How to turn on Xiaomi Redmi Note 4 without a power button

The situation when the Xiaomi Redmi Note 4 smartphone refuses to start due to a physical breakage of the power button is one of the most stressful for the user. Mechanical wear or moisture often leads to the fact that the usual pressing stops calling off by vibration or starting the system. However, this does not always mean that the device has turned into a useless piece of plastic and glass.

In most cases, the hardware of the phone remains fully functional, and the problem lies solely in the contact group or the button plume. There are several proven ways to get around this malfunction and activate the gadget using software interfaces or special combinations of actions with other controls. Below we will discuss in detail the methods that will help you bring the phone back to life.

Before you start taking action, it is important to understand that some methods require pre-preparedness or certain conditions, for example, the on mode debugging over USB. If your Redmi Note 4 was turned off long ago and the battery is dead, the first task will be to supply power to the charge controller, even if the screen does not respond to the connection of the cable.

Using hardware volume buttons to start

The most affordable way to reanimate a device that doesn't have an on button is to use volume control keys. The Snapdragon processor architecture that runs the Redmi Note 4 uses is to enter recovery or boot modes through those keys. If the phone is off but has a battery charge, try slamming the volume button and simultaneously plugging a USB cable connected to a computer or a powerful charger.

This method often allows you to get into the Fastboot menu, where you can try to reboot the system software. The screen should light up, and you will see an image of a rabbit repairing an android, or a text menu in English. The success of the operation depends on how deeply the battery is discharged and whether the basic firmware of the bootloader is preserved.

• 🔌 Connect. USB-cable to your computer, then press the volume button "Down" and insert the plug into the phone.
• 📱 Hold the button for a few seconds until the Mi logo or Fastboot menu appears.
• ⚡ If the phone vibrates but the screen is black, leave it charging in this position on the screen. 15-20 minute.

⚠️ Warning: If the phone is in deep discharge, the screen may not catch fire immediately. Leave the device connected to the computer with the buttons clamped for a long time, sometimes up to an hour, so that the power controller has time to store energy.

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Use the original cable or high-quality analogue with thick wires. Cheap power-bank charging cables may not transmit enough current to start the system bypassing the regular button.

Starting through a computer connection and ADB

For more advanced users who have previously activated debugging mode on the smartphone USB (USB Debugging, opens up the possibility of software enabled. If the device was turned off correctly and saved the charge, connecting to a PC with Android Debug Bridge package installed can initiate a launch. The computer can recognize the connection of the device even when it is turned off if the charge trigger trigger is triggered.

You will need to install Qualcomm drivers or ADB And then you connect the phone to the computer. USB-On the PC port, open the command line and enter a command to check the connected devices. If the system responds, you can send a wake-up signal to the processor. MIUI, But in the old assemblies, the method was quite effective.

The command to be entered in the terminal is as follows:

adb reboot

If the phone reacts to the connection and sees the computer, this command will force the reboot to run bypassing the physical button. However, if the phone is completely off (not asleep, namely turned off), the standard ADB may not see it without first "ping" through charging.

Method of discharging the battery to zero

One of the easiest, though time-consuming ways to turn on the Xiaomi Redmi Note 4 without a button is to wait until the battery is completely depleted if the phone is still showing signs of life (the indicator flashes, warms up). When the battery is completely discharged, the power controller will automatically turn off the device. At this point, when the charger is connected, many smartphone models start on their own in charging mode.

You have to leave the phone connected to the network until it shows the boot logo or the battery image, and this method is based on a hardware interrupt that works when you apply voltage to a completely empty battery. This is a normal situation for the controller, so it ignores the lack of signal from the power button.

Once a logo or charging screen appears, the system may either boot up immediately or require unlocking.If the phone just shows charging animations and goes out, try quickly pressing the volume button combination while the charge process is underway to intercept control.

Using Recovery Mode to Reboot

If you get into the Recovery Mode menu in any way (volume button combination), you get low-level control of the device. In this menu, the volume buttons navigate and the power button selects the item. Because the power button doesn't work, this method requires trickery. Some versions of Recovery allow you to select the menu item with a long press of the volume button, but in MIUI this rarely works.

However, there is a possibility of using external devices. OTG-plug in USB-Keyboard, in some cases Enter key or Keyboard space can emulate the press of the select button (which we do not have), which will confirm the Reboot to system and start Android.

Procedure:

1. Press the volume "Up" and connect the charger to enter Recovery.
2. Connect. USB-keyboard OTG-adapter.
3. Use arrows on the keyboard for navigation (if supported) or volume buttons.
4. Press Enter on the keyboard to confirm the reboot.

⚠️ Warning: Do not try to disassemble your phone and close contacts on the board if you do not have experience with electronics. This can lead to short circuit and final breakage of the motherboard.

Table: Comparison of inclusion methods

To help you choose your Redmi Note 4’s resuscitation strategy, we’ve compiled a method comparison table that will help you assess the risks and resources needed for each method.

Software: Scheduled Power On/Off

If you have managed to temporarily start your phone (for example, the button sometimes works or you used the methods above), your first priority should be to set up automatic on. The MIUI shell has a built-in schedule feature that allows the phone to turn on at a predetermined time even from the off state.

To activate this feature, go to Settings → Battery → Schedule on / off. Set the turn on time 1-2 minutes ahead of the current one. Now, even if the button stops working permanently, the phone can be turned off programmatically, and it will turn on on on on on on a schedule, this will create a cycle that allows you to use the device.

Also worth considering is installing Google Play assistant apps that can emulate clicks, but they require Root rights, which are difficult to obtain on modern versions of MIUI and can disrupt the operation of banking applications.

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Setting up automatic switching on schedule is the only software solution that allows you to fully use a phone with a faulty button in the long run.

Frequently Asked Questions (FAQ)