Xiaomi Redmi overheats? 10 ways to cool your phone quickly and safely

Your Xiaomi Redmi is hot like a pan and your battery goes down in an hour? Overheating is one of the most common problems Xiaomi smartphones have, especially in the Redmi Note series, POCO The reasons can vary from cache to worn-out heat paste, but the result is always the same: the phone slows down, turns off or even deforms the case. In this article, we will discuss why Xiaomi Redmi warms up and what to do about it – from basic actions to radical measures.

We will warn you right away: if the processor temperature exceeds 60°C in plain or 85°C under load is a critical signal. Continued operation without cooling can cause the battery to bloat or damage the motherboard. But don't panic: 90% of the time, you can solve the problem yourself without going to the service center.

We tested all methods on the Redmi Note 12 Pro models+, POCO X5 Pro and Redmi. 10C — And if you're not sure you can do it yourself, there's a checklist at the end of the article for diagnosis before you go to the master.

1. Causes of Xiaomi Redmi overheating: from harmless to critical

Before you cool the phone, you need to understand why it warms. Xiaomi Redmi has typical "pain" associated with the architecture of the Qualcomm Snapdragon and MediaTek Helio processors, as well as the features of the firmware. MIUI.

Here are the main culprits:

• 🔥 Background processes and viruses: Apps like Facebook, TikTok or MIUI Cleaner can load the processor 100% even in the background. → Battery → Battery utilization.
• 🎮 Games and heavy apps: Genshin Impact, Call of Duty Mobile or even Google Chrome with a dozen tabs warm up Snapdragon 732G before 70-80°C's 15 minute.
• 🔋 Faulty battery: If the phone is warming up even when charging on 5W, The battery might have swelled. Check the case on the bulge.
• ☀️ Overheating from the sun or heat: Redmi with AMOLED-screens (for example, Note 11 Pro)+) Heated up to 50 in the sun°C in the off state.
• 🛠️ Thermopaste problems: Through 2-3 The paste between the processor and the radiator dries out, especially in models with a metal body (POCO F3, Redmi K50).
• 📱 Firmware MIUI: Errors in updates (e.g, MIUI 14.0.4) can cause thermal throttling – when the phone artificially restricts performance but warms up.

The critical point: if your Xiaomi Redmi is warming to 60°C in plain (no games or charging) is a sign of hardware malfunction. immediately back up the data and contact the service.

2.Fast Cooling: What to Do Right Now

If the phone is already hot and you need to immediately lower the temperature, use these methods:

1. Turn off the phone. 10-15 Even when it's off, Redmi will cool faster than when it's in standby mode. Make sure it's on a flat surface (not on a pillow or couch!).
2. Plastic and silicone covers make heat loss worse. 15-20%. Metal bumpers (such as Spigen) can also act as a heat insulator.
3. Use a fan or air conditioner. Direct the airflow to the back cover (where the processor is located).
4. Turn off the charger. Quick charge (33W If the phone is discharged, use a wired charger on the battery. 10W.
5. Activate the aircraft mode. This will turn off the modules. 4G/5G, Wi-Fi and Bluetooth, which are also hot.

What can't you do?

⚠️ Warning: Don't put your phone in the fridge or freezer! A sudden temperature drop can cause condensation inside the case, which will lead to a short circuit. Also don't use wet wipes - water will get into speakers or microphones.

Software methods: settings MIUI heat-reduce

If your phone is warming regularly but not critically, try optimizing your firmware. MIUI has hidden settings that help reduce the load on the processor.

Background processes offline

Go to Settings. → Annexes → Application management → Autorun and disable autorun for all applications except system:

• 📱 Social networks (Facebook, Instagram, VK)
• 🎵 Music services (Spotify, Yandex Music)
• 📊 Analytical utilities (MIUI Cleaner, Security)

Productivity restriction

V MIUI There's a hidden power saving mode that limits the clock speed of the processor:

1. Open Settings → Battery and Performance.
2. Select Battery Mode → Energy conservation.
3. Enable the option to limit background activity.

This will reduce productivity by 20-30%, but the temperature will drop 10-15°C.

Update to firmware

Sometimes overheating is caused by bugs in MIUI. Check for updates:

1. Settings → About the phone → System update.
2. If you have an update, install it. Reset the cache after you restart (Settings) → Memory. → Clear the cache).

Important: If after the update the phone began to warm up stronger, reset the settings to the factory (Settings) → Additionally. → Recovery and discharge).

💡

If your Xiaomi Redmi only gets warm when using mobile internet, try switching from the mobile phone to the mobile phone. 5G on 4G customized SIM-- Modules. 5G (Snapdragon X53) They consume 40% more energy.

Hardware solutions: when software methods do not help

If the phone is warming up even after all the settings, the problem is the hardware.

Replacement of thermopaste

In the Redmi Note models 10 Pro, POCO X3 Pro and others with metal body heatpaste dries through 2-3 Replacing it lowers the temperature by a year. 15-20°C. For that:

1. Disassemble the phone (need a mediator and a screwdriver). T3/T4).
2. Remove the radiator from the processor, clean the old paste with alcohol.
3. Apply a new thermal paste (Arctic) MX-4 Or the Thermal Grizzly Kryonaut).
4. Get your phone together, check the temperature in AIDA64.

Cost: A self-substitution will cost 300-500 ₽ (The service will take 1000-1500 ₽.

Cooling cover or radiator

For gamers and active users, suitable:

• 🧊 Fan case (e.g. Black Shark Cooling Backplate) – reduces temperature by 8-12°C.
• ❄️ Gamers (Razer Phone Cooler) - attached to the back panel and remove heat.
• 🔥 Thermopads - replace the thermal paste, but require disassembly of the phone.

Checking the battery

The bloated battery is not only warming, it's dangerous!

• The phone body is “inflated” (especially noticeable on the screen glass).
• The phone turns off when 30-40% charge.
• Charging is jerky or not going at all.

If one of the items matches, replace the battery immediately: 1500-2500 ₽.

⚠️ Warning: If the phone keeps warming after the battery is replaced, check the power controller on the motherboard. 2000-4000 ₽.

5. Comparison of cooling methods: what works best?

We tested all the ways on the Redmi Note 12 Pro+ (Snapdragon processor 778G) under load (Genshin Impact for 30 minutes) Results in table:

Bottom line: The most effective method is to replace the thermopaste, but it requires disassembly, and a cooling case or background cleaning is a temporary solution.

💡

If your Xiaomi Redmi is only warmed in games, a cooling case is enough. If overheating is constant, check the thermal paste and battery.

6.How to prevent overheating in the future: prevention

To prevent Redmi from becoming a hot water heater, follow these rules:

• 🔄 Clean the cache regularly (Settings) → Memory. → Clean the cache. Do this once a week.
• 📴 Do not use your phone while charging while playing games or watching videos, which increases the battery and processor load.
• ☀️ Avoid direct sunlight. Even when it's off, the phone can heat up to 50.°C.
• 🔋 Charge with the original cable. Cheap AliExpress cables can give unstable voltages, which leads to overheating.
• 📲 Update apps: Older versions of WhatsApp, Telegram or games may conflict with the MIUI.
• 🛠️ Check the heatpaste once a year. If you're active, do it more often.

We also recommend installing a temperature monitoring app, for example:

• AIDA64 — shows the temperature of the processor, battery and communication modules.

Preventive tip: If you buy a Xiaomi Redmi used, be sure to check it for overheating with the AnTuTu Benchmark Test. if the temperature is above 75°C after 10 minutes of the test – refuse to buy.

7. When is it time to bring the phone to the service?

Not all problems can be solved by yourself.

• 🔥 The phone is still warmed even when it is off.
• 💥 The body swelled or cracked on the screen without falling.
• ⚡ The phone turns off when charged above 80%.
• 📉 Productivity has fallen in 2-3 once for no apparent reason.
• 🔊 There was a whistle or crack from the speaker (a sign of damage to the motherboard).

Average cost of diagnosis in the service: 500-1000 ₽. Repairs can cost in:

• Replacement of thermopaste: 1000-1500 ₽.
• Battery replacement: 1500-2500 ₽.
• Maternity board repair: 3000-8000 ₽.

⚠️ Warning: If the wizard suggests "flashing the phone for cooling" without diagnosis, it's a scam!

FAQ: Frequent questions about Xiaomi Redmi overheating