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List of the contents of this article:

• 1, How to forcibly restore the Android system to the factory?
• 2 、 How to restore the old version after the mobile phone is upgraded?
• 3, How to restore the original system after upgrading the mobile phone system?
• 4, How about Android phones?Restore factory settings
• 5, How to restore factory settings for Android phones
• 6, Where is the factory reset of Android phone

How to forcibly restore the Android system to the factory?

1. Solution to the dead machine I: Restart the mobile phone. Press the power button of the mobile phone for a long time (more than 10 seconds), so that the mobile phone can automatically shut down and start up; Method 2: Press the power button and the sound up button of the mobile phone at the same time in the shutdown state.

2. If the mobile phone cannot enter the system interface normally, you can forcibly restore the factory settings by entering the recovery mode. The specific steps are as follows: After shutting down, press and hold the "Power Key" and "Volume Down Key" at the same time until you enter recovery mode.

3. Restore all settings and clear all data: enter Settings--System Management/More Settings--Backup and Reset/Restore Factory Settings--Restore All Settings, Clear All Data.Enter the recovery mode, select to clear all data, and then restart the device.

4. There are many ways to restore the factory settings: the simplest is to use the "Restore Factory Settings" function in the mobile phone settings and follow the prompts. Enter *#7780# - mobile phone soft reset (save the phone number, information, incoming and outgoing number, etc. after the machine). Enter *#7370#, the original password is 12345.

How to restore the old version after upgrading the mobile phone?

1. How to restore the old version of Android phone: open the mobile phone, find the mobile phone settings, click and enter. After entering, find more settings, click and enter. In the more settings interface, click Restore Factory Settings. Click to clear all data to enter the next interface.

2. Due to the high requirements of the upgraded new system for mobile phone hardware, some mobile phones may be stuck and not running smoothly, so users who encounter this situation want to downgrade the system. So what should we do? In this regard, the following article will share with you the method of returning the previous version of the Apple system.

3. First, open the settings icon on the mobile phone desktop. After clicking Enter, select more options under the regular page in the jump-up page. After entering More, click the factory reset option at the top of the option.

How to restore the original system after upgrading the mobile phone system?

If you can't restore the old system through Huawei Mobile Assistant, you can try to use the return package. The return package is a software package that can downgrade the system, which can be downloaded from Huawei's official website or third-party website. The steps to restore the old system using the return package are as follows: download the return package of the old system version that needs to be restored on Huawei's official website or a third-party website.

Restore after mobile phone updateThe method of the old version is as follows: Use the system recovery function that comes with the mobile phone: Many mobile phones have the system recovery function, which can be found in the settings.

After the OPPO mobile phone system is upgraded, the old version can be restored by restoring the factory settings. The specific operation steps are as follows: open the "Settings" icon on the mobile phone desktop. In the jumped page, select the "More" option under the "General" page. Click the "Restore Factory Settings" option at the top of the option.

How to restore factory settings for Android phones

1. The operation path of some models is: (Settings More Settings Restore Factory Settings Clear All Data) or (Settings More Settings Backup and Reset Clear Except for all data).If you need to empty music, pictures and other user data, please select "Format Mobile Phone Storage".

2. Open the settings, click System and Update Reset Restore Factory Settings, and click Reset the mobile phone. If you have set the lock screen password, please enter the correct password and reset it according to the screen prompts.

3. At the bottom of the settings menu, select "System Restore" or similar options. Then, on the restore options page, click "Restore Factory Settings". Some mobile phones may require a password or other verification to continue operation. Step 4: Confirm and start to restore the settings.

4. First, find "Settings" in the mobile phone and open "Settings". After opening "Settings", find "Advanced Settings" and select "Advanced Settings" as shown in the figure below.After opening "Advanced Settings", find "Backup and Reset" and open it.

5. Different brands of Android phones have different methods of restoring factory settings. The following is a tutorial for restoring Huawei mobile phones to the factory. Mobile phone model: Huawei mate30 mobile phone desktop find [Settings] and click to open. After entering the setting page, click [System and Update] to enter. Then click [Reset] to enter the next page.

6. Open "Settings" on the desktop. Click "Other Settings". On other settings pages, click Restore Mobile Phone to enter. On the restore mobile phone page, click to completely clear all data to restore the factory settings.

How to restore factory settings for Android phones

1. CanCheck the following methods: Restore all settings and clear all data: Enter Settings--System Management/More Settings--Backup and Reset/Restore Factory Settings--Restore All Settings, Clear All Data. Enter the recovery mode, select to clear all data, and then restart the device.

2. The operation path of some models is: (settings, more settings, restore factory settings, clear all data) or (settings, more settings, backup and reset, clear all data). If you need to empty music, pictures and other user data, please select "Format Mobile Phone Storage".

3. Open the settings, click System and Update Reset Restore Factory Settings, and click Reset the mobile phone. If you have set the lock screen password, please enter the correct password and reset it according to the screen prompts.

4. At the bottom of the settings menu, select "System Restore" or similar options. Then, on the restore options page, click "Restore Factory Settings". Some mobile phones may require a password or other verification to continue operation. Step 4: Confirm and start to restore the settings.

5. First, find "Settings" in the mobile phone and open "Settings". After opening "Settings", find "Advanced Settings" and select "Advanced Settings" as shown in the figure below. After opening "Advanced Settings", find "Backup and Reset" and open it.

6. Android factory reset method I: Enter the mobile phone settings to restore. Generally, Android phones can find the factory settings in the settings. After clicking to confirm the restore, the phone will be restarted and wait for completion. The detailed steps are: open the mobile phone function table-settings-security and privacy-restore factory settings.

Where is the factory restore of Android phone

1. Method 1: Restore the factory settings in the settings. This is one of the most common methods. In most cases, users only need to find the factory reset option in the settings of the mobile phone and follow the prompts. The specific steps are as follows: Step 1: Open the settings app.

2. The operation path of some models is: (settings, more settings, restore factory settings, clear all data) or (settings, more settings, backup and reset, clear all data). If you need to empty music, pictures and other user data, please select "Format Mobile Phone Storage".

3. Open the settings, click System and UpdateNew Reset Restore factory settings, click to reset the mobile phone. If you have set the lock screen password, please enter the correct password and reset it according to the screen prompts.