DIY phone power button repair

In detail: do-it-yourself phone power button repair from a real wizard for the site my.housecope.com.

If the phone is turned off and the power button does not work, the question arises as to how to turn on the phone without the power button. Let's consider several ways to accomplish this task.

It's very simple - if the button is broken and the device is turned off, connect it to the charger. While doing this, hold down the volume button (one of the two).

This is not the only option. In some cases, the Home key or any other mechanical button on the body of the device also works.

Try several options. And if all else fails, use the following method.

Advice: Also try to just hold down the other buttons in turn. Perhaps, the device can be turned on not only by the power key. Also, in some gadgets, the function of turning on by shaking is available. If this is the case, just shake the machine.

If the device is charged, connect it to your computer via USB. The Android operating system provides for a certain reaction to this action. The phone should turn on and work.

USB can also be used in a different way.

There is a special Android-SDK package that helps to perform a variety of "hacking" actions with phones. To put it simply, it is a set of debugging programs. Their use takes place through a computer.

After you have downloaded this toolkit, do the following:

Unpack the archive (it is usually distributed in ZIP format).
There will be an ADB file, place it in the root of your system drive.
Connect your smartphone to your computer using a cable.
Start the console. The easiest way to do this is to enter the query "cmd" in the "Start" menu and run the found item.
In the console, enter the command "adb reboot" and press "Enter".

Video (click to play).

Rice. # 1. Launching the console and entering the "adb reboot" commands

After that, the phone will reboot and, accordingly, turn on.

Attention! This method is available only if the debug mode is running on the mobile device.

Actually, nothing else can be done. If all else fails, take the device for repair and ask to replace the button or solve the problem in another way.

Absolutely any smartphone is not immune to unexpected breakdowns. And we are not talking about freezes, lags and glitches of the operating system, we are talking about random mechanical influences that can lead to unwanted consequences. There are often cases when a dropped phone shattered to smithereens, but more often the device simply receives a new defect that must be eliminated. Sometimes the power button just breaks on the device. Such cases do not require replacing the device, since the consequences can be eliminated on our own. But how to fix the power button on the phone, because the phone was not badly damaged, but now it is impossible to use it.

If you “managed” to drop your gadget so that the entire blow fell only on the power button, then it's not so bad. But if at that moment the phone was turned off, then several more questions may arise. How to turn on the phone with a faulty power button? This article will help answer all these and other questions.

Basically, damage to the device is caused by falls from a perceptible height or the ingress of water and other liquids onto the surface of the smartphone.

Important! If the reason was precisely the ingress of liquid, it will not be possible to do without special measures, even if the phone seems to be working properly at the moment.Why? Look for the answer and solutions to the problem in our separate article "Repair of drowned phones".

Usually the phone's display gets the most damage, but other damage cannot be ruled out. For example, the power control button may break. It seems to be a "trifle", but you will hardly be able to turn on or unlock a device with such a defect.

Have to run to buy a new phone? Far from it! Try to “start” the device, avoiding pressing the affected button. The startup methods and subsequent actions will only depend on whether the phone was turned on or not. Let's try to figure out how to fix the power button on your phone.

The design of the cases of some devices can lead to shutdown during a fall - the battery simply falls out, knocking out the cover. But the need to turn on the phone will not disappear anywhere. And how to do this if the button is inoperative? If you are going to turn on the device without using it, then you should resort to one of the methods, which will be described below.

Most device models are equipped with an automatic turn-on function when the charger is connected, and if your smartphone cannot be counted among such models, then it is still worth installing the charger wire. All that remains is to hold down the volume control button, which is usually located on the side panel of the device. Such measures very often help bring the device “to its senses”.

This method is relevant only if the battery charge is at least five percent:

We take a USB cable in our hands and connect it to the phone.
We connect the other end of the wire to the computer and wait for the operating system to load on the mobile device.

Important! This method is not applicable to all gadgets.

If the USB debugging function was enabled on the phone before disconnecting, then you need to establish a connection with a personal computer or laptop, and try to activate the phone using the computer command line.

Important! At the same time, it would not hurt to install the following software on your computer - Android Debug Bridge (ADB). With this utility, you can control your mobile phone directly through the command line of your computer.

Read also: DIY repair level

To do this, you need to do the following:

We open this software.
Run the command line in it and write “adb reboot”.
The phone screen should be unlocked, which gives access to the functions of changing the method of unlocking the smartphone without using the power button.

Important! Once you understand such an important button, pay attention to the appearance of your gadget. If it contains all the signs of a well-worn device, be sure to use our instructions and useful tips from the following articles:

Still not sure how to fix the power button on your phone? You may need information about other methods of inclusion, which we will get acquainted with later.

If this is your case, then you are very lucky. In order to unlock the phone screen, you can try the following steps:

Try pressing the “Home” button.
Some devices are equipped with a double tap unlock function on the display. Perhaps your phone is one of those.
Call a phone number and go to the options right during a call.
Some models use a button on the side panel to turn on the camera. If your device is equipped with one, then click on it and go to the parameters through the main menu.

Important! If you succeed in unlocking the device, then do not forget to take care of choosing a different method of activating the screen through the standard settings of your model.

You can use third-party software to avoid difficult ways to start your phone. Just install one of the following programs on your device:

Gravity Screen - On / off.This software will help you unlock the display using the built-in gyro sensor. If the phone is stably stationary, the screen will always be off and locked. As soon as you pick it up, the screen will immediately light up.

Important! Application parameterization allows you to choose the most convenient settings for the user's needs.

Power button to Volume Button. This product will help you reassign the functions of the keys on your device. You can set the volume rocker as the power and lock key.
Shake Screen On / Off. It is a very useful application that allows you to activate Android with light shakes. In the same way, the screen of the gadget can be turned off if you no longer need to use it.

But still, how to fix a push-button telephone? We suggest you familiarize yourself with another interesting way.

With switching off and on, we figured out thoroughly. Now let's get down to the repair itself. To do this, follow the instructions below:

We take a screwdriver in our hands and unscrew the screws that hold the phone case.
We remove the case and try to understand the exact cause of the breakdown of the broken part.
Remove the off / on button with a soldering iron.
Next, you need to acquire an alternative or identical part. Popular brands of phones do not exactly suffer from a shortage of parts in the tech market.
Using a soldering iron, attach all the “legs” of the component.
Since you have already disassembled your device, also use our instructions at this point to clean the headphone jack, device speaker and microphone at the same time.
We assemble the device and test it for performance.

Important! Try to be careful when carrying out all of the above. If you use extra force, you risk causing further damage to your mobile phone.

The third method is suitable for advanced users who understand drivers and debugging programs. To turn on your smartphone without a power button like a hacker, you need to install the Android-SDK on your PC. This is a development kit that includes the ADB tool, an Android debug bridge that allows you to control your mobile device from a console on a PC.

To turn on your smartphone via ADB, follow these steps:

Enable USB debugging mode on your smartphone. To do this, go to the developers menu. How to start this menu, you can read in the article 10 most useful hidden functions of Android;
Download and unzip the Android-SDK zip archive;
Install the ADB item to the root of your main drive, for example, c: adb;
Connect your smartphone to PC via USB cable;
In the command console, write adb reboot;
Press Enter;

If everything is done correctly, the smartphone will restart and will work normally.

Option 2: How to turn on the phone without the Android power button in sleep mode

To wake up a sleeping smartphone without a power button, you can use one of four available methods:

Connect your smartphone to the charger. The gadget will automatically wake up and launch the unlock screen;
If your smartphone supports the function of activation through the screen, tap twice on the display;
Press the mechanical Home button;
Call from another phone to your number;
Shake the phone if a similar power-on function is available;

Option 3: Controlling a smartphone with a broken power button using apps

If the power button on the smartphone does not break immediately, but starts to junk from time to time, you can insure yourself by installing special applications on your smartphone. With the help of such utilities, control of the gadget is configured without the power button.

A very lightweight and easy-to-use application that will replace the power button on a smartphone. After installation, configure the main functions of the program:

The device is in your pocket. When you put your smartphone in your pocket, the application will detect the angle you set and turn off the screen;
The device is in any position. The screen turns off in any position of the smartphone;
The device is on the table. The application turns off the screen by detecting the angle when the smartphone is placed on a horizontal surface;
Screen control by proximity sensor;

Here you can adjust the sensitivity of the sensors to exclude accidental triggering and set the delay time when the smartphone cannot be woken up by picking it up.

Power Button to Volume Button

An application that will configure the inclusion of a smartphone on the volume control buttons.There are only two active items in the utility menu: Boot and Screen Off. Check the box next to Boot, after which you can turn on and off the smartphone using the volume rocker.

Similar programs, which can be downloaded for free on Google Play, set up turning the smartphone on and off by double-tapping the screen or by shaking.

For detailed video instructions on how you can turn on the phone without the power button, see this video:

Please note that only those who have the appropriate technical training should disassemble the smartphone. Otherwise, any mechanical intervention can seriously damage your gadget.We tested all the above methods of turning on the phone without the power button on a Fly Cirrus 7 smartphone. We chose this gadget according to several criteria:

Availability and reliability. Fly Cirrus 7 is an inexpensive smartphone with efficient technical stuffing;

The presence of the LTE 4G module. Access to high-speed Internet allowed us to easily download and study numerous instructions for turning on the phone without the power button;

5.2-inch display on an IPS-matrix with a bright and vivid picture made it possible to interact with smartphone settings, applications and text without unnecessary stress;

4-core processor with a frequency of 1.25 GHz. We noted the stable operation of the smartphone in multitasking mode and the smooth functioning of the interface of the Android 6.0 operating system;

A capacious 2600 mAh battery made it possible to carry out numerous tests of the smartphone in several modes without connecting to a charger;

It is worth noting that the British brand Fly has been a reliable manufacturer of high-quality smartphones for 14 years now, in which a productive filling is combined with a verified design and a pleasant price. Choosing a smartphone from one or another Fly series, you unconditionally get a multifunctional gadget with a powerful processor, a capacious battery, a good camera and an excellent display.Do you want to learn how to properly charge your mobile gadget so that it lasts as long as possible? Read about it in the article How to properly charge your Android smartphone. Image - DIY phone power button repair

Using the Samsung U600 cell phone as an example, we will consider the most common breakdowns of these phone models. After a while, most of the phones of this model showed the following defect: the cable connecting the two parts of the slider was frayed. As a result, the image on the screen disappeared or just ripples appeared on the screen. Another defect: problems with touch buttons.

After some time, the camera stopped turning on and it became impossible to view photos in large size. In this state, he had to arrive for three years, until finally my hands reached him.

To repair my U600 phone I needed:

Screwdriver Set,
sharp knife
tweezers,
flex cable Samsung U600 connecting two parts of the phone.

In order not to loose the bolts, you can use a magnet. In my case, I only managed to buy a loop, although in a worse scenario I would have to buy a loop with touch buttons as well, but I managed to bring it back to life.

Recharge the battery before you start repairing your cell phone. After you have recharged the battery, remove the back cover and take out the battery.

Do not forget about one more important point when repairing phones, which is often talked about by masters, this is static electricity. They say that because of it, the failure of some elements of the phone is possible. And in order not to buy a static bracelet, we will recall the physics course and before disassembling the phone it is better to do a wet cleaning in the room, that is, to wash the floors and wipe the table on which the repair will be carried out with a damp cloth. At the same time, there should be no visible traces of water on the table. Such a procedure should be carried out after a while during the entire repair and you can not worry about static electricity.

We take the knife further and carefully pry off the cover under which the bolt is hidden. The master who repaired this phone for the first time unfortunately damaged the cover.
And unscrew the bolt.

Then we unscrew 4 more bolts holding the phone case. And taking hold of the part of the body in the area of the flashlight, remove it.

The next step is to remove another cover from the end of the case, also prying it off with a knife.

And we unscrew the two bolts located at the edges and remove this part of the phone case.

Now we unscrew the six bolts that hold the case with the keyboard.

Disconnect the cable going to the keyboard and microphone by lifting the clamp that holds it and using tweezers to remove it from the connector on both sides.

Now we carefully take out the board and turn it over, where we can see the ill-fated loop due to which the phone's display did not work. With a knife, slowly from the side of the board, we pry the cable over the case with connectors. In no case should you remove it by prying it by the cable itself, since the case with contacts can come off the cable, and if the cable was new, it will become unusable. Having disconnected the ribbon cable, you can safely remove the board and the part of the case on which it was installed by pulling the ribbon cable through the hole.

Next, unscrew two more bolts on the other part of the phone case and move the metal part of the case as shown in the figure.

Now we remove the cable from the connector marked with number 2.

This disassembly of the phone Samsung U600 has finished the next step of the phone repair.

The assembly of the phone is carried out in reverse order, with minor nuances. Install a new ribbon cable in connector 2 and fix it with a latch. Now we take the part of the phone case, on which the sliding mechanism is installed, and by placing it vertically, we install the power button of the phone in its place. Holding this part of the case in the same position, take the second part, push the cable into the opening and align both parts of the phone case. In order for them to come together, you need to move the slider mechanism a little to the side. When both parts are aligned, tighten the two bolts.
The part of the phone with the display is assembled, we take the part of the case with the keyboard and push the cable through the hole in this part of the case.
We install the board on which the sim card is located and connect our cable from another part of the phone and the cable from the keyboard and speaker to it.
We tighten the body with six bolts to the sliding mechanism.
Install the lower part of the phone case and twist it. Then we install a decorative plug from the end.
We install the last part of the phone case in place and screw it on.
We install the SIM card battery and check the phone. If all the work is done correctly, the phone will work without problems.

"I do it myself - I'll tell you how to do it for you!"

All gadgets break down sooner or later, and smartphones are no exception. In fact, phones can be extremely fragile - sometimes just dropping them is enough to render them useless or badly damaged. But even if the phone has never been dropped, there are still tons of things that can happen to it. One of them is when, at some point, the screen lock button stops functioning, and then you are simply unable to lock or unlock it.

Obviously, things are not so bad with phones that have a physical back button like the vast majority of Android phones. The Home key can also be used to wake up the phone. Phones that can be unlocked by double tapping the screen are fine too. But phones that lack the latter feature and have capacitive or on-screen navigation buttons become as functional as a potato once their lock button stops working.However, there are several things that can be done to remedy 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 over the phone. Once the phone is working, you can proceed to the second step. Alternative option: connect your phone to a 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 gets stuck, as if it is constantly being pressed down, shake the phone well, just do not bump it on anything. If you're lucky, the button will move away and work fine. Avoid turning off your phone completely, because then you won't be able to turn it back on without a working power button.

Now that the 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 remap the lock function from a faulty button. You can easily find any application that best suits your needs. Here are the most popular and effective ones:

1) Power Button to Volume Button.

This app reassigns 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.

This application will also be of great help in case of a malfunction of the screen lock button. It automatically detects your hand position and unlocks your phone if you hold it like you want to use it. The program works fine with most phones, although some models may have problems.

This application will unlock your phone when you shake it well. The program automatically analyzes the situation, preventing accidental and unwanted unlocking when the phone can be shaken in your bag, for example.

Step 3: find a permanent solution

All of the above, although it will be effective in most cases, is still a temporary solution, not a permanent one. It will be better if you contact a service center if your phone has a faulty screen lock button.

In this guide, we have written about how to check the device's performance at home, and without technical knowledge. We need: a multimeter and a laboratory power supply.

There may be several reasons why the phone does not turn on:

The battery is dead;
The battery is out of order;
Broken power connector (microUSB);
The power button is out of order;
The power controller is out of order;
Other reasons in the telephone power circuit.

Follow all the steps that we write about in sequence and you yourself will be able to diagnose the phone or tablet for the cause of the breakdown.

The battery is empty.

In most modern phones, unfortunately, the battery cannot be checked indiscriminately, but there is an option. Putting the phone on charge (known to be good) from 15 to 60 minutes, the battery will be charged and the phone will start to turn on. If it does not turn on, the problem may not be in the battery or the battery is discharged below the threshold level, which can be checked only by disassembling the phone. We do not recommend disassembling such phones, because in most cases this leads to more serious breakdowns, it is better to contact a specialist.

You have access to your phone's battery. In this case, check the battery with a tester (multimeter); the voltage at the “+” and “-” terminals must be at least 3.7 volts. If below, then the battery needs to be charged, either in the way I wrote about above, or connect the battery to the power supply.

Does the battery show 3.7 volts or more? Then let's move on.

2. The battery is out of order.

The first thing to do is visually inspect the battery. It should not be "swollen" or corroded on the contacts. If such is the case, you should get rid of the battery. It is dangerous to use such batteries.

Second, suppose you have a laboratory power supply. You need to connect the battery to the power supply, if there is a battery consumption, that is, it is charging, then it is working. If there is no consumption, then the battery is out of order. (in this case, the battery may still be alive, but some of the circuits are out of order, but this cannot be checked at home)

3. Broken power connector (microUSB).

It is necessary to inspect the connector for chips, corrosion. If they are, then you need to change the connector. There are no noticeable chips, then you need to check the connector for "wobbling", take a thin sharp object and carefully move the connector up and down, if it wobbles, it means that it is unsoldered from the motherboard, you need to solder it.

4. The power button is out of order.

We connect the phone to the laboratory power supply to the battery terminals, setting 3.7 volts. We press the power button and and observe the behavior of the ammeter. If the ammeter shows 0 amperes, then the phone does not respond to the power button. (either there is an open circuit in the circuit, or the power button is out of order). If the phone starts to consume from 0.1 to infinity when you press the power button, then a component in the power circuit has failed in the phone, you can only determine by disassembling the phone. If the phone starts to consume about 0.4 aper, and after about a minute the consumption has dropped to almost zero, but when the button is pressed briefly, it increases, then the phone has turned on. And there is no image on the phone, it means the display backlight or the display itself is broken.

The power button can only be checked by disassembling the phone and ringing the button with a multimeter, for reasons of sticking or an open circuit. If the button is stuck or does not respond, you need to change it.

Video (click to play).

Further stages of diagnostics require knowledge of electronics, and professional equipment. Therefore, if up to this point you have not identified what the malfunction is and have not fixed the phone, contact the Apache service center, where they will repair your phone as soon as possible.

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