You plugged Xiaomi into charging, but the indicator doesn't light up, and the percentage of the battery is still standing or the device is not responding at all? This problem is familiar to many owners of the brand's smartphones - from the budget Redmi Note to the flagship Xiaomi 14. The reasons can lie in both banal cable damage and serious hardware failures of the power controller.
In this article, we will look at all the possible reasons why Xiaomi stopped charging, from software glitches to physical breakdowns, you will get step-by-step instructions with the photo, a table of typical symptoms and their solutions, as well as tips on how to avoid repeated problems. Particular attention will be paid to models with fast charging (for example, POCO F5 or Redmi K60), where faults are often associated with overheating or incompatible adapters.
Before you bring your phone to the service center, try the methods in this article — 80 percent of the time, it's solved by yourself in 10 to 30 minutes, and if you've tried any of these, skip the familiar steps and move on to advanced diagnostics.
1. Checking of charger and cable
Start with the simplest thing, component testing, and according to Xiaomi Service, 35 percent of all "no charge" problems are solved by replacing a cable or adapter, and here's how to test them for performance:
- 🔌 Try another power adapter.Use the original unit from Xiaomi or a certified Quick Charge-enabled counterpart 3.0/4.0 (For fast-charging models, the power must meet the phone’s requirements (e.g. Redmi Note). 12 Pro+ demand 120W).
- 📱 Connect the cable to another device, and if it doesn't charge even a laptop or a power bank, the problem is the cable.
- ⚡ Check the socket or USB-Connect the charger to another socket or port on your computer. POCO and Redmi when connected to USB 2.0 may display a message "Slow Charging" - this is normal, but the process should go.
If the cable and adapter are replaced, the phone is charging, the problem is solved. If not, move on to the next step. Using non-original cables with thin veins (less than 24 AWG) can overheat and damage the power controller in the phone.
2. Cleaning the USB-C connector and checking contacts
A contaminated USB-Type C connector is the second most common cause of charging problems. Dust, pocket pile, or contact oxidation can interrupt the connection. Here's how to properly clean the connector:
- Turn off the phone and get it out. SIM-card/memory card (if any).
- Light the connector with a flashlight. If you see debris, carefully remove it with a plastic or wooden toothpick (NOT metal!).
- Use compressed air (a balloon) to blow out dust. Keep the balloon vertically to avoid fluid intrusion.
- Wipe the contacts with alcohol (90%+). Apply a few drops on the cotton swab and gently wipe the internal contacts. Let them dry for 5-10 minutes.
⚠️ Warning: Do not use sharp metal objects (needles, paper clips) - they can bend the contacts or close them. If after cleaning the phone still does not charge, check the connector for physical damage: bent pins, traces of corrosion or burnout (black dots).
☑️ Cleaning the connector USB-C
If the contacts are damaged, the connector will need to be replaced.In Xiaomi’s fast-charging models (such as the Xiaomi 13T), a faulty connector can block charging completely – the phone won’t even turn on.
3. Diagnostics of program failures
Sometimes the phone doesn't charge because of firmware glitches or app conflicts, especially after MIUI updates or custom firmware installations.
- 🔄 Reset the phone. Press the power button for 10-15 seconds until the logo appears. MI. After restarting, try connecting the charger again.
- 📱 Run it in Safe Mode. To do this, press the power button, then hold your finger on the "Switch off" option until you request to go to Safe Mode. If the phone charges in this mode, there's a problem in one of the installed applications.
- 🔧 Reset the charging settings (for some models). Go to Settings → Battery → Battery settings → Resetting charging settings.
If the phone is charging in Safe Mode, remove recently installed apps (especially those that request access to power management). For models with MIUI 14+, also check the Battery Optimization settings in Settings → Applications → Application Management → Battery.
How do you get out of safe mode?
If the software methods didn't work, the problem could be in the damaged software of the power controller, in which case only firmware or repair in the service will help.
4. Checking the battery and the power controller
If the phone turns on but doesn't charge or charges extremely slowly (less than 1% per hour), the problem could be a worn-out battery or a faulty power controller.
| Symptoms. | Probable cause | Decision |
|---|---|---|
| The phone is only turned on when connected to charging, but does not charge. | Heavy battery wear (capacity < 50%) or chain break | Replacement of battery in the service |
| The charge is snatched (it is charged, then no) | Faulty power controller or damaged connector | Diagnostics in the service, replacement of the controller / connector |
| The phone is warm and does not charge above 1% | Short circuit in the battery or failure of the controller | Immediate power outage! Call the service |
| Charging is only in the off state | Software failure or damage to the power chain | Resetting or flashing |
To check the status of the battery:
- Enter the code ##4636## in the phone application.
- Go to the section Information about the battery.
- Check the charge level, condition and temperature. Normal temperature is 25-40°C. If the condition is listed as "bad" or the temperature is above 45°C, the battery needs to be replaced.
⚠️ Warning: If the phone gets too hot when connected to a charger (more than 50)°C) or the body is inflated - immediately disconnect it from the power supply and do not use it until the battery is replaced!
5. Advanced methods: multimeter test and flashing
If the basic methods didn't work, it's time to move on to deep diagnostics, which require technical skills or special equipment.
Multimeter voltage test
To check the voltage on the battery or connector will need a multimeter.
- Turn off your phone and disassemble it (or find the battery contacts on the board if you don't want to take the battery off).
- Set the multimeter in DC mode to 20V.
- Connect the black probe to the battery's minus contact, the red probe to the plus one.
- The normal voltage of the charged battery is 3.7-4.2V. If the indicator is below 3.0V, the battery is deeply discharged and may not take charge.
If the voltage is not present or is significantly below normal, try to wake the battery with a Li-ion battery recovery device (e.g. iMax B6). But remember: this is a temporary solution and you still need to replace it.
Fastboot flashing through Fastboot
If the phone is not charging due to a firmware failure (for example, after a failed update), flashing through Fastboot will help.
- Download the official firmware for your model from the MIUI Download website.
- Unpack the archive and install the Mi Flash Tool drivers.
- Connect your phone to your PC in Fastboot mode (clip Volume Down + Power when your phone is off).
- Start the Mi Flash Tool, select the firmware and press Flash.
⚠️ Warning: Firmware erases all data from your phone! Try backing up your phone using Mi first PC Suite if the phone is at least slightly responsive to the connection to the PC.
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If the phone is not detected in Fastboot, try holding the power button clamped for 30 to 60 seconds – sometimes it resets the “hang” power controller.
6. When to contact the service center
If none of these methods worked, the problem is probably hardware, and if you can't repair yourself, you can't repair yourself.
- 🔧 Damaged power controller (phone does not turn on, does not respond to charging, but the battery is good).
- 🔥 Traces of oxidation or burning on the board (visible when disassembling).
- 📉 The battery swelled or deformed the body.
- ⚡ Short circuit (phone warms strongly, smells of burns).
- 🛠️ The connector is damaged. USB-C (lopsided).
The cost of repairs in official service centers Xiaomi (in Russia for 2026):
| Type of repair | Cost (₽) | Date(s) |
|---|---|---|
| Replacement of USB-C connector | 1 200 – 2 500 | 1–2 |
| Battery replacement | 2 000 – 4 500 | 1–3 |
| Repair/replacement of the power controller | 3 500 – 8 000 | 3–7 |
| Diagnostics of fees | 500 – 1 500 | 1 |
Before the service visit:
- Make a backup copy of the data (if the phone is turned on).
- Check if the service has original parts for your model.
- Check if the warranty is valid (if the phone is under 12-24 months old).
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Official Xiaomi service centers use original parts, but repairs can take up to 2 weeks. informal workshops often run faster, but the risk of substandard parts is higher.
7.How to prolong the life of Xiaomi battery: prevention of problems
To avoid repeated charging problems, follow these guidelines:
- 🔋 Use original or certified chargers. Cheap cables and adapters without Quick Charge support can damage the power controller.
- 🌡️ Avoid overheating.Do not charge your phone in direct sunlight or during intense gaming (especially when you are in the sun). POCO F and Black Shark).
- 🔌 Don't keep your phone on charge all the time. Turn off power after reaching 80-90% (in the case of a battery). MIUI There is a function "Optimized charging").
- 📵 Keep a 40-60% charge if you don't use it for a long time, and a full charge or 100% charge for months will ruin the battery.
- 🔄 Update the firmware. In new versions. MIUI Frequently fixing food management bugs.
For fast-charging models (e.g., Xiaomi 12T Pro with 120W) it is also recommended to:
- Use only the original Xiaomi adapter (MDY-12-ED or similar).
- Do not connect your phone to charging in wet conditions (for example, after rain).
- Periodically clean the connector from dust (every 2-3 months).
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In the MIUI settings, there is a hidden option called Battery Status (path: Settings → About Phone → MIUI Version → Press 5 times on Core). Here you can see the actual battery wear as a percentage.