A situation where the physical Power button on a smartphone ceases to respond to clicks can take any Xiaomi or Redmi owner by surprise.The device can freeze, the screen will go out, and the usual way of turning on will be unavailable. At this point, you should not panic, as the architecture of Android and shell. MIUI There are several alternative ways to start the system.
Modern gadgets have many hidden functions and diagnostic modes that allow you to bypass hardware limitations. You do not need to carry your phone to the service center immediately if the problem is only inability to activate the screen.
Before we get to the tricky part, we need to assess the extent of the damage, and if the button fails or is physically broken, the methods may be different than those used in software freezes, and the following are the solutions that are relevant to most models of the Mi, Poco and Redmi Note line.
Using Recovery Mode to Start the System
One of the most reliable ways to turn on a device when the power button is down is to log into Recovery Mode.This system partition boots separately from the main operating system and often responds to other keyboard or connection combinations.
Once you enter the recovery menu, you will see a list of options, you will need to select Reboot or Reboot to System, and the navigation in this menu is done with volume buttons, and the choice is made by a short press (if it works) or, in some cases, by touching the screen if the touchscreen is functioning in this mode.
⚠️ Warning: Do not choose Wipe Data or Factory Reset if you want to save your photos, contacts and apps.
If the touchscreen in the Recovery does not work, and the power button is completely dead, you can try to connect the phone to the computer through the phone. USB-Sometimes the system recognizes the connection and allows you to select the boot mode through special utilities, although this is more difficult to do with regular means. In the Recovery menu, navigation can be limited, so proceed carefully.
What if the phone is vibrating but the screen is black?
If you're connecting to charge the device vibrates, but the screen doesn't light up, maybe the problem is the display plume or the screen itself, not the button. Try to light up the screen with a flashlight at an angle -- if you can see barely visible images, then the backlight is out of order.> The method of connecting to a computer and ADB-The most professional and effective method is the use of debugging by USB (ADB). This method requires that the smartphone previously was enabled function “Debugging by” USB» If this condition is met, you can control the device from your computer even if the power button does not work. ADB Once you connect your phone to your computer, open the command line or terminal in the tool folder. Enter the command to check the connection: adb devices. If the device is displayed in the list, then the connection is established. adb reboot This command will send a signal to restart the system. There are other variations, for example, adb reboot bootloader for logging into the bootloader or adb reboot recovery. This is ideal for those who know how to work with the command line and want to avoid accidental pressing. ☑️ Checking readiness ADBDebugging is on. USBDrivers installed ADBConnected serviceable cable Computer sees the device: 0 / 4 It is important to note that if the phone is completely off and does not respond to charging, the method is ADB It may not work without first waking up the device in other ways, but when the screen is getting stuck or the software crashes, this solution is often the only solution. MIUI It is famous for its convenient functions that can help at a critical moment. One of them is Double tapping to turn on the screen. If this option was activated in advance, you can wake the phone by tapping on the center of the screen. To find this setting, go to Settings → Additional Features → Double tapping. Another tricky way that few people know about is using an alarm clock. If you set the alarm clock one minute ahead and wait for the signal, the smartphone will turn on and start the Clock app. You can already go to the menu from the running application or do other things. This works even on a completely off (in sleep mode) and use the phone only if you need to switch on the battery, but you don't use it in full power. Some users also note the effectiveness of connecting the headset with a response button. If you connect wired headphones, sometimes you can answer an incoming call or start a voice assistant, which also activates the screen. Using the Fastboot menu and diagnostic modes Fastboot Mode (or Bootloader) is a low-level interface designed to firmware the device. On many Xiaomi models, you can enter it by clamping down the volume button when you connect the cable. Unlike Recovery, here the interface is minimalistic but functional. Once in Fastboot, you can try to reboot, if you can switch to the same menu, you can often reboot, you can switch to the corresponding menu, you can use it to the corresponding to the "click it" (al from this menu). There is also an engineering menu that can be accessed through the code ##6484## typed in the Phone app. Although this menu serves to test components, the mere fact of running the app can "wake up" the system if it is hung on a black screen. Download mode Combination / Action For which Recovery Volume + and Reset Cable, Update, Fastboot Volume - and Firmware Cable, Low-level Access Safe Off Button Mode (Ec.) Diagnosticating Third-Party Apps requires Google to verify the device's actions before selecting the wrong handheld option, read the manual manual manual manually. ═══ BLOCK: TRUMP ═══ ═══ THE END OF THE BLOCK ═══ Third-party apps and automation If your phone is still powered on but the button is out of order, it makes sense to install power management apps. Software like Power Button to Volume Button allows you to reassign functions. For example, pressing the volume button for a long time will mimic pressing Power, and there are utilities for automatic reboot on a schedule, so you can set your phone to turn off and on every morning at a certain time. This will help maintain the system and clean the RAM without your participation. ⚠️ Note: Apps requiring root power management rights can disrupt security and make it impossible to use banking applications. It can create a scenario: "If the battery is below 5% and the time is 23:00, turn it off." Or vice versa, create a trigger to turn on certain functions. This gives flexibility that is not available in standard settings. Hardware solutions and temporary measures When software methods are exhausted, you have to resort to physical action. If the button just falls off, you can carefully (without excessive effort) try to press it with a blunt object or remove the back cover (if it is removable) and press directly on the contact of the plume. In some cases, the "discharge to zero" method helps. Leave the phone with a physical effect. If the button just drops on the grid, you can, some time to start the battery, you can show the battery on the battery, after a full charge, and then you can start the battery charge it will be able to charge the battery. Keep in mind wireless charging, if supported. Putting your phone on the base can activate a lock screen that sometimes has widgets or face unlocks available, allowing you to get in. Prevention and frequent questions To avoid similar situations in the future, monitor the status of the buttons. Regularly clean them of dust and dirt using compressed air or soft brush. Avoid using the phone in dusty rooms or without a protective case that can press on keys. It is also recommended to periodically back up data if you have a final problem with the phone, if you will not be able to save the data in the cloud, if you will be better, if you will have to save the data from the service. Can you turn on Xiaomi if the power button is completely detached? Yes, it is possible with a computer connection (ADB), using Recovery mode via volume buttons or alarm function. However, if the phone has been completely turned off and discharged, turning it on without a physical button will be extremely difficult without opening the case and closing the contacts on the board. Is it safe to constantly use Recovery mode to turn on? Using Recovery mode to reboot is safe for data if you choose the Reboot system now. However, frequent use of this method is inconvenient and is not a regular scenario without opening the device, this solution is a deep charge to the battery charge, or the battery repair. You can also damage the power controller on the board. Try leaving the phone on charge for 30-60 minutes. Will my data reset by logging into Fastboot or Recovery? By itself, entering these modes doesn't erase data. Data is only deleted when you select specific menu items, such as Wipe Data or Factory Reset. Be careful when navigating. Can you reassign the volume button to turn on the screen? Yes, using third-party apps from Google Play, such as "Volume Button Screen On" or through your Accessibility settings, if your version of MIUI allows it.