What will happen if you reset all settings on your Android phone

Many users are faced with a situation where the smartphone begins to work unstable: applications crash, the battery runs out in a couple of hours, and the system freezes. In such cases, advice is often given to perform a complete data reset. However, before you press the coveted button, you need to clearly understand what happens if you reset all settings on an Android phone. This action irreversibly turns your device into a “out of the box” state, erasing years of accumulated digital life.

The procedure, known as Hard Reset or “return to factory settings,” affects all sections of memory accessible to the user. It removes not only the apps you have installed, but also system caches, error logs, and personalized system configurations. It is important to realize that after pressing the confirmation button, there is simply no way back without a previously created backup copy.

In this article we will analyze in detail all the consequences of the reset, debunk popular myths about the safety of data on SD cards and provide a step-by-step algorithm for safely restoring the functionality of your gadget.

Complete deletion of user data and applications

The most obvious and radical consequence of the reset is the complete cleaning of the internal storage. The operating system Android forcefully deletes all files that were written to the user memory section after purchasing the device. This applies not only to photos and videos, but also to documents downloaded from the Internet and archives.

All applications you installed will be permanently deleted along with their data. This means that game progress, drafts in notes, saved browser passwords and messenger caches will disappear. If you did not use cloud synchronization or did not make a local backup via Settings → System → Backup, it will be impossible to restore this information.

⚠️ Attention: Even if the application is installed on a memory card, its settings and data are often stored in the internal memory. After resetting, the application will have to be downloaded again, and old saves may be lost if the developer did not provide a cloud backup.

System applications that were preinstalled by the manufacturer or telecom operator will return to their original state. Any updates for them downloaded via Google Play Marketwill be deleted, and the first time you start the phone, it will start downloading the latest versions again.

The fate of accounts and synchronization data

One of the most common questions: “Will my contacts and photos disappear from Google?” The answer depends on where exactly the data was stored. If your contacts were saved in the SIM card memory or synchronized with your account Google, then after entering your login and password they will automatically be downloaded back to the phone.

However, local data disappears forever. This applies to notes created in a standard notepad without being linked to the cloud, voice recordings of a voice recorder and photographs taken by a camera, if synchronization with Google Photos was disabled or did not have time to complete.

• 📧 Email: The mail itself will not be lost, since it is stored on the server, but the mailbox settings in the mail client will be reset.
• 📱 Messengers: The history of correspondence in WhatsApp or Telegram will be deleted if you did not backup the chats before the procedure.
• 🔐 Passwords: Data saved in the browser or password manager will disappear if it is not synchronized with the cloud service.

After resetting, during the first setup, the phone will require you to enter the password for your main Google account. This is a security mechanism FRP (Factory Reset Protection)that prevents unauthorized persons from using a stolen device. Without knowing the password for the account that was last on the phone, it will be extremely difficult to unlock the device.

What is FRP and how to bypass it?

FRP is anti-reset protection. If you forgot your account password after resetting, you can officially unlock your phone only through the service center with a purchase receipt. Third-party workarounds often violate the warranty.

The impact of a reset on the memory card and SIM card

There is a common misconception that a factory reset (formats) the microSD memory card as well. In the standard reset procedure through the settings menu, the operating system Android usually offers a separate “Empty SD card” checkbox. Unless you manually check this box, the files on the flash drive will remain untouched.

However, you should exercise caution. Some manufacturers' shells, such as MIUI from Xiaomi or One UI from Samsungmay offer card formatting as part of the wipe process, especially if the card has been configured as internal memory (Adoptable Storage). In this case, the card will be formatted and the data on it will become unreadable.

Data type	Internal memory	SD card (without a check mark)	SIM card
Contact	Deleted	Save	Save
Photos and videos	Deleted	Save	Not applicable
Applications	Deleted	Deleted (data)	Not applicable
Music	Deleted	Saved	Not applicable

The SIM card is completely protected from the effects of resetting the phone. Contacts saved directly on the SIM card chip, as well as the operator’s balance and tariff plan will remain completely intact. The phone will only “forget” the network settings, which will have to be re-entered if they are not loaded automatically.

System recovery and elimination of software errors

Why do you need to make such sacrifices? The main reason is to restore system stability. Over time, software garbage, library conflicts and registry errors accumulate, which lead to slowdowns. A reset removes all these layers, returning the code to purity. Android Software garbage, library conflicts and registry errors accumulate, which lead to slowdowns. A reset removes all these layers, returning the code to purity.

If your phone is infected with a virus that is not removed by antiviruses, a full reset is the most effective treatment method. Malware typically resides in the user partition, which is completely cleaned up. The exception is viruses that have penetrated the system partition (root viruses), but they are rare on ordinary devices.

This procedure also helps solve problems with rapid battery drain caused by “dormant” applications that continue to consume resources in the background. After a reset, you start with a clean slate, installing only the apps you need.

⚠️ Attention: A factory reset does not fix physical damage. If the phone is running hot due to a faulty processor or is draining quickly due to battery wear, a soft reset will not solve the problem.

After the procedure, the phone may run faster in the first days, but over time, as you install applications and accumulate data, the speed may slow down again. This is a natural process of aging of flash memory and software.

Preparation for the procedure: safety checklist

Before taking radical measures, it is necessary to perform a number of preparatory actions. Ignoring this step may result in the loss of important information that cannot be recovered. Spend 15-20 minutes checking all the points.

Make sure you know the passwords for all your accounts. After the reset, the phone will require authorization. If you use two-factor authentication, make sure you have access to your phone number or backup codes, as the authenticator app will also be deleted.

Charging the device plays a critical role. The reset process and subsequent initial setup may take considerable time. If the phone turns off while formatting the memory partitions, this may damage the bootloader and turn the device into a brick.

It is also recommended to disable FRP protection before resetting if you plan to sell the phone. To do this you need to go to Settings → Accounts and remove your Google account from the list. Otherwise, the new owner will have to enter your data to activate.

How to reset: step-by-step guide

There are two main ways to return the phone to its factory state: through the settings menu (soft reset) and through Recovery mode (hard reset). The first method is preferable, as it is more secure and understandable for the average user.

To do it through the settings, go to the section Settings → System → Reset settings. The path may vary slightly depending on the model and version Android. Select "Erase all data" or "Reset phone settings." The system will warn you about the consequences and ask for a PIN code or pattern.

Settings → About phone → Reset settings → Delete all data

If the phone does not turn on or is locked forgotten password, you will have to use Recovery mode. To do this, you need to turn off the device and hold down the combination of buttons (usually Volume Up + Power). In the menu that appears, use the volume buttons to select the item Wipe data/factory reset and confirm the action with the power button.

⚠️ Attention: The Recovery menu interface is controlled only by the volume and power buttons. The touch screen does not work in this mode. Be careful when selecting items so as not to erase unnecessary items.

After confirmation, the phone will begin the cleaning process, which can take from 2 to 10 minutes depending on the amount of memory and the speed of the drive. Upon completion, the device will reboot and launch the initial setup wizard, as it did when you first purchased it.

What will happen to licensed applications after the reset?

Licenses for paid applications purchased on Google Play are tied to your account, not to the device. After entering your login, you can download them again for free in the "Library" section. However, if the application was purchased outside the official store, its license may be lost.

Is it possible to interrupt the reset process?

It is strictly not recommended to interrupt the reset process by removing the battery or pressing the buttons. This can damage the file system partition table, rendering the phone inoperable and requiring flashing via a computer.

Is the phone's IMEI reset during a factory reset?

No, the IMEI (unique hardware identifier) ​​is recorded in a secure memory partition (EFS), which is not affected by a normal user data reset. It will remain the same.

Do I need to update Android after a reset?

A reset returns the version of the system that was installed at the time of the reset. If you previously updated your phone to a new version of Android, it will remain. If not, you will have to update manually through the settings.