Removing the main user and administrator on Android

Managing accounts on mobile devices running an operating system Android often raises questions among advanced users, especially when it comes to changing the owner of a gadget or transferring the device to another person. The standard settings interface assumes the presence of one main account, which has full access rights to all system functions and files. Removing this owner profile is a non-trivial task, since the security system by default blocks such actions to prevent accidental data loss or theft of the device.

The procedure for deactivating the main user is fundamentally different from deleting the guest mode or second space, which can be removed by simply pressing a button in the menu. In most cases, to completely get rid of the current linking of a Google account and local administrator data, you need to perform a procedure full reset or use specific engineering methods. Inexperienced users often confuse the concepts of “delete account” and “delete user,” which leads to incorrect actions and wasted time.

In this article we will analyze in detail all the legal and technical ways to delete the main user. We will look at standard methods through the settings menu, using recovery modes, and also touch on issues related to superuser rights. It is important to understand that any manipulations with system profiles carry risks, so each action must be balanced and conscious. Recovery, and also touch on issues related to superuser rights Root. It is important to understand that any manipulation of system profiles carries risks, so each action must be balanced and conscious.

The concept of the owner profile and its difference from the guest mode

The architecture of the multi-user mode Android is built in such a way that the first created profile automatically becomes the owner of the device. This user has a unique ID 0 and has exclusive privileges not available to secondary profiles or guest sessions. It is the owner’s profile that controls the installation of global applications, network configuration and issuing rights to other users.

Secondary users created through the menu Settings → System → Multiple usersoperate in an isolated environment. Their data is stored in a separate partition of the file system, and deleting such a profile is instantaneous and painless for the main system. However, an attempt to delete the very first user through the standard interface is usually blocked by the system with a message that the action cannot be completed.

Technically, deleting the main user is tantamount to destroying the operating environment itself in its current state. The system cannot function without at least one active profile with administrator rights. Therefore, the standard operation logic Android OS prohibits the removal of this kernel, requiring instead the creation of a new environment from scratch, which is actually a reset procedure to factory settings.

⚠️ Attention: Attempts to delete the owner's profile system files manually through file managers with root access may lead to the device being "bricked" and unable to boot system.

Standard method of removal via factory reset

The most reliable and safe way to “remove” the current administrator is to initiate the process of completely clearing the data. This method not only removes the user, but also returns the device to the state it was in immediately after leaving the manufacturing plant. As a result of this operation, the owner's old profile disappears, and when you turn it on for the first time, the system will offer to configure the device as new or restore data from a backup.

Before starting the procedure, it is critical to create backup copies of all significant data, since the process is irreversible. Photos, contacts, messages and installed applications will be lost forever. To save information, it is recommended to use cloud services Google Drive or transfer files to an external drive via a computer.

The reset is carried out through the settings menu. The path may differ slightly depending on the manufacturer's shell (MIUI, OneUI, ColorOS), but the general logic remains the same for all versions Android. You need to find the section responsible for recovery and reset, and confirm the action by entering a PIN code or pattern key.

After confirming the operation, the device will reboot and begin the process of clearing memory partitions. This may take from a few minutes to half an hour depending on the storage capacity and drive speed. When the process is complete, you will see the initial setup screen, where the old user will no longer exist.

Using Recovery mode for a hard reset

In situations where access to the settings is impossible due to a forgotten password, system freeze or software errors, recovery mode is used Recovery Mode. This tool allows you to perform the so-called Hard Reset, which forcibly deletes all user data, including the administrator profile, bypassing the operating system interface.

To enter Recovery mode, you must use a combination of physical buttons on the switched off device. Most often this is a combination of the power button and the volume down key, but the combinations may differ for different smartphone models. For example, on devices Samsung often you need to connect to a computer via USB while pressing the buttons.

Navigation in the Recovery menu is carried out using the volume buttons, and selecting an item is done using the power button. You need to find the item Wipe data/factory reset and confirm the choice. The system may request additional confirmation, requiring you to enter the word yes or select the confirmation item again.

Recovery Menu:
- Reboot system now
- Apply update from ADB
- Wipe data/factory reset <-- Select this item
- Wipe cache partition
- Mount /system

What to do if the Recovery menu is in Chinese?

If you get to a menu with hieroglyphs, do not panic. Typically the reset point is second or third on the list. You can try to navigate by the trash can icon or use a translator through the camera of another phone to identify the desired line before confirming the action.

After executing the cleanup command, you must select the item Reboot system now. The device will reboot and the user deletion process will be completed at a low file system level. This method guarantees the removal of all traces of the previous owner, but also erases all personal files.

Removal through settings for developers and ADB

For users with technical knowledge, it is possible to manage profiles through USB debugging and tools ADB (Android Debug Bridge). This method allows you to send commands directly to the system, bypassing the GUI, and in some cases gives more flexible control over users.

To use this method, you must first activate developer mode. To do this, go to Settings → About phone and quickly click 7 times on the item Build number. After a notification appears that you have become a developer, a new section will appear in the settings menu For developers.

In this section you need to activate the switch USB debugging. Then connect your smartphone to the computer on which the .platform-tools package is installed. Through the command line, you can send a command to delete a specific user if the system allows you to do this without superuser rights, although for the main profile this rarely works without Root.

• 📱 Connect the device to the PC and allow debugging on the smartphone screen.
• 💻 Open a terminal on the computer and enter the command adb devices to check the connection.
• ⚙️ Try running the command adb shell pm remove-user 0 (works only on some custom firmware).
• 🔄 If the command is rejected, use adb reboot recovery to enter the mode recovery.

It is worth noting that modern versions Android have significantly enhanced protection against such interference. The command to delete a user with ID 0 most often returns a security error. However, this method is useful for deleting minor profiles that for some reason are not deleted through the standard settings menu.

Features deletion on devices with root access

Having superuser rights Root opens access to system files and databases, which are usually protected from modification. On rooted devices, deleting the owner's profile is theoretically possible through direct editing of system tables or the use of specialized manager applications such as Titanium Backup or console utilities.

However, even with Root access, deleting the main user remains a dangerous operation. The system may incorrectly handle the absence of a profile with a zero ID, which will lead to a cyclic reboot (bootloop). Advanced users sometimes use the method of creating a new user, assigning owner rights to it and then deleting the old one, but this requires a deep understanding of the kernel on which Android is based. To manipulate through the terminal on a rooted device, you can use the command to obtain superuser rights, and then contact the package manager. But it is important to remember: if you delete the only existing profile, the device may stop booting until the next reset. Linux-kernel on which Android is based.

To manipulate through the terminal on a rooted device, you can use the command su to obtain superuser rights, and then contact your package manager. But it's important to remember: if you delete the only existing profile, the device may not boot until the next reset.

⚠️ Attention: Obtaining root access in itself will void the warranty on the device and may disrupt the operation of banking applications and services with a high level of protection (Google Pay, bank keys).

Removal method	Required rights	Data safety	Risk of software damage
Reset in settings	Standard	Full removal	Minimal
Recovery Mode	Physical access	Full removal	Low
ADB commands	USB debugging	Depends on the command	Medium
Root manipulation	Superuser	Custom/Full	High

FRP problem and Google blocking account

When the main user is deleted through a reset, the protection mechanism FRP (Factory Reset Protection) is triggered. This is a security feature designed to protect your device from theft. If a Google account was entered on the device before resetting, then after the reboot the system will require you to enter the password for this account to confirm ownership.

This means that simply deleting the user does not eliminate the link to the Google account if the procedure is performed incorrectly. To correctly transfer the device to the new owner, you must first manually delete the account from the settings (Settings → Accounts → Google → Delete account), and only then perform a data reset.

If you forget to do this, the new user will encounter a lock screen that cannot be circumvented using standard methods. This is not a system bug, but an important security feature. In such cases, restoring access is only possible by submitting the device purchase receipt to the manufacturer's authorized service center.

Frequently asked questions and answers (FAQ)

Is it possible to remove an administrator without losing all photos and contacts?

Unfortunately, no. Since the administrator profile is the main carrier of user data in the system, its deletion is technically only possible through a complete wipe of the data section. The only way to save information is to first create a backup copy on external media or in the cloud.

What to do if the phone requires a password from the old account after resetting?

This FRP protection worked. You need to enter the login and password for the Google account that was synchronized on the device before the reset. If you do not remember the data, you will have to use the procedure for restoring access through the Google website or contact a service center with documents on the phone.

Will the second user be deleted if I reset the settings of the main one?

Yes, a full reset to factory settings (Factory Reset) clears the entire user data section. This affects all users, including guest modes, second space, and all installed applications. The device will return to its original state.

Is it safe to use apps to reset FRP from a computer?

Using third-party software to bypass FRP protection carries high risks. Such apps often contain malware, can be unstable on new versions of Android and can potentially damage the device. It is recommended to use only official access restoration methods.

Is it possible to make a second user an administrator in order to delete the first one?

In the standard Android implementation this is not possible. The system allows only one owner (User 0). Secondary users always have limited rights and cannot upgrade their status to the level of the main administrator without flashing or complex modifications of the system.