Forgot your SAMSUNG GALAXY password? There is an exit! Forgot the graphic key on the phone Android: how to unlock

The Android operating system supports the screen protection function to ensure the safety of the device from unauthorized access of third parties. Users can set a PIN code, password, or a specific compound scheme 9 points on the display. If you use Android recently, you can easily become a victim of your own protection, just forgetting the data entered as a password. The following describes 5 simple ways, how to unlock the phone if you forgot the graphic password.

In order not to suffer with a hacking of the code installed earlier, it is extremely recommended to download the SMS BYPASS application, but now it is difficult to find it, but really. We will not give a link in order not to be accused of spreading unwanted software, we apologize for it).

Entering data from Google account

When you turn on the tablet, the OS always proposes to register a new Google account, which will later be tied to the device. If you remember the username and password from the account, unlock the forgotten graphics code will not be difficult. How to unlock android in this way, read in the instructions:

Important! The method works if the phone is connected to a Wi-Fi or a mobile network.

If you enter an incorrect password, PIN or Figure 10-15 times (depends on the device), Google will offer to log into the account to restore access.
Click on the "Forgot Graphic Code?". Enter the login and password from the account, the device is unlocked.
Now you can change the layout method in the settings or completely disable it.

Now you know how to easily remove the lock from the phone android, knowing the data from the account. But what to do if there is no connection to the Internet, and you need to urgently read the message from the boss?

We connect online

1 option - use Service code

Go to the emergency call menu.
Dial the following code: * # 1378423 # * # *.
In options, select "Service Tests"
WLAN. Wi-Fi network will turn on.

On different models, service codes may differ, you can always find the necessary on the forums.

Option 2 - lAN adapter

If there is no possibility to use Wi-Fi, use the LAN adapter and the router with an Ethernet cable (LAN). We connect to a complete Micro-USB connector, the network will appear automatically.

Important! LAN adapters are supported by all Android devices. For information specifically about your model, contact your service center or read the characteristics in the instruction manual.

3 option

Android on the tablet cannot check the data from the account on Google servers if the smartphone is not connected to the network. Hack the graphical key on the phone is completely optional, the main thing is to provide gadget access to the Internet.

Reload the device by holding the power button for a few seconds.
Once the device turns on, open the "curtain" of notifications and click on the Wi-Fi icon or the mobile network. If there are saved access points or enough money on the SIM card account, the Internet will work. Make everything as fast as possible, otherwise the screen will be blocked earlier than to open the notification center.
Enter the login and password again. If everything is correct - the device is unlocked. You can reset protective settings.

Unlock without connecting to the network

If the saved Wi-Fi points are missing, and the money on the bill is over, try the following options below:

If you have a screen with access to the Internet at hand, turn off the smartphone and change the sim card to work. Turn on the phone - 3G or LTE should appear.

Delete the system file gesture.key

First you have to install the upgraded RECOVERY menu.

There are two options:

Read more on video

Miraculous AdB Run Program

Not very long ago, a wonderful AdB Run utility appeared, download, install and remove graphic passwords on your gadgets. Instructions for use will find on the link, it is recommended to thank the author if the ADB Run helps).

Battery Discharge Method

Wait until the battery charge of the tablet drop to a low level. Depending on the device model, it can be 30, 15 or 10%. Carefully follow the screen as soon as the notification will appear about the need to connect the smartphone to the zoom - click on it. The Device Settings menu opens, go to the Safety tab and disconnect the screen lock.

Important! This method works only on Android 4.1 or older.

Using third-party applications

For gadgets with root rights, a special SMS BYPASS application has been developed. It allows you to unlock a special SMS message containing a specific code.

Install the application to the smartphone and provide it to access to root rights.
If you forgot the graphic key, simply send a message with the text: "1234 reset" (without quotes). Immediately after receiving SMS, the device is unlocked.

Call to phone

On the old versions of Android, you can simply call the graphic lock by calling the device. If you are the owner of the old gadget:

Important! The instruction works on Android 2.2 and older.

Dial your number on another device and click the call button.
Take the incoming call and quickly go to the settings. In the Safety tab, disconnect the lock using a graphic key.

There is another similar way, but it works only on old Samsung models:

Click on the "Emergency Call", then the "Back" hardware button.
For a second, android will go to the main menu with applications, and only then return back to the lock screen. For this second you can have time to click on the application menu. Then, in the same way, open the settings, scroll to the Security tab and remove the protection.

Reset settings in the RECOVERY menu

Tablet protection is easy to disable through the Recovery menu, pre-installed on any Android gadget.

Important! All data will be lost after the Hard Reset execution.

For each model, the entry method in the recovery is slightly different. Below are options for popular manufacturers:

Samsung - Disconnect the smartphone. Press the hardware and power adjustment buttons at the same time. After the Android icon appears, release the "volume down".
Sony - Turn off the device, clamp the volume and power button. Release after turning on the screen and expect the Recovery boot.
LG - Hold the "volume down" and the power switch on the shut down. Within 10-15 seconds there will be an entrance to the recovery menu.
HTC is the method similar to the instructions for Sony.

The recovery navigation is carried out using hardware volume buttons, and confirmation of the action is possible when the power button is pressed.

Select "WIPE DATA / FACTORY RESET".
Confirm the desired action by selecting the inscription "YES" on the touch screen, then press the power switch. Expect a discharge end.
Restart the phone by selecting "Reboot System Now".

On some models, the recovery navigation is possible using the touch buttons, and the menu is different. This is especially true of the tablets and smartphones of Huawei and ZTE.

The lock key is reset, but all your application data and accounts, as well as information from internal memory, were permanently permanently. Information on the SD card with such an operation will not be affected.

Appeal to the service center

The official service center manufacturer can help unlock for a specific fee. This is not a warranty case and free maintenance can be denied. In addition, experts can not always hack the latest versions of the Android operating system, since the protection means are upgraded and manufacturers are increasingly installing electronic chips.

In any case, use the services of only authorized services and disagree to give the device to the repair of "Masters" in the bazaar. As a rule, such craftsmen can only harm, but with the return of access to data will not help.

Copy all memory for external carrier

The extreme way and the most complicated. If you do not know how to overpass chips, you may not even look like this is done. But I will leave the video yet.

Forgotten unlock key on the smartphone - an extremely unpleasant situation. You can prevent it by installing a special program and receiving root rights. In addition, thanks to the vulnerabilities of the Android system, it becomes possible to include the Internet and go to your Google account, having completed the removal of protection quite legally.

If we recently use a smartphone or tablet, do not install a complex pattern or a long password with a large number of characters. In any case, try to remember at least part of the protective circuit - Android will provide 10 attempts to enter every 20 minutes. Of course, if you enter the wrong codes constantly, the device will be blocked, and then without authorization in Google it is not necessary.

Conclusion

Unlocking an Android phone or a tablet with a forgotten graphic key takes from several minutes if there is data from the account, up to the week if you appeal to the service center. Remember that the graphic key is not the most reliable protection method and attackers are also easily capable of accessing valuable information on the device, guessing the right picture.

To ensure the safety and confidentiality of important data, use SD card encryption, complex passwords or PIN. On new models, fingerprint scanners appeared, providing a high level of protection and reliable to use.

Video

Everyone must independently take care of the safety of its data. And the more technology is being developed, the more importantly the literacy of users in this matter becomes. After all, today not only important contacts, but also personal photos or even access to payment systems can be kept. Help protect your money and data on Android phones is designed in advance the password installed on the device. But there are cases that the code is forgotten, and the device needs to be unlocked. Simple instructions will help to solve this problem.

About the need to install a password on a mobile device

Many underestimate the importance of the password on the device, considering that they have nothing to hide.

In fact, the password allows you to:

Be sure that no one except you will use the phone - the phone can even take home, family members. And it can lead to controversial situations or even cash spending, for example, if a small child will get to the device;
In the event of theft of the phone, complicate the work of criminals - a password phone, of course, can hack sooner or later. But it is not a fact that at the same time they will be able to maintain the data, which means the attackers will not receive important information. Well, besides, while they are busy password, you will have time to block payment systems tied to the telephone.
An important argument to the password installation is that this is the mandatory requirement of some applications, for example, Sberbank-online service.

Varieties of protective codes

Despite the fact that there are different ways to protect your phone password, allocate the main of them absolutely not difficult. This is a graphical key and a regular password.

Graphic key

The graphic key protects your phone with a password, which is a sequential connection of several points on the screen. That is, you must repeat the pre-installed sequence.
Set the graphic key as follows:

Open the settings of your phone and scroll down the screen down until you reach the "Personal Data" section. There you must choose the "Security" string.
Scroll down the phone settings and find the Safety section there.
The very first point will go to configure the screen lock. Go to this section.
Select "Screen Lock" in the Security section
And then it is worth selecting the "Graphic key" string.
As a way to lock the screen, select Graphic key
A screen with dots will open. It is here that you should ask the same graphical key. You can set any sequence of points, but it is important to remember it. Let the combination be to have a clear association for you.
Specify the graphic key on the screen of your device.
The last item must specify whether to display notifications on the locked screen. Here you decide for you, but that the information is hidden as much as possible - it is better to ban them.
Select the display of notifications on the locked screen
Graphic key created and with the next attempt to get access to the phone, you will need to enter it.
The next time you turn on the phone, you will see a graphical key request.

There are also applications that can replace standard solutions for creating a graphical key. But the procedure for creating or using a key in such applications is almost completely identical to the standard one.

Normal password

The usual password consists of letters or numbers and can be anyhow. Theoretically pick it up more difficult than the graphic code - but in practice it all depends on ingenuity when creating a password. A password is set as follows:

In modern phones, a fingerprint scanner is used to remove the lock from the device, which is definitely more convenient and safer than setting the password.

How to unlock the phone when forgotten graphic key

Each password, unfortunately, can work both on intruders and on you. And if you forgot what graphical key you are installed, then you will have to try to get access to your device.

Removing the lock via Google Account

If you remember the data from your Google account, which is tied to the phone, then access the device without knowing the graphic password is not so difficult. Enough do the following:

Bypassing a graphics key using a call to devices

To make a call, there is no need to remove blocking. This can be used as follows:

Of course, such a solution is temporary, but you can at least save the necessary files before the coarse methods of getting rid of the graphics key. Correctly this trick works only on the old Android versions, but no one bothers this option to try this option.

Similarly, you can cause the appearance of the top panel, for example, dischargeing the battery of the device.

Removing the lock by reset device

You can reset the device as going out in the phone menu using the previous method and otherwise. The main thing, remember that when you reset you will lose all data on the phone. Be careful and make sure that there is nothing valuable among this data. You can reset the phone as follows:

Turn off the device before reset. To get around the graphic key, we will reset from the phone recovery menu.
To access the recovery menu, the volume key is most often used with the HOME key. But there are other combinations, such as POWER + HOME + volume increase, separately POWER + HOME or a decrease in the volume + Power. You can find an accurate combination for your model on the Internet, but with a high probability one of the already specified.
At the same time, click the volume key and Home to access the recovery mode.
In the recovery menu, select Clear Data, Factory Reset or Similar to it. The exact name depends on the phone model. To switch between items, use the volume keys - touch control will not work in this menu.
Use the volume buttons to select Wipe Data / Factory Reset
Confirmation of the line you selected will be pressing the power button of your phone. Do it.
Power key on the side of the phone is used to confirm the selection in the device recovery mode
Switch the string on YES and confirm the input of the power button.
Confirm your device reset
And after completing the reset, select Restart Device (Reboot System).
Select Reboot System Now and confirm this item using the POWER button.
After rebooting, your device will start without data or contacts, but, but without a graphic key. Reset completed.

If you hit the phone settings, the reset can be done through them:

Removing the graphics key in the service center

If you do not feel sorry for money, then you can remove the blocking in any service center. Their methods are not too different from those mentioned in this article, so it is necessary to decide depending on which resource is more important for you - time or money.

Sometimes the graphic key can simply guess, besides, look at the screen carefully. From the frequent input of the key on the screen there is a trail.

Video: A method of bypass graphics key on the phone

Deleting a graphic key file

When creating a graphical key on the phone, a file is also created for its operation. Consequently, when deleting this file, the device will stop asking the key to remove the lock. But this action should be performed only by an experienced user, as interference in the device at such a level can be dangerous, it is necessary to be extremely attentive. And this is done like this:

Using an application for blocking discharge

An SMS BYPASS application that can be used to remove the lock. It must be installed in advance on your device, but if you didn't do it, you can download the application and remotely, through the attached Play Market account (although in a situation when you remember the password from your Google account, there are ways to restore and easier).

By itself, the reset through this application is very simple:

Features of the removal of the graphics key for different models of phones

Instructions that were shown above are suitable for any Android device model. But there are also a number of features for removing the graphics key for specific phone models.

Samsung Kies will help you for SAMSUNG phones. With it, you can recognize your login that in the future it will help to fully access Google account (password recovery is carried out by the Google service facilities). The information you need will be in the "On Device" section when the device is connected to a computer with the installed program. And also this program will help you get access to the phone data, which will be useful if you still have to reset the device to factory settings.
Sony Xperia phones have a number of features regarding the system reset - the transition to recovery mode is called by simultaneously pressing the loudness and turning on the phone, but it can sometimes not work. In this case, it is worth just to press the inclusion button for about twenty seconds. This will restart the device, and then you can try to open the recovery mode.
And also at Sony models, Sony Update Service will help you - it will not remove the graphical key, but simplifies the device for resetting the device.
Huawei phones will help you the Hisuite program - it is also possible to facilitate the reset of the device, which, in turn, will relieve you from a graphical key problem.

Digital Password Reset on Android Device

A number of methods for resetting a digital key coincides with the methods of resetting a graphical key. You will also help you:

appeal to the service center;
reset device data;
log in with the data from Google account;
and the other methods mentioned above.

But there are other opportunities. For example, the Lock Screen Removal program can help you get rid of digital code without losing data:

Download this program from the official site and launch it. Connect your phone to the computer, and then, on the first screen, click Start.
Run Lock Screen Removal and click Start
Turn off the phone, and then transfer it to data loading mode. To do this, at first, at the same time, clamp the power button, the volume key and the HOME key, and then when the device recovery menu opens, hush the volume key. After that, your phone will be in boot mode. Click Start in the program.
Spider Hold the POWER key to the volume + home volume, and then release them and press the volume key
You will start loading data, you need to wait for its end.
Now you know the various ways of resetting a graphic or digital password on the phone. This is definitely good, because you can return access to your device. But still the blocking code is better just not to forget, because it is designed to protect your gadget, and not create extra problems.

Consider how to unlock forgotten graphic key android.

Despite the convenience and simplicity of this function, many users often forget the key and cannot.

For such cases, a variety of data reset methods are provided in the operating system, which will return to your phone access.

Graphic key function. Essence and use

For this you do not need to enter a graphic key.

Fig. 6 - Access Restore via the Connect Charger window

The only complexity of the method is that the system window disappears in 10-15 seconds after the appearance. Catch the message is not easy when the phone is discharged slowly.

Method 4 - Input to Google Personal Account

If the user incorrectly enters the graphic figure several times (more than 5 attempts), a notification appears on the screen that you need to wait half a minute to the new input attempt.

At this moment, the "Forgot key?" Key also appears . By clicking on this field, you will be redirected to the input window for.

Print email and password in the appropriate text fields. After checking these, the password will be reset.

To set it again, go to security settings and set a new figure.

Fig. 7 - Recovery through the page in Google

Method 5 - Running the connection with the Internet

If you enter the correct username and password, but there is no connection, you should try to connect the Internet using the hot key of the smartphone:

To start restart the phone;
Immediately after turning on, the status bar appears ("Curtain" at the top of the screen). Expand this window and click on "Mobile data".

Fig. 8 - Mobile Internet Enabling

If there is a router nearby, to which you have previously connected, you can press the button and the connection will automatically be connected without entering the password.

After activating the Internet, again enter the account data in Google. Now the system will be able to recognize the page and access to the phone will be restored.

Fig. 9 - Enable Wi-Fi with hot keys

In the case when you fail to open the notification center window, use the Special System Code to connect to Wi-Fi:

On the lock screen is the button "Emergency call". Click on it;
In the window that opens, enter the command "* # * # *" \u200b\u200b(without quotes);
Wait until the system configuration window appears and select the Service Tests tab (in some versions - Service Provider);
Click on WLAN;
Complete Wi-Fi.

Fig. 10 - Select the connection window

If there is no router nearby, move the other SIM card to the phone with the Internet connected and activate the data transmission over the mobile network.

Enter data for Google+. After that, the Android is unlocked.

Method 6 - manual deletion option

To use this method, the Recovery Mode option must be installed on the phone. It is only in official phone models.

Depending on the type of recovery window (CWM or TWRP), the interface and the location of the tabs may differ slightly.

Move the Aroma Explorer archive from the PC to the phone and move the file to the memory card. Now go to the Recovery Mode and open the folder with.

Perform its installation. Now in recovery mode, access also to system files.

Fig. 11 - Installing the program in Recovery Mode

Go to the DataàSystem directory and in the file list that appears, delete the object with the name "gesture.key" - it is responsible for the installed graphic key.

Without this file, after a reboot, an automatic password reset will be performed.

How to run Recovery Mode? To do this, it is enough to press the power keys, volume and on the "Home" button. Hold them for 15-20 seconds before the window appears with commands.

Another option to delete the "gesture.key" file is to connect the phone to the computer in the drive mode (mode can be selected via the notification center without unlocking the screen).

Now go to Recovery mode and install the application from the archive in the same way as shown in Figure 11. Now simply reboot your android.

After the locker screen appears, enter any combination of lines and access will be restored.

Do not forget that after a successful login to your smartphone, you should disable the graphical key in the settings.

Method 8 - Deleting the key using an additional account

This method is suitable only if there are several authorized users and root-rights in the phone.

In the account of each of the users, the Super Utility must be present, which is running in multiplayer mode.

Fig. 13 - SUPERSU Application Settings

A specific graphics key combination can only be installed on the account of one user.

If you try to put the same figure on the lock screen of another account, the system will not allow this to do.

Thanks to this option, you can always access the phone, even if you forget one of the keys.

Go to the second user account and run SuperSU.

Go to the DataàSystem window and delete the file that contains graphic key, as well as objects with extension dB, DB-WAL and DB-SHM - Objects of local phone settings.

Method 9 - Calling Recovery Menu and Reset Settings

This option is also suitable for any smartphone or Android OS. To remove a forgotten key, you must reset the settings to the initial parameters.

This feature is provided on all phones, and the process turns on through the settings window.

Since the user cannot go to the settings from the locked gadget, the Recovery Mode menu should be used.

Turn off the phone and start the recovery window by simultaneously pressing the three keys (HOME, volume and inclusion).

Run the Data Reset process specified in the figure.

Fig. 14 - Reset settings to factory

Remember! As a result of this action, all data and user files will be removed from the smartphone without the possibility of their further recovery. Before reset, we advise you to get a memory card from the phone and sim card that contacts are not deleted.

After rebooting, you will need to re-configure the gadget:

Connect the Internet;
Pass authorization through;
Set location settings.

Fig. 15 - Running resetting process to factory settings

Now, many smartphone owners are used to unlock the method of entering a graphical key. This allows you to protect the device from thieves that simply will not be able to access the contents of the device. However, sometimes such a method plays with a user's cruel joke. The direction of the movement of the finger can be forgotten. At such a moment, the owner of the device begins to wonder: "How to unlock android if you forgot the graphic key?" In today's material, we will answer this question in detail.

Remove the graphic key from android can be several ways. Not all of them are triggered in the absolute majority of cases. But there is one most reliable way. It is to install SMS BYPASS. . This small and completely inexpensive program will allow you to remove the graphical key, sending a special SMS message to the smartphone containing the text " 1234 Reset." Of course, this code can be changed in the utility settings.

Attention: To work the application requires root access ! Be sure to get the right of superuser before it is installed!

It should be noted that installing SMS Bypass can be even on a blocked device, if only it was on it google Account . To install, you need to go from a computer in Google Play. Under the same account. Go to the application page and click the " Buy" Then you will give the choice to which the gadget is to install the program. If the smartphone is connected to the Internet, the installation will be made in the next minute.

Call to phone

This way to bypass the graphic key on the phone does not require any investment. No need to install an additional application. You only need to make a call to your number from another machine.

Attention: This method only works on old smartphones operating under Android 2.2 or an earlier version of the operating system. Later, the breech is safely eliminated.

The method is to reset the graphic key while taking a call. It is done on the way " Settings» - « Safety».

Entering data from your account

This method does not work on all versions of Android. He will be sewn only into some branded shells. The method of removing the graphics key is five to six attempts to incorrect it input. After that, you will be offered to wait 30 seconds.

After further fruitless attempts to make the right movement with your finger, a window will appear with the button " Forgot the graphic key?" Click it, after which you will need to enter data from your Google account (login and password). If at the moment your smartphone is not connected to the Internet, then you can do it immediately after it is rebooting. Also, for this you can click the button " Emergency call"And enter the following code: *#*#7378423#*#*

Manual deleting file gesture.key

Attention: This method works only on smartphones with a modified Recovery menu! If you have never installed third-party firmware, then this method is not for you!

Your graphic key is contained in a text file. gesture.key.. If you delete it, then the graphical key itself will be reset. You can eliminate it without unlocking the device using the following menu Recovery:

CWM;
TWRP.

Your actions are unusually simple:

1. Download the Utilities archive file to your computer Aroma File Manager. .

2. Move it on the memory card.

3. Insert the card into your smartphone.

4. Go to menu Recovery. And install the application.

5. Go along the way "/ DATA / SYSTEM /».

6. Delete files gesture.key., locksettings.db., locksettings.db-Wal. and locksettings.db-shm..

7. Restart the smartphone.

8. Enter any graphical key - the device must be unlocked.

If you have a Recovery TWRP menu, you don't even need to download a separate utility. Find the file manager you can on the way " Advanced» - « File Manager.».

Using the second user

This method works only on apparatus with root access installed by the application SuperSu. And at least two registered users. It is also important that the multiplayer mode must be enabled in SuperSU.

In order to remove the graphic key from Android, it is necessary:

1. Go to the second user.

2. Go to B. Play Market. and install Root Browser .

3. Open the installed utility and go along the way " / DATA / SYSTEM /».

4. Delete the following files:

gesture.key;
locksettings.db;
locksetting.db-wal;
locksettings.db-shm.

Data reset

This method will work on many smartphones to which the Recovery menu is installed (TWRP, CWN or Standard). With this method, you will have to not only reset the graphical key, but also delete all other user data - a phone book, SMS messages, notes and some other data. Fortunately, if you have a Google account and synchronization on the device, you can easily restore everything. As for photographs, videos and music, they will not go anywhere.

To reset the data, you need to go out menu Recovery. and choose it in it WIPE DATA / FACTORY RESET. At different manufacturers, the release method in the RECOVERY menu is different:

Smartphone Samsung First you need to turn off, then clamp the central key, the increasing level of the volume and the power button. On models released before 2012, you only need to keep the power button and the central key.
On smartphones HTC Hold a button for reducing the volume level and power key. After the image appears from Android, both buttons are released. Instead of Factory Reset, the required menu item may be called Clear Storage. It is desirable before going to the Recovery menu to get and pasted the battery (if it is removable).
On smartphones Huawei. It is also recommended to remove and insert the battery. Then you need to hold the power key and the volume increase button. After the picture appears with Android, the buttons are released.
On smartphones Sony Usually it works one of the above methods of transition to the RECOVERY menu. An exception is old models - they may require the connection of the device to the computer and install the program Sony Ericsson PC Suitewhere you need to go along the way " Instruments» - « Data recovery».
On a smartphone ZTE Usually helps the power button and pressing the volume key at a certain time (then it is necessary to hold it too). And also to reset the data using the button lock on the button " Emergency call"And a combination set *983*987# .
On devices OT. Motorola., Archos., ASUS. and Prestigio. Press the power key and the volume reduction button. Sometimes instead of the latter, the volume key increases the volume level.

Hiking to the service center

The ideal way that works almost in 100% of cases. Just take your smartphone or tablet to the service center. But note that the repair will not be considered warranty. Experts will be able to remove the locking key from Android, but they will ask for their work money.

Using the SAMSUNG account

Of course, this method can only be used if you have a smartphone or Samsung tablet. You should also register the Samsung account, allowing you to use the company's South Korean services. If these conditions are observed, then make the following:

1. Go from the computer to the Samsung Account website and log in by clicking the " To come in"And entering your username with password.

2. Go to section " Find a device».

3. Click the " To find"And reite your login again (the email address specified during registration) and password will suit. After that, press the blue button " To come in».

4. If you have several South Korean devices, select the desired list in the corresponding list (located in the upper left corner). Next, it remains only to click the button " Yet».

5. Click the " Unlock my device».

Summarizing

In today's guide, almost all methods unlocking the smartphone are considered. When you forgot your password or graphic key - you can use some of them. You can also try to reflash the device, for which programs are used. Odin., FlashTool, FastBoot. and many others. But this is a completely extreme case, to resort to which it follows in particular necessary.