How to turn on Xiaomi Redmi Note 4 if the power button does not work: all working methods

Xiaomi Redmi Note 4 is one of the brand's most popular smartphones, but even it's not immune to breakdowns. One of the most frustrating things is the power button fails. Without it, the phone becomes a brick: it doesn't respond to charging, it doesn't turn on, and access to data seems impossible. But there are ways to reanimate the device -- and they don't always require dismantling or visiting a service center.

In this article, we will discuss 7 proven methods to turn on the Redmi Note 4 without the power button, from simple (connect to charge) to advanced (using ADB or hardware reset). You will also learn why the button could break, how to prevent re-breaking and what to do if none of the methods worked. All instructions are adapted for the Redmi Note 4 (including modifications with the Snapdragon 625 and Helio X20 processor).

Before you start, check that it may not be the button that is the problem, but a discharged battery or a stuck contact. Try holding your phone on a charge for 15-20 minutes, sometimes enough to start.

1. Energizing through the charger (the “hard reboot” method)

The easiest way is to use a combination of charging and holding keys, which works if the battery is not fully discharged and the power button is jammed or the contact is gone.

Instructions:

• 🔌 Connect the Redmi Note 4 to the original charger (preferably with cable) USB Type-C if you have a Note modification 4X).
• ⏱️ Wait 5-10 minutes – the charging indicator (red or orange LED) should light up).
• 🔄 Hold the Volume Up button for 10-15 seconds. If the phone vibrates or the Mi logo appears, let go.
• 📱 If the screen is black, try holding Volume Up at the same time. + Volume Down (on some firmware, this causes a forced reboot).

This method works in ~30% of cases if the problem is due to a software failure or button freeze. If the charging indicator does not burn, the battery is discharged to zero, and a different approach will be required.

⚠️ Note: Do not use non-original high-current chargers (more than 2A). On a discharged battery, this can cause the power controller to overheat.

2.Use of OTG cable and mouse (to unlock the screen)

If the phone is on, but the screen is locked and the power button is not working, you can unlock it using the OTG-cable USB-This method is suitable for Redmi Note 4 with the function enabled. OTG customized.

What you need:

• 🔌 OTG-Adapter (with Micro-USB or Type-C, depending on the model).
• 🖱️ USB-mouse (wired or wireless with a USB-receiver).
• ⚡ Charger (if the battery is discharged).

Step-by-step:

1. Connect the Redmi Note 4 to charge and wait for the indicator to appear (if it is discharged).
2. Put it in. OTG-Adapter to the phone connector, and connect the mouse to it.
3. In 5-10 seconds, the mouse cursor should appear on the screen.

If the mouse is not working, check:

• 🔋 Charge level (below 5% OTG may not be activated).
• ⚙️ Whether the function is on OTG in settings (path: Settings) → Additionally. → USB OTG).
• 🔌 Correction OTG-Adapter (Try another one).

Charge your phone at least 10%

Checking the efficiency OTG-adapter

Connect the mouse before the cursor appears

Unlock the screen with a swipe or password-->

3 Hard Reset (Hard Reset) via Recovery Mode

If the phone doesn't respond to charging and keys, but you're sure the battery isn't dead, you can try resetting and resetting. This method deletes all data, but often helps to "reanimate" the device.

How to Sign In to Recovery Mode on Redmi Note 4:

1. 🔋 Connect your phone to charge for 10-15 minutes (even if the light doesn’t burn).
2. 🔕 Hold the Volume Up button and Volume Down button at the same time.
3. ⏱️ Without releasing the keys, connect the phone to the charger (or USB-Hold the buttons for another 10-15 seconds.
4. 📱 If you see a Mi logo or a Recovery menu, release the buttons.

On the Recovery menu:

• 🔄 Select Wipe Data (manage volume buttons, confirm power button, but if it doesn’t work, use the touch screen or connected mouse via the power button). OTG).
• 🔄 Then select Reboot System Now.

If the reset is successful, the phone will restart. If it's not, move on to the next method.

⚠️ Note: Some Redmi Note 4 firmware (e.g, MIUI 10 and older) Recovery may require you to enter your Mi Account password. If you don't remember it, this method won't work.

4. Connect to PC via Fastboot and ADB

If the phone is determined by the computer but does not turn on, you can try to run it through Fastboot or ADB mode. This method requires installing drivers and special utilities.

What you need:

• 💻 Windows computer 7/10/11 or macOS/Linux.
• 🔌 Cable USB Type-C/Micro-USB (original).
• 🛠️ Used by Mi Flash Tool, ADB and Fastboot.

Instructions for Fastboot:

1. Download and install the Mi Flash Tool.
2. Connect the Redmi Note 4 to the PC.
3. Hold the Volume Down button and connect the cable to your phone. Hold the 10-15 second button.
4. If the drivers are installed correctly, the Android Bootloader Interface will appear in Device Manager.
5. Open the command line (Win + R → cmd) and type:

fastboot devices

If the phone is determined (its serial number will appear), enter:

fastboot reboot

For ADB (if the phone is on but the screen is locked):

1. Turn on USB debugging (if the phone has been turned on before).
2. Connect the phone to the PC and type in the command line:

adb devices


adb shell input keyevent 26

The keyevent 26 command emulates the pressing of the power button.

1. Install drivers manually through Device Manager (select Android Bootloader Interface).

2. Use another USB-port (preferably) USB 2.0).

3. disable the antivirus (it can block) ADB).-->

5. “Live” charging from another phone (the “donor battery” method)

If the Redmi Note 4 battery is empty and the power button is not working, you can try to apply current from another phone, which is suitable for emergencies when there is no original charger.

What you need:

• 📱 Another smartphone with Micro-USB/Type-C (Like Redmi. 4X, Samsung Galaxy, etc.).
• 🔌 Cable USB OTG (or Micro-USB adapter → Micro-USB).
• 🔋 Charged battery in the donor phone (minimum 50%).

Instructions:

1. Connect your donor phone to the Redmi Note 4 OTG-cable).
2. On the donor phone, turn on File Transfer (MTP) or Charge another device (if you have such an option).
3. Wait 10-20 minutes – the charging indicator on the Redmi Note 4 should light up.
4. Try turning the phone on with Volume Up hold or key combination.

This method doesn’t work on all firmware, as Xiaomi can block reverse charging, but it helps wake up a fully discharged battery in 40 percent of cases.

⚠️ Warning: Do not use this method for longer than 30 minutes - there is a risk of overheating the power controller on the donor phone.

6. disassembling the phone and closing the contacts of the button

If software doesn't work, you have to do a mechanical thing, which is to take the phone apart and check the power button, and this is a very neat way to turn on the device without changing the parts.

What you need:

• ⚒️ Plastic blade or mediator.
• 🔧 Cross screwdriver (size) PH00).
• 🧲 Magnetic substrate (so as not to lose the screws).
• 🔍 Lupa (optional, to inspect contacts).

Step-by-step:

1. 🔋 Turn off your phone (if it reacts in any way).
2. ⚒️ Carefully tuck the back cover of the Redmi Note 4 with a plastic blade. Start with the corners where the latches are located.
3. 🔧 Unscrew all the screws (about 10-12 pieces) and remove the metal cover.
4. 👀 Find a flexible power button plume (located next to the battery, under a metal plate).
5. 🔍 Look at the button contacts: If they're oxidized, wipe with alcohol. If the button moves, press it back or tape it. If the plume is torn, you'll need a replacement.

pinch

On the Redmi Note 4, the power button contacts are placed on a flexible plume next to the speaker connector, which can be closed with tweezers or a needle to simulate a press.

If the phone turned on after disassembly, but the button still does not work, it will have to be replaced. The cost of repair in the service is from 500 to 1500 rubles (depending on the region).

Do not use metal tools to slap the cover (it can damage the plumes).

Wheels of different lengths – remember which one from.

— The battery can be glued - do not pull it by force, it is better to warm it with a hair dryer (60)°C).-->

7. Alternative methods: service centers and donor spare parts

If none of these methods work, radical measures remain:

• 🔧 The average cost of repairing the power button on the Redmi Note 4 is 800-2000 rubles. In some workshops, they offer a temporary solution - solder the wires to the button contacts and bring them out (to turn on the phone manually»).
• 📦 Replace the plume yourself.Power button plume for the Redmi Note 4 can be purchased on AliExpress (~300-500 rubles) or in local radio parts stores.
• 🔄 Using a phone without a power button if the phone is switched on via charging or ADB, You can configure automatic power on when connected to the power (root or special software is required).

Before you carry your phone for repair, check:

• 🔍 Warranty (if the phone is officially purchased, repairs can be free of charge).
• 💰 Cost of repair (sometimes cheaper to buy a used Redmi Note 4 in good condition).
• 📱 Appropriate (if the phone is older than 5 years, it may be worth considering an upgrade).

FAQ: Frequent questions about turning on Redmi Note 4 without power button