, clean the 3.5mm or USB-C connector with compressed air, often the problem is short-circuiting the contacts due to dust.

What do you do if nothing helps?

If all of the above methods fail, radical measures remain:

1. Reset to factory settings (don’t forget about backup!): Settings → About phone → Reset settings.
2. Flashing through EDL (requires an authorized Xiaomi account and a Deep Flash cable).
3. Replacement of the motherboard (relevant in case of physical damage).

Before you carry your phone to the service, check it with IMEI on IMEI.info. If the status of "Blacklist" - the phone could be stolen and blocked by the operator, which also leads to spontaneous shutdowns.

💡

If the phone turns off with a characteristic "click" (condenser discharge sound), this almost always indicates a malfunction of the power supply chain. In this case, self-repair is not recommended - contact the service.

FAQ: Frequent questions about turning off Xiaomi Redmi