Zeroing data. Reset settings on android to factory settings. What to do next

Slow work, "Freezing" of applications or sudden shutdown of the smartphone is a serious problem. To solve it, you need to know how to return or reset the settings on Android to the factory settings, it is in them that most often lies the reason for the incorrect functioning of the gadget.

Resetting settings on Android is an operation during which absolutely all data is erased: photos, cache, videos, RAM, clipboard, applications and various widgets downloaded by the owner himself after purchasing a smartphone.

When you may need to reset your phone to factory settings Android base:

  • If the owner is going to sell a gadget. In this case, all confidential information, which should not get to unauthorized persons.
  • When the device "hangs" and glitches on the simplest operations. This is usually due to a blockage. random access memory, and it is easiest to clean it in this way.
  • A virus has entered the system, and the antivirus program cannot remove it on its own. Only a hard reset or resetting the settings to those provided by the factory with full formatting memory.

How to find Hard reset on your phone

There are several ways to use the Reset function on Android:

  • Through the usual menu. Making a hard factory reset in this way is the easiest way, moreover, the process will take a minimum of time and does not require special knowledge and skills.
  • Using service codes. In most cases, they are universal and fit with equal success for Samsung, HTC, LG, Sony and other manufacturers of smartphones and tablets.
  • By pressing hot keys in a specific combination. Suitable for all brands of devices.
  • Using a computer (suitable for hard reset experienced users only).

Before the procedure, it is recommended that you read the instructions for each method: it will help you understand how best to return to the factory settings of the gadget on the Android platform and prevent fatal errors, because of them the entire system may completely stop working.

Preparing for a factory reset

In order not to lose all data and to make the functioning of the mobile phone optimal after a rollback, it is recommended to carry out preliminary preparation before the procedure:

  1. Copy important photos, videos and other essential information to a USB flash drive, PC or cloud. If this is not done, all data will be lost, and the foreman will have to pay a lot of money for the restoration.
  2. Fully charge the device. In the process, it will be discharged if the charge is insufficient, and interrupting the procedure will lead to bad consequences up to the impossibility of starting the OS. If a hard reset is performed through a computer, the amount of charging does not matter, since the phone is connected to the PC via a cord and is charged from it.
  3. Delete Google account if the smartphone is based on Android 5.1 or higher. The fact is that the company introduced a new security policy, according to which, after a rollback operating system, users need to enter their last account details. Without this, it will be impossible to turn on the device, and you will have to contact service centers, which take on work only if there are supporting documents for the gadget.

The above steps are relevant for all mobile phones: for example, on Samsung and other brands, Google binding is required, although the owner may not use it.

Backup

There are several simple ways allowing to produce backup before returning to factory settings on Android:

  • Using a Google account.
  • Through a PC and using ADB tools.
  • With custom Racovery.
  • Through the DataSync program.

The best option is a backup through an account, since full synchronization takes place in it, as a result of which the user receives easy access to backups. How it's done:

  1. We go to "Personal" and "Accounts".
  2. After selecting your account, put a checkmark in front of all fields.
  3. Go back to the previous step again, click on "backup" and "reset", select data archiving and automatic recovery... We make a full check of the work account and go to the synchronization menu, where we click on "Synchronize".
  4. Log in to your account. Click on reset to roll back to the previous version.

This option is suitable only for those who remember all account information (login and password). You will need it later after a rollback and reboot of the system, otherwise you will not be able to use the device.

As a result of synchronization and creation backup in "Google", after turning on the device will automatically download all the data from the "account".

To perform the operation via ADB RUN, you need a PC and a cord from a smartphone, which must be inserted into the USB connector. The process consists of several stages:

  1. We activate USB debugging on the smartphone.
  2. Launch ADB program RUN.
  3. If the driver has not been installed before, install it.
  4. In the program, select "Backup", then - "ADB Backup".
  5. Find the backup menu in the device and click on it.

After the completion of the procedure, it is enough to perform two steps to restore:

  1. In the program, click on "ADB Restore".
  2. Select "Data Recovery" on your smartphone.

If a custom "Recovery" is installed in the OS, a full copy of the firmware is performed, and not a backup. What needs to be done:

  1. Enter Recovery, click on “ Backup and restore ".
  2. Select "Backup" to copy, then "Restore" to restore.

Another copying option is to use the DataSync application. It is suitable for users who only need to migrate data from other applications. If you need to create an archive copy of them, you will not be able to do this using DataSync.

How to reset settings on Android via Recovery

This option is recommended for those who cannot turn on the phone because the system freezes or cannot enter the lock password or pattern. The procedure using Recovery is as follows:

  1. We activate Recovery by simultaneously pressing two keys - volume down and off. On some gadgets, other combinations can be used: turning on + "home" + increasing the volume (for Samsung); power + volume; volume up and down buttons immediately.
  2. When the menu opens, navigate through it using the volume keys.
  3. Select "Wipe data" or "Clear flash", then - "Yes" or "Yes, delete all user data".
  4. When the process is complete, select the OS reboot item - "Reboot system now".

Some smartphones come with individual instructions on how to back up or restore settings on Android, and the menu items may differ slightly.

We carry out a Hard Reset from Fastboot mode

To reset all data on Android, there is a Fastboot utility that can be downloaded from the developer's official website. For correct installation of this program, you must do the following:

  1. After installing Fastboot, unzip it to the root of the C drive, then download the Java Development Kit, install the package, agreeing to the licensing terms.
  2. Go to the "Android SDK" folder, open it and find the "Android" file, run it.
  3. Install the package by choosing "Accept license".

Users of LG, Nexus, Huawei, HTC and Motorola brands will have to pre-unlock the program:

  • By selecting the "Fastboot oem unlock" command if the device is LG, Huawei or HTC.
  • For other manufacturers of devices, activation is possible only by receiving a code on the official website.

To put the equipment into Fastboot mode, you can use any of the following methods:

  1. Turn off the mobile phone, then press two keys: the power button and volume down.
  2. We connect the device to the PC, enter in address bar ADB command running as administrator and press Enter. When the firmware is loaded, you need to do a hard reset using the commands "./fastboot erease userdata" or "./fastboot-w". After the reset, reboot the smartphone with the "fastboot reboot" command.

other methods

There are several other ways to rollback can be distinguished:

  • Across Google service Find My Device. Suitable for users who have lost a gadget and want to remotely delete personal information.
  • Through the TWRP service. It allows you to clean up individual partitions, not the entire OS.
  • Using the numeric key combination.

In the latter case, you must enter the codes

  1. *#*#7378423#*#8
  2. *#*#7780#*#*
  3. *2767*3855#
  4. press the call key

After that, the machine will perform the operation and reboot. Sometimes the reboot occurs immediately after entering the final character, which is normal.

All of the above options are the easiest to use by users without specific skills. If, after the rollback, other problems appear, it is recommended to contact a professional service, otherwise, with independent intervention, the likelihood of complicating the situation increases.

Conclusion

Doing a rollback is effective method fight against "freezing" of the phone and other problems associated with congestion of RAM and destabilization of the system. You can reset on Android yourself if you know the detailed instructions and have only one free hour, since the procedure itself will not take much time.

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Content

Often to solve programmatic problems with functioning modern smartphones or tablets, you should do a Hard Reset (hard reset) or factory reset the android. In many cases, this helps to get rid of device freezes due to incorrect work some applications, "garbage" files of the system, viruses, etc.

Is it possible to return the phone to factory settings

The ability to reset data is supported by any device on Andriod, so every owner of this system can do it. Before you return the factory settings to your android, you should understand that at the same time you will completely lose all data except for those recorded on the memory card. It will no longer be possible to restore their capabilities; rollback of such actions is impossible. If you decide to reset the device to the factory state, then you will lose:

  • phone book entries;
  • applications;
  • photographs, music, books;
  • saved logins and passwords to accounts.

How to reset settings on android

Before carrying out this procedure, it is strongly recommended to copy important files, information (photos, videos, music) to the computer via a cable. It is better to make a full backup (copy) of the system, so that in case of unsuccessful resetting, you can restore the device to work. There are 3 main options for how to reset android to factory settings:

  1. through the phone menu;
  2. using a combination of buttons;
  3. service codes.

Reset in phone settings

The easiest way to reset android settings to factory settings is the gadget menu. For this, the device must work and be able to go to the main section of the system. For all smartphones with Android 4.0 or older, the procedure is as follows:

  1. Go to the main menu.
  2. Click on the "Settings" section.
  3. Find the "Recovery and reset" section.
  4. Scroll down the page and find the "Factory data reset" section.
  5. The system will inform you that the data will be deleted from the smartphone. Click on the line "Reset phone settings" and confirm the desire to "Erase everything". Items may vary slightly in different models phones, but the names are always the same.

Using service combinations

This method also requires the device to turn on and be able to go to dialing. Each manufacturer programs their devices with special combinations that help to return to the factory state. This applies to both global brands (Samsung, HTC, Sony) and Chinese low-cost models. Codes can change over time, they need to be clarified on the manufacturer's website, sometimes they can be found in the manual for the smartphone. Below are examples of such combinations for your reference:

  • *2767*3855#;
  • *#*#7378423#*#*;
  • *#*#7780#*#.

Key reset with Recovery

The most radical method on how to reset the settings on an android to the factory settings is the Recovery menu. it The best way return to the original state of the smartphone, if it hangs on the screensaver with the company logo, does not turn on. Each device model has a standard button combination that switches it to the Recovery menu. Sometimes you have to use recovery if:

  1. the slowdowns in the phone have become too strong;
  2. the system prevents you from deleting, transferring or changing anything.

First, turn off your phone completely. Wait until the buttons go out, the screen. Next, you need to find a suitable combination for your model (the combination for HTC and Samsung will definitely be different). You can use one of the options:

  • button "decrease the volume" + "turn on" or "Power" (the most common combination);
  • on some LG phones, you need to press the above keys, wait for the logo, release the "power on" and then press it again;
  • "Volume up" + "volume down" + "on"
  • "Power" + "Home".

Hold one of the combinations until you are put into recovery mode to reset the device to the factory state. The menu is controlled by the buttons to increase and decrease the sound. If the Recovery version is touch-sensitive, then you can reboot in the standard way (by touching the screen). To confirm the selection, press the "Power" or " Context menu". Next, to reset your phone to its initial state, you need.

Very often, in questions regarding the Android settings, the phrase "How to reset Android to factory settings?" Hard reset, in order to solve some problems. But we must remember that such a procedure will delete everything that was on the device, from contacts to personal data. And here is a memory card called " external storage ”Will not be reset.

ATTENTION! Before collecting, make sure that all important data is saved on a separate drive, during the reset process, all other data will be deleted!

Below we will analyze how this whole procedure takes place.

The settings are always reset to the factory settings, that is, the smartphone rolls back to the initial state... But more often than not, the Android version remains the same after the update. Everything will disappear from the device, from downloaded applications to phone book, photos, all passwords, etc.

Why do I need a factory reset

This method of reset (Hard Reset) is used if:

  • the device is being prepared for sale;
  • you need to return to the state " as when buying“And this is the most convenient option. The need for this arises when they long time use, remove or install something. As a result, hidden garbage appears on the device, which slows down the system. Factory reset often fixes the problem Google play Market.
  • To unlock your smartphone if you do not remember the unlock key screen. But in this case, do not rush and at first it would not hurt to find out more detailed information on how to fix everything.

Preparing the smartphone for factory reset

  1. The whole important information, photos, videos, documents, contacts, you need to move somewhere, a PC will do. You can just create a copy (backup).
  2. Check the battery level and make sure it is charged. There are models in which it will not be possible to reset the settings until the device is charged, it will not allow it by itself. And there are also such models that will start the reset process and turn off due to a discharged battery at the very peak of the reset. This could damage the device.
  3. On Android 5.1, before resetting the settings, you will need to delete your Google account. This is due to the new rules of the privacy policy. In this case, after resetting to factory settings, the device will ask you to enter data. Without them, it will simply be impossible to enter the device, well, at least not easy.

How to reset Android to factory settings - 4 ways

There are four ways to do this.

  1. Using Recovery
  2. Using settings
  3. Using the "Phone"
  4. Using the secret button

Video instruction how to reset settings

Reset Android settings through recovery (Recovery)

This method will be useful for those whose phone / tablet does not turn on at all, or hangs on the logo. Also, the method is suitable if you forgot graphic key ... Simply put, if there are no more comfortable conditions for resetting the settings, then this method is what you need.

In order to get into recovery mode, you will have to turn off the android so that all buttons and the screen do not work. To enter recovery, press a few buttons and hold. They are individual for each device.

Factory reset on Samsung

For Samsung, you need to hold down the "+" button at the same time on the volume, "home" and power on. If there is no “home” in some model, then such a combination - “+” and simultaneously with this key “Enable” will be enough. After the company logo appears on the tap, release the power button and hold the rest until the system menu appears.

Factory reset on LG

LG models enter this menu in the same way as described above, except for further steps. After pressing the desired combination, each user will watch the company logo appear on the screen, and then you need to turn on the device again.

The most common ways

  • The most common combination is the "-" key and the "Enable" button.
  • "+" On the volume key, then "home" and with them "Enable".
  • "+" And "-" on the volume buttons and "turn on" - this combination is used by almost every Sony model Xperia.
  • Key "turn on", simultaneously with "home" and "+" on the volume.
  • Increase the volume and press "enable" at the same time.
  • Simultaneously volume buttons.

One of the above ways will allow you to enter in the Recovery system menu.

You can navigate through this menu as usual if you have a touch screen. In other cases, use the volume buttons. Confirmation in this case of actions will be carried out by the power button or menu.

Next, you will need to find in it - "wipe_data / factory_reset". Then confirm your intentions with the "yes" button. After completing all deletions in this menu, you just need to click "Reboot_System_Now" and the system will shut down after rebooting. These names of the menu sub-items may be slightly different, but, in fact, they have the same purpose.

This method is the easiest if you can go to the menu.

  1. Start by entering the menu, the path to the settings will be different in each device, but we will consider the most popular ones.
  2. Go to "settings". To do this, go to the menu and select the appropriate item. Found it? Then we press "Restore and reset".

  3. In Samsung devices, we also go to the menu, look for settings, then "general", then "Privacy" (sometimes a little differently).

  4. In Huawei models - menu, settings, then go to the "advanced settings" item, then you need to enter - restore and reset.

  5. In the menu in which you find yourself you need to find the item - Data reset.
  6. After you click there, the device will warn you that absolutely all files and data, including accounts and passwords, will be erased, and contacts, pictures, videos and more will be deleted.
  7. After confirmation, the device will repeat the question if you want to change your mind. Next, it will list what exactly will be deleted, and your task is to press the confirmation button. After the data is deleted, the device will reboot.
  8. Many devices have slight changes to their names in the menus, but they are essentially identical on an intuitive level. Although the above describes almost all the options for the names of the menu and the location of the item in which you need to reset the settings.

Another simple method, which will probably be one of the easiest. Go to Dialer(where there are buttons that dial the phone number during a call). Then we write there below, the specified one code:

  • *2767*3855#
  • *#*#7780#*#*
  • *#*#7378423#*#*

After insertion, the removal process will begin immediately.

Reset settings with buttons

Many devices still there is a reset button... Just press it and all settings will be reset automatically. It looks like a small hole for a needle or toothpick. You just need to push it into this hole and press, holding it for a couple of seconds (however, like any other regular button). After that, without any warnings or questions, the device will return to factory settings.

At this stage, the question How to reset Android to factory settings can be considered solved, and as you can see, there is nothing terrible about it. It is enough just to try, carefully read the above information and do everything possible to ensure that all data remains saved.

If a smartphone based on Android began to glitch and freeze, do not rush to take it to service center or perform warranty repairs. Perhaps this problem can be solved by a trivial reset (hard reset). In this case, all system settings will be restored to factory settings, as well as all contacts, installed applications, messages, etc. will be deleted.

What is a hard reset and why is it needed

A complete reset of the Android settings to the factory default ones is called hard reset. It is recommended to do it if the smartphone does not work stably (often freezes, glitches, etc.). It can be performed with three different ways, each of which will now be considered. Remember to back up all data before starting a hard reset.

Do full copy all smartphone data is possible using the program.

Software way to reset Android

Is to use standard function, which is in the settings of any Android system. To use it, you need to go to "Settings", then select "Restore and reset" and click "Reset settings". After that, a warning will be shown about the deletion of all existing data, and at the bottom - a confirmation button "Reset phone settings".

You need to confirm the selected action by pressing the "Erase all" button.
In some old Android versions below version 2.1, the location of the factory reset may be slightly different. It could be found in the "Privacy" - "Data reset" section.

Method without applying settings, using a code

To do this, dial * 2767 * 3855 # in the number input menu. This will lead to an immediate full restoration of the smartphone settings without any additional confirmation from the user.

Reset Android settings when smartphone is unresponsive

Sometimes there are times when the gadget does not respond to any commands. In this case, the third method of factory reset may come in handy. When turning on Android, simultaneously hold down three buttons: "Power On", "Home" and "Volume Down". This combination should be held until the "" mode appears. In it, select the "Wipe" section (which means full reset settings) and confirm your choice by pressing the "Home" button.

After a hard reset, you might be tempted to restore your Android from a backup. However, this should be done with great care - after all, perhaps the problem that caused the malfunction was in the previous settings or in one of the installed applications... Therefore, it is better not to risk it, but to configure the smartphone as new by entering the data of your google account. After that, contacts, mails, etc. will be synchronized with the smartphone. The necessary applications can be installed independently from PlayMarketa.

Fans of alternative firmwares for Android should remember that a full reset does not affect the areas that the installed additional firmwares are stored. This means that any mods and changes in the software part of the operating system will not be deleted from the phone's memory. This fact should be taken into account if a full restoration is performed, for example, in order to return the gadget under warranty.

In addition, a full factory reset does not affect the contents of the memory card. You will have to delete information from it yourself. However, remember that any deletion with the "Delete" command is easily reversible, and in the case of sensitive data, it is better to take care of the card additionally.

In this manual, we will tell you how to reset an Android smartphone to factory settings, and also dwell on the question of how to properly prepare the gadget and save all the necessary information before accidentally deleting it.

What is an Android factory reset and why is it done?

Many of us have faced the problem of constant device freezes, firmware glitches, loss of connection, etc. To get rid of such difficulties, a factory reset of the gadget on Android comes to the rescue. What does this mean? Resetting the device settings allows you to restore the factory settings of the firmware, which in the future has a positive effect on the speed of the device and the absence of additional "glitches".

What files and data should be saved before resetting the settings?

There are a huge number of ways to reset the settings on an android to factory settings, but the only thing that unites them is the total deletion of all files and data from the device's memory. Therefore, you should take care of important media files and contact information, notes and other documents that you would like to keep in advance. How to do it correctly, read on.

Correct backup of contacts and notebook on android

Let's start with the preliminary saving and transfer of contacts, "where next" from our gadget. The easiest way is to copy contacts to a SIM card. This is easy to do by following our instructions. Go to the contacts menu and select the "Import / Export" item. In the window that appears, export your contacts to any medium convenient for you: a SIM card or SD storage device.

Most reliable way, this is to rewrite your contacts in notebook, but, we have "In the yard", the era of technology and gadgets, this option is not suitable for everyone. We advise you to use an effective and efficient method for backing up contacts on Android - synchronize data with your Google account or its cloud storage. In addition to contacts, the cloud storage service offers you to synchronize SMS messages, notes and calendar entries from any Android device.

To get started, you should register in the Google service, simply create new account or log in to the old one. We will not talk about this in detail, since such simple actions do not need comments. We will tell you about the correct synchronization of the necessary information with Google servers.

Go to the phone settings, section "Accounts". We select accounts "Google". There will be several items in the window that opens.

    Security and entrance;

    Confidentiality;

    Account setup;

In the upper corner of the device screen, your Account(Google account), tap on it.

After the actions taken, a window will appear offering synchronization options. We put a checkmark in front of the items we need. If you want to make a manual backup of your data to the Google server, click on the circular black arrows, as shown in the screenshot.

Congratulations! The required information and data have been uploaded to the Google server and synchronized with your account. After resetting the device, you can easily restore your notebook or smartphone notes.

We make a quick backup of photos, videos, music and documents on android.

A simple way is to connect the device via a USB cable to a computer and transfer the necessary information to it. There is a small caveat - not all phones are synchronized with a PC in the "Flash Drive" mode. At the moment of connecting the gadget to the computer, select the "Use as USB - storage" mode.

The second way to back up the necessary files is to transfer them from the device's memory to a flash card. Open the file manager.

In the manager window, select the photos that are in the phone's memory. The SD card is displayed in a different location (sdcard1).

Mark the photos that need to be transferred to the USB flash drive (pinch your finger on desired file until a check mark appears).

The "Menu" button is located in the upper right corner. If you need to select several files, click "Select All" so as not to waste time selecting each photo. In the next step, tap on the item "Move" and specify the SD card as the end point of the location of your files. To avoid confusion, you can create an additional folder by clicking (+) and save the data to it.

Do the same with video, music and documents, if these files are important to you.

The third way to save data to Andorid before resetting its settings is by using cloud storage. The algorithm of actions is no different from the previous paragraph, all you need to do is download from the play market additional applications: Google Disk, Yandex Disk, etc. We advise you to use Gogle Drive, because it is automatically synchronized with your account data after resetting the settings on the gadget.

Go to Google drive, press "+" and select "Download".

We mark the images and the folder for uploading in cloud storage... Do the described actions with the rest of the media.

detailed instructions to reset Android settings to factory settings

The first and easiest way to perform a factory reset is to use standard menu phone, because the device itself will tell you what to do. First, you should go to the smartphone menu and find the "Settings" section. As a rule, this is the "Cogwheel".

Advice! Experienced users can say that on every Android device, the step-by-step reset of the settings differs in the algorithm and sequence of actions. In fact, this is not the case. "Stock" or " Standard Android»Do not differ in the strategy of resetting settings and data.

We find in "Settings", item "Restore and Reset". We select "Reset phone settings" - "Erase All".

For example, if you have Samsung Smartphone, instead of the menu item "Restore", there is "Archive and reset".

In another case, with smartphones Xiaomi, Meizu and Huawei, the algorithm is no different, but the names of the buttons have changed. Go to "Settings" - "Advanced" - "Reset settings"

After successfully completing the reset, the gadget's performance will be at its best, and you will forever forget about glitches and slowdowns of the processor.

The second way to reset the settings is to use secret codes, which are mainly used by smartphone repairmen. But, even the most simple user can use any of them without any problems. To do this, we need to press the "Vyhova" button and when the on-screen numbers appear, we should dial the "Secret Code".

* 2767 * 3855 # - this code completely reinstalls the firmware, making your phone new. After the manipulation done (1-3%) of users may say that the Android smartphone does not turn on. Yes, there is a risk of such an inevitable event, but do not give up. In this case, you should update the device firmware.

* # * # 7780 # * # * - with this code, the settings will be reset. Applications will be removed, the rest of the data will remain.

Hard reset or hard reset Android settings.

The third way is the most interesting. It was created for users whose main hobby is updating firmware on an Android device. This is a factory reset via Recovery. The so-called "Hard Method" or "Factory reset". There are nuances and subtleties about which we will tell you in more detail and try to answer all questions in the comments to the article.

This "Zeroing" method, as a rule, occurs when the device screen is off, using a certain key combination.

For reference! Be sure to charge your device at least 80%.

Let's get started. Switch off the device.

Everyone has it Android manufacturer Smartphone has a key combination for entering the device into the "Recovery" mode. We advise you to familiarize yourself with possible options, which we will now tell you about. Typically, there is a basic combination: Volume down (-) button and device ON / OFF button. Hold them until recovery appears (like the image in the photo below).

For some LG models, press (-) and the ON / OFF button), but after the logo appears, release the power button and press it again.

On SONY phones of a certain type, press the (-), (+) and the ON / OFF button at the same time.

After our actions, the "Recovery" menu will look something like the one shown in the photo below.

Next, you should navigate the Recovery menu using the volume buttons and select the item "wipe data / factory reset" or "Clear eMMC", "Clear Flash." yes - delete all user data. "After the phone has completed the hard reset, select the" Reboot System Now "item. At this point, the" Hard Reset "process can be considered complete.

As a separate item, we have highlighted the situation in which they can get Samsung owners devices. It happens so that the gadget does not enter the "Recovery" mode. In this case, the Jing adapter will help you. It is inserted into the socket of the charging socket and within 3 seconds enters the smartphone into Recovery mode.

Also, a program has been developed for resetting settings on an android using a computer - Android Debug Bridge (ADB). It should be installed on your computer, and on the phone, activate the ADB mode. Connect the phone to the computer (preferably through the original cable).

Recovering a copy of your device is not difficult. To do this, go to the menu item "Restore and reset" - "Data copying" and "Auto recovery". The presence of a stable and high-speed Internet connection is desirable.

conclusions

In this guide, we have reviewed the most popular ways to reset the settings on Android smartphones. Before deleting information or doing a "hard reset", try to prepare a data backup or sync your device with your Google account.

If you still have questions, ask them in the comments to this article.

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