Xiaomi Redmi Note 4 is one of the most popular smartphones of the brand, but even it is not immune to problems with power. If your device suddenly stopped responding to the power button, do not panic: in 80% of cases, the problem can be solved independently without going to the service center.
In this article, weโll look at all possible scenarios for why the Redmi Note 4 doesnโt turn on, from basic checks to complex firmware manipulations. Youโll learn how to tell a โfalseโ breakdown from a serious malfunction, what tools youโll need to diagnose, and when itโs really worth carrying your phone for repair.
Important: the instructions in the article are relevant for all modifications of the Redmi Note 4 (including the Redmi Note 4X and versions with Snapdragon processors 625/Helio X20). If your smartphone got into the water or was subjected to mechanical damage, immediately go to the section about hardware breakdowns.
Basic Diagnostics: What to Check First
Before you take apart your phone or search for a service center, follow 5 simple steps to rule out the obvious causes of a malfunction, often in small things like oxidized charging cable contacts or โhungโ power saving mode.
Start with a visual inspection of the device:
- ๐ Check the charging cable and adapter: try charging your phone with another cable (preferably original from Xiaomi.
- ๐ Connect to another power source: sometimes the problem is in the socket or USB-Try charging from a power bank or other adapter with output 5V/2A.
- ๐ฑ Press and hold the power button for at least 20-30 seconds. If the battery is completely discharged, it may take several minutes for signs of life to appear (charge indicator or vibration).
- ๐ Listen to the sounds: when you connect the charger, the serviceable Redmi Note 4 emits a short beep, and its absence may indicate problems with the motherboard.
- ๐ก๏ธ Check the body temperature: If the phone gets very hot when connected to a charge, it could be a sign of a short circuit.
If you're still not showing any signs of life after this manipulation, move on to the next section, and if you have a charging indicator, but the phone doesn't turn on, wait at least 10-15 minutes for charging, then try holding the power button again.
Charging and battery: how to "resuscitate" a discharged smartphone
The most common reason why Xiaomi Redmi Note 4 doesnโt turn on is because the battery is so low that if the battery is running low to 0% and has been in this state for several days, standard charging may not help, and it will require a โforcedโ recharging.
Here's what we need to do:
- Use the original 5V/2A adapter (or similar from a proven manufacturer). Low-current left-handed charging may not start the charging process.
- Connect your phone to charge and leave it for 30 to 60 minutes, even if there is no indication. Sometimes the battery starts to take charge after a while.
- Try the alarm clock method: plug in the charge, then press and hold the power button + the volume button (Power + Volume Up) for 10-15 seconds. This can trigger a forced boot.
- Check the battery for bloating: if the phone case is deformed, the battery needs to be replaced urgently (it is dangerous!).
If the indicator does not catch fire after an hour of charging, the problem may be in the power controller on the motherboard or in the battery itself, in which case it will require disassembling the device.
Use the original 5V/2A| charging
Wait 30 to 60 minutes after connecting |
Try the Power + Vol Up| combination
Check the battery for bloating |
Try to charge from the power bank-->
3 Hard Reset via Recovery Mode
If the phone is responding to charging (the indicator is on), but does not turn on beyond the Xiaomi logo, the problem may be a software failure, in which case a hard reset through Recovery Mode will help.
To enter Recovery:
- Turn off the phone (if it is โhangโ on the logo, hold the power button for 15-20 seconds).
- Press Power + Vol Up at the same time and hold until the Mi logo appears.
- Release the buttons and you will see the Recovery menu (in English or Chinese).
- Use the volume buttons for navigation and the power button to select the Wipe Data (or Clear Data) item.
- Confirm the reset by selecting Yes.
- Once completed, select Reboot to reboot.
If the phone is turned on after resetting, but freezes during the setup stage, the firmware may be damaged, in which case it will need to be reinstalled (more about this in the next section).
What if you canโt get into Recovery?
4.Fastboot flashing: when resetting doesn't help
If the Redmi Note 4 doesn't turn on even after a hard reset, but it reacts to a PC connection (defined as a device in Fastboot), you can try reflashing it manually, USB-cable and specialty software.
You'll need:
- ๐ฅ๏ธ Windows computer (7/10/11).
- ๐ Original. USB-cable (preferably the one that came with the set).
- ๐ Firmware for your model (download from the official Xiaomi website or a trusted source like xiaomifirmware.com).
- ๐ ๏ธ Mi Flash Tool (download at en.miui.com).
Step-by-step:
- Install Fastboot drivers for Xiaomi (usually they are installed automatically when you connect your phone).
- Unpack the archive with firmware in a folder without Cyrillic characters.
- Turn off your phone and press Power + Vol Down to enter Fastboot mode.
- Connect your phone to your PC. The Android Bootloader Interface should appear in the Device Manager.
- Run the Mi Flash Tool, select the firmware folder, and press Refresh. The device must be determined.
- Select Clean All (full clean) and press Flash.
- Wait for the process to be completed (5-10 minutes) and the phone will reboot automatically.
If the firmware was successful, but the phone still does not turn on - the problem is most likely hardware (for example, a malfunction of the motherboard or battery).
๐ก
Before you run your firmware, check the CPU version of your Redmi Note 4 (Snapdragon 625 or Helio X20). Download the firmware strictly for your modification! Installing incompatible firmware can turn your phone into a brick.
5. Hardware malfunctions: when without repairs can not do
If all software methods have been tried, but the Redmi Note 4 still doesn't work, it's probably a hardware breakdown.
| Symptoms. | Possible cause | Decision |
|---|---|---|
| The phone does not respond to charging, the indicator does not burn. | Power controller or Micro-USB connector is defective | Replacement of the controller/connector (solding required) |
| The phone warms up when connected to charging | Short circuit on the board or battery failure | Diagnostics in the service, battery replacement / board |
| The phone turns on, but immediately turns off. | Battery malfunction or power chain damage | Battery replacement, fee check |
| The screen is black, but the phone vibrates. | Damage to the display plume or graphics chip | Replacement of plume or board repair |
Self-repairing hardware malfunctions requires soldering skills and knowledge of circuitry. If you are not confident in your abilities, you should contact the service center.
- ๐ง Battery replacement: 1,500โ2,500 โฝ.
- ๐ Repair of the charging connector: 1000โ2000 โฝ.
- ๐ฑ Replacement of the display module: 3000โ5,000 โฝ.
- ๐ Diagnosis of the motherboard: from 1000 โฝ.
๐ก
If the phone has fallen into water or been hit hard, don't try to turn it on yourself! this can short-circuit and ultimately break the board.
6. Frequent User Mistakes: What Not to Do
When trying to โreanimateโ the Redmi Note 4, many users make mistakes that only make things worse.
โ ๏ธ Warning: Never connect your phone to a charger with a voltage higher 5V (It's from a laptop or an uncertified power bank, and it can burn the power controller!
Top.-5 dangerousness:
- ๐ฅ Using left-handed firmware from dubious sites, which can lead to a bootloader lock or damage to the partition EFS (stored IMEI).
- ๐ ๏ธ Self-disassembly without experience: improper battery extraction or damage to plumes often leads to additional breakdowns.
- ๐ฆ Trying to dry your phone with a hair dryer or rice, which is inefficient and can damage the board, and if you get moisture, you need to turn off the device immediately and take it to the service.
- โก Repeated attempts to turn on when the battery is discharged. This can finally kill the battery.
- ๐ Reset via Fastboot without backup.If the phone has previously been unlocked, it could result in the bootloader being blocked.
If you are not sure about your actions, you should consult a specialist. Repairs will cost less than replacing a burned motherboard.
7.Prevention: How to avoid inclusion problems in the future
To make sure that the Xiaomi Redmi Note 4 lasts longer and doesnโt face power issues, follow these guidelines:
- ๐ Keep your phone charged at 15-20 battery level%.
- ๐ Use quality chargers. Xiaomi's original adapters are designed for safe charging current.
- ๐ฑ Updates often contain fixes for critical errors.
- ๐พ Backup your important data (via Mi Cloud or locally on PC).
- ๐ก๏ธ Avoid mechanical damage. Use a cover and protective glass.
If your phone starts to "glut" (spontaneously shut down, overheat, slowly charge) - do not ignore these signals. Timely diagnosis can prevent serious breakdowns.