Xiaomi phones: what happened in 2026 and how to fix it

Xiaomi smartphone owners in 2026 faced a wave of unusual problems, from massive software failures to hardware defects in new models. MIUI 15, and the other part with changes in the company's policy towards regional firmware.

If you have a Redmi, POCO Or Xiaomi 14, the flagship, is slowing down, overheating, or not turning on at all — you're not alone. Service centers say that the number of calls is up 40 percent since 2023. MIUI, Battery problems in new batches and changes in the operation of global servers Xiaomi.

In this article, we will discuss:

• 🔍 The main symptoms of malfunctions and their causes
• 🛠️ Step-by-step instructions for diagnosis and repair
• ⚠️ What can not be done to avoid aggravating the problem
• 📊 Breakdown statistics by model (data from service centers)

Particular attention will be paid to the hidden problem with power controllers in smartphones on the platform Snapdragon 8 Gen 3, which Xiaomi has not officially reported, but which has already caused mass returns in Europe.

1. Massive failures after upgrading to MIUI 15

The most common problem of 2026 is freezes and reboots after installation MIUI 15. According to the forum. XDA Developers, complaints came from owners of more than 20 models, including Xiaomi 13T Pro, Redmi Note 12 Pro+ and POCO F5. Primary symptoms:

• 📱 The screen goes out and does not respond to pressing (forced reboot required)
• 🔄 Cyclical restart (bootloop) after update
• 🐢 Extreme slowing down of animations and lags when scrolling
• 📵 Network loss (SIM card not determined)

The reason lies in the incorrect optimization of the Android kernel 14 MediaTek Dimensity and Snapdragon processors 8+ Gen 1/2. Xiaomi has only acknowledged the problem through 3 months after release, releasing a patch in the version MIUI 15.0.4.0. However, many users report that even after the update, problems remain.

⚠️ Note: If your phone is stuck on the logo MI After the update, do not try to reset your settings via Recovery – this can lead to a loss IMEI. Use only the official Mi Flash Tool with firmware for your model.

How to temporarily solve the problem:

1. Reverse to the previous version MIUI through settings → The phone. → Version. MIUI → Three-point badge → Select a Service Package.
2. If rollback is not possible, perform a clean installation via Fastboot (instruction below).
3. Turn off automatic updates in Settings → The phone. → Updating the system → Settings (⚙️) → Auto-update.

Battery problems: why the new Xiaomi discharges in 4 hours

The second most common problem is the accelerated battery discharge in new models (Xiaomi 14, Redmi Note 13 Pro).+, POCO X6 Pro. Users complain that even with minimal load (messaging, calling) the charge drops by 1% per minute:

1. Defective power controllers in batches released in the first quarter of 2026.According to iFixit, the problem affects about 15% of devices with a Snapdragon 8 Gen 3 processor.

The phone is heated even in standby mode.

The charge is moving (fast, then slow).

- B Settings → Battery. → Use shows unrealistic consumption (e.g., “Screen – 80%” when the display is off).

2. error in the Deep Sleep algorithm in MIUI 15, which prevents the cores of the processor from going into energy-saving mode, as confirmed by Xiaomi engineers in a closed briefing for service centers.

How to check if there is a problem:

Install the AccuBattery app and check the battery health|Launch it ##4636## and watch the time of the standby|Connect to the charger and watch the temperature (should be) <35°C)|Check the Settings. → Battery. → Status of warnings-->

Decisions:

• 🔋 If the phone is new (up to 3 months), contact the service under warranty - Xiaomi replaces the power controller for free.
• 📉 For older models: roll back on MIUI 14 or install custom software (for example, LineageOS).
• ⚡ Temporary fix: Turn off Settings → Battery → Optimize charging and use charging power no higher 30W.

3.Network problems: why Xiaomi isn't catching 5G loses its signal

Since the beginning of 2026, users have been complaining about mobile phone problems:

• 📶 5G It only works in manual mode (automatic network selection falls on the 4G).
• 🔄 The signal is lost when moving (for example, in a subway or car).
• 📞 Calls are interrupted or made with a loud noise.

Reasons:

1. Frequency lock in global firmware. Xiaomi has limited support for some bands 5G (for example, n78) Models sold outside of China.
2. Error in Snapdragon modem X70 (Xiaomi 13 Ultra, 14 Pro).
3. Conflict with the VoLTE protocol in some operators (MTS, Tele2).

How to fix it:

1. Check the network settings: Settings → SIM-maps and mobile networks → Network settings → Network mode → Choose. 5G (or 4G/3G/2G) If you're optional 5G No, your firmware has blocked the frequencies.
2. Install. EU-firmware (e.g. xiaomi.eu) – it supports all bands.
3. For Snapdragon models, update the modem via Fastboot (instruction below).

💡

Before changing the firmware, make a backup copy IMEI Chamelephon is a tool that can help you restore your network if something goes wrong.

4.Overheating and trottling: why Xiaomi 14 and Redmi Note 13 heat up like irons

GSMArena tests show new Xiaomi smartphones heat up to 50°C even in normal use (social media, YouTube) in games, temperatures reach 60°C, which leads to trottling (forced productivity decline:

Insufficient thermal conductivity in budget models (Redmi Note 13, POCO M6 Xiaomi saved on graphite pads, which led to the overheating of the Dimensity 7050 chip.

2. Driver error GPU Adreno 750 (in Snapdragon 8 Gen 3) which makes the cores run at the highest frequency even in simple tasks.

3. Aggressive background activity MIUI 15 (e.g. Mi Cloud and Security App scan the system continuously).

How to reduce heat:

• 🧊 Turn off unnecessary background processes: Settings → Annexes → Application management → Auto-Start (disable everything except messengers and calls).
• 🎮 For gamers: install Game Turbo and limit FPS 60.
• 🔧 For advanced: replace the thermopaste (in Xiaomi 14 it can be done yourself).

⚠️ Warning: If the phone is heated without load (e.g. at night), this may indicate a short circuit in the battery!

5. Camera problems: blurred photos and errors in shooting

Many users of Xiaomi 13 Ultra and Xiaomi 14 have experienced camera defects:

• 📸 The main camera takes blurry pictures in low light.
• 🔴 When shooting a video, artifacts appear (green or purple stripes).
• 🚫 The camera app crashes with the error "Camera failed".

Reasons:

1. The firmware problem ISP (image processor) in MIUI 15.
2. Lens defect in batches released in January-February 2026 (affects) ~5% of devices).
3. Google Camera (GCam) on new models

Decisions:

• 📱 Update the camera app via Google Play (even if there are no updates, reinstall it).
• 🔧 Reset the camera settings: Settings → Annexes → Application management → Camera. → Warehouse → Clear the data
• 🛠️ If the problem is in the lens, contact the service – Xiaomi replaces the camera module under warranty.

💡

Before contacting the service, check if the problem is software, install an alternative camera application (for example, Open Camera) and take test pictures.

6.What to do if Xiaomi does not turn on (black screen, bootloop)

If your smartphone doesn’t respond to the power button, is stuck on the logo or shows a black screen, follow the algorithm:

1. Check the charging:

- Connect to another cable and power supply.

Keep charging for at least 30 minutes (even if there is no indication).

- Try charging from another device (for example, POCO or Redmi).

Forced reset:

- Press the power button. + Volume up on 10-15 seconds.

If there is a vibration, but the screen does not turn on, the problem is in the display or plume.

3. Fastboot mode:

- Connect the phone to the PC.

- Press the power button. + Turning down the volume.

- If the PC defines the device as Qualcomm HS-USB — Switch the stock firmware through the Mi Flash Tool.

Recovery mode:

- Press the power button. + Volume up.

Select Wipe Data (Settings Reset).

- Don't choose Wipe All!

⚠️ Warning: If the phone vibrates when connected to a charger, but does not turn on, this may be a sign of damage to the boot partition. EDL-Mode (requires an authorized Xiaomi account).

If nothing helps:

• 🔌 Check the motherboard for a short circuit (multimeter required).
• 🔋 Replace the battery (even if it didn’t swell, the controller could have failed).
• 📱 Contact the service to check PMIC (power-train).

7. How to avoid problems in the future: tips for operation

To make your Xiaomi last longer:

• 🔄 Do not update in the first 2 weeks after the release of a new MIUI — wait for feedback.
• 📴 Use original chargers (especially for models with Snapdragon 8 Gen 3).
• 🧹 Clean the cache once a month: Settings → Warehouse → Clear the cache
• 🛡️ Install antivirus (e.g. Malwarebytes) — MIUI trojan-vulnerable.
• 🔋 Don’t discharge your battery below 15% – it shortens its lifespan.

For gamers:

• 🎮 Use the Game Turbo to limit your FPS temperature.
• 🔇 Turn off Vibration when touching in games – this reduces heat.

For photographers:

• 📸 Regularly clean the camera lens with a soft cloth (dust and prints degrade quality).
• 🔍 Check out the updates for Google Camera (GCam) on the forum 4PDA.

💡

If you’re buying Xiaomi in 2026, give preference to models with a Dimensity 9200 processor.+ — They are less hot and less likely to suffer from software bugs than Snapdragon 8 Gen 3.

FAQ: Frequent questions about Xiaomi’s problems 2026 year