How to turn on the phone if the power button is broken. How to turn on a switched off phone without a power button
Your question:
How to turn on your phone without a button?
Master's answer:
Button pusher designed to turn on mobile phone, falls out when dropped or lost during repair. Sometimes the button itself doesn't work. As soon as the battery runs out, the phone turns off. To turn it on, you have to repair the button or use a surrogate pusher.
Let's see if there is a slightly convex metal plate or a flat plastic button right under the hole, in place of the pusher. Take a small screwdriver and press the plate or button without much effort. If you press too hard, the button itself may fail. Keep it pressed for a few seconds until the phone turns on.
If the phone does not turn on when the button is pressed (regardless of the presence or absence of a pusher), disconnect the charger from the device, remove the battery, SIM card and memory card. We disassemble the phone using a set of screwdrivers specially designed for this purpose. Regular slotted or Phillips screwdrivers will irreversibly strip the screw slots and subsequently disassemble them will be difficult. If you have never disassembled mobile phones before, especially folding or sliding designs, we perform disassembly for the first time in the presence of an experienced technician. The screws that appear as a result of disassembly must be placed in a jar or attached to a magnet.
When we get to the power button, carefully unsolder it. We buy another one of the same size. We solder it into place quickly so that the overheated plastic parts of such buttons do not melt. We assemble the phone in the reverse order, installing the SIM card, memory card and battery. Let's check if it turns on.
Not finding a suitable button, we solder two thin insulated wires to the corresponding contacts and bring them out. To turn on the phone, it takes a second to close these conductors, and then open them again. We do this with the charger disconnected, because although there is a small probability of leakage in it, it still exists.
When combining the power button on a phone and the end call button on a folding or sliding device, the cause of the malfunction is probably not in the button itself, but in the cable. To replace it, we disassemble the mobile phone in the same sequence as for replacement separate button. The price of the cable itself is directly dependent on its design: it is much higher when the speaker or front camera is connected into a single whole.
Dropping your phone from a height, getting liquid on it, and other unpleasant accidents usually lead to damage to the device.
Most often, of course, the screen is damaged, but sometimes other damage is possible. For example, the power button may fail. It would seem like a small thing, but try to turn on the phone without using this button, or at least unlock its screen. What should you do - go to the store for a new smartphone? It's not all bad - you can try to turn on the device without pressing the start button.
Our actions will depend on the state of the phone at the current moment - whether it remained on or turned off for some reason.
If the phone is turned off
When dropped, it often falls off the phone back cover and the battery drops out, after which it has to be turned on again.
If you need to start the system without using the power button, you can use one of the options described below.
Connect for charging
Some models have a function automatic switching on when connected to charger. Even if our phone does not belong to this lucky category, we still turn it on for charging and hold down the side button, which controls the sound.
Sometimes this is enough to start the phone booting.
Connecting the phone to the computer
This method only works if the battery has at least 5% charge left, and not with all models.
We connect the phone to the computer via USB cord- this might work to automatically start the Android download.
USB Debugging Mode
If your phone was in USB mode debugging, then after connecting to desktop computer or laptop, you can try to start the download using the computer's command line. 
After this, taking advantage of the happy occasion, you need to immediately install the ADB utility on your computer, i.e. Android Debug Bridge, with which you can control your phone via a computer and register it in command line her windows adb reboot. The phone screen will be unlocked, and you can change the settings, adapting the device to work without a power button.
If the phone doesn't turn off
You are very lucky if the phone remains on when the start button is damaged.
In this case, you are faced with a completely solvable task of removing the screen lock. You can do this in several ways:
Press the button "Nome";
Double-tap on the screen (if the phone settings allow for such unlocking);
Call the phone from another number and go to settings during the “conversation”;
If the camera is controlled by a physical camera and not virtual button, then launch the camera, and then exit through it to the main menu.
Once the screen is unlocked, you should take care to change the unlocking method in the future.
Applications to quickly unlock the screen
So that in the future you can use the phone without resorting to exotic ways launcher, you can install one of the quick screen unlock applications on it.
- Gravity Screen - On/Off uses a gyro sensor to turn on and unlock the screen. While the phone is in a stable, stationary state, its screen is turned off and locked. But as soon as you pick it up, the lock is removed and the screen turns on. The application allows you to set the most convenient inclusion parameters. 
- Power button to Volume Button transfers the functions of the power button to the volume key.
- Shake Screen On Off – useful application, which turns on and unlocks the screen, you just need to pick up the phone and shake it lightly. Likewise, the screen turns off after use.
Let you know that you can use a smartphone with a faulty power button without special problems use it simply by assigning its functions to one of the volume control buttons.
But at the same time, we also mentioned that we will need to ensure that the smartphone does not turn off on its own due to its battery being discharged, since it will no longer be possible to turn it on this way. But what to do if this does happen?
Today we want to tell you about how you can turn on your smartphone with broken button nutrition.
There are several options for solving this problem, depending on the type of malfunction and the manufacturer of your device.
Simulating a button press using auxiliary tools
If the power button is simply missing: it has crumbled or fallen out as a result of mechanical damage, then you can try to turn on the smartphone by inserting a thin and not too sharp object into the hole for the button.
A match, a toothpick with a blunt end, or any other object of a similar shape, but not a metal object, may be suitable for these purposes.
If this method does not help, then it’s time to move on to more complex methods.
Connect your smartphone to your computer
This method works for many Android smartphones and tablets.
Connect your device with via USB cable to your computer or laptop. If its battery is completely discharged, wait 15-20 minutes until it recharges a little. As soon as the battery charge reaches the level sufficient for independent work It will most likely turn on by itself.
Turn on the smartphone by pressing other buttons
Turn on using the volume control buttons and the mechanical Home button
If your smartphone's battery is charged and it does not turn on when connected to a computer, you can try turning it on by pressing the following key combinations:
Volume buttons: Press both volume buttons at once and without releasing them, connect your phone to the computer using USB cable. After you have connected your smartphone, press in addition to these two buttons the “Home” button. Without releasing the buttons, wait for a while.
As soon as some message appears on the screen, release all buttons. If the phone turns on, but it does not start further than the text menu, do not be alarmed: using the volume buttons, select the text “Restart” or “Reboot” or “Turn on” in it and press the “Home” button to reboot and turn on the smartphone.
Volume key
Sometimes a smartphone or tablet can only be turned on using the volume down button.
To do this, press it and, without releasing it, connect it to your computer using a USB cable. Without releasing the button after you have connected the smartphone, wait until “signs of life” appear on its screen. If these symptoms are limited to a text menu, proceed as in the previous paragraph.
How to turn on your smartphone or samsung tablet with a faulty power button
If your device is manufactured by Samsung, proceed as in the previous two cases, only before connecting the device to the computer, press on it and hold down the volume down button and the Home button at the same time (on new Samsung smartphones Instead of the Home button, press the Bixby assistant button).
How to turn on your smartphone via ADB
If you were unable to turn on your smartphone by pressing various combinations of buttons, you should try to do it with using ADB, having previously loaded it into bootloader mode.
Download the necessary for this ADB programs and Fastboot you can follow the following links:
To download Android device into bootloader mode do the following:
Press the volume up button (on some devices, the volume down button) and connect your smartphone to the computer. As soon as the image appears on the screen, release the button.
DevicesNexusAndPixel: Press the volume down button and connect your smartphone or tablet to the computer. As soon as the image appears on the screen, release the button.
DevicesLG: Press the volume down button and connect your smartphone or tablet to the computer. As soon as the LG logo appears on the screen, release it. If this method does not work, after the image appears on the screen, release the button for a second and press it again.
DevicesHTC: Press the volume down button and connect your smartphone or tablet to the computer without releasing it.
DevicesMotorola: Press the volume down button and connect your smartphone or tablet to the computer without releasing the button.
After your smartphone boots into bootloader mode, on your computer using Explorer, go to the folder in which you downloaded the ADB and Fastboot programs, and then hold down the left Shift key on the keyboard and right-click on free space and select "Open Command Window":
In the command window that opens, enter the following command:
fastboot continue
Your smartphone will need to reboot and enter the operating system.
Articles and Lifehacks
Every owner of a mobile phone knows what needs to be done to make it work, and how to turn on the phone if the power button does not work? If, for example, skill does not seem to you the limit of user achievements, and you also have the necessary technical skills, turning on the device in this situation is quite possible.
The first thing to do is find out the reason why it doesn't work. There may be several of them:
Your phone is dead
it's just disabled
the on/off button is broken.
If the power button on Nokia does not work, is it possible to turn on the phone at all and what will be needed for this?
The power button is usually located at the top of the case. It may simply stop working, fly out, or be pushed inward. In any of these cases, she will “refuse” to perform her functions. Can I solve the problem myself?
You may need:
thin screwdrivers;
soldering iron with a fine tip;
tweezers, needle;
soldering flux;
non-insulated thin wires;
magnifying glass;
lighting device.
Tips for action:
1. If the button is stuck, it must be removed using tweezers or some other sharp object. Using a lighting device, look inside the case and find 2 pairs of contacts there that are responsible for the proper operation of the button. Carefully, without damaging the adjacent contacts, close them one from each pair. After this, the phone can no longer be turned off, and it cannot be brought to complete discharge battery.
2. If you cannot remove the button, then use a thin screwdriver to open the phone case, lift the panel, and shake it out. Using a soldering iron, solder the contacts to the button without overheating them.
3. The lost button will be replaced by 2 wires 10-15mm long. They need to be soldered to a pair of side contacts on the board and brought out through the socket where the button was attached to the surface of the case. Close the panel and close the contacts.
Having completed one of listed actions, you solve the problem of how to turn on the phone if the power button does not work. Difficult? Well, it’s difficult for some, but for others, finding a couple of contacts and soldering them. If you are one of the latter, contact the service.
If the power button on your iPhone does not work, how to fix the problem yourself and turn on the phone
In this case, it is better to contact service center. If for some reason this is not possible, then if you trust the recommendations, all you need to do is replace the cable that fits the button. In addition to the fact that the part must be individual, it also needs to be skillfully connected. Otherwise, you will have to repair both the button and other elements.
You can achieve a positive result this way:
Find the item in your phone settings that opens universal access to other buttons;
open mode Assistive touch and connect the utility;
go to the menu where the power button is duplicated and display it on the screen;
by holding your finger on the locking button, you can turn off the device;
to turn it on, you need to go to the menu through the computer or connect to the power supply; While charging, the smartphone will turn on on its own.
In any case, when the opportunity arises, the phone will need to be shown to specialists.
All gadgets break down sooner or later, and smartphones are no exception. In fact, phones can be exceptionally fragile - sometimes just dropping them is enough to render them useless or severely damaged. But even if the phone has never been dropped, there are still a lot of things that can happen to it. One of them is when at one point the screen lock button stops functioning, and then you are simply unable to lock or unlock it.
Obviously, things aren't so bad with phones that have physical button return, such as is present in the vast majority of phones on Android based. The Home key can also be used to wake up the phone. Phones that can be unlocked double click on the screen are beautiful too. But phones that lack the latter feature and have capacitive or screen navigation buttons, become as functional as a potato once their lock button stops working. However, there are a few things you can do to improve the situation.
Step 1: Unlock your phone
There are several ways to unlock your phone without relying on its power button. You need to have someone call you - in most cases, this will turn on the screen and give you control of the phone. Once the phone is working, you can proceed to the second step. Alternative option: Connect your phone to the charger. This will turn on the screen and allow you to access the device. If your phone has a physical camera button, hold it down. This should launch your camera app, which you can simply close and use other phone functions.
NOTE: If the lock button is stuck, as if it is constantly being pressed, shake the phone well, but do not hit it against anything. If you're lucky, the button will come off and work normally. Avoid complete shutdown phone because then you won't be able to turn it on again without a working power button.
Now that your phone is working, you can replace the screen lock button with one of the dedicated apps.
Step 2: Select an application
There are a number of applications that will allow you to reassign the lock function from the faulty button. You can easily select any application that best suits your needs. Here are the most popular and effective of them:
1) Power Button to Volume Button.
This application remaps the lock button to the volume button. It is compatible with the vast majority of Android phones and does not require root rights. The program is absolutely free, so you can always use it.
2) Gravity Unlock.
This application is also a great help if the screen lock button is faulty. It automatically detects your hand position and unlocks the phone when you hold it as if you want to use it. The program works fine with most phones, although some models may have problems.
3) Shake Screen On Off.
This application unlocks your phone when you shake it well. The program automatically analyzes the situation, preventing accidental and unwanted unlocks, when the phone might get shaken in your bag, for example.
Step 3: Find a permanent solution
All of the above, although effective in most cases, is still a temporary solution and not a permanent one. It will be better if you contact a service center if your phone's screen lock button is faulty.