How to exit the mobile phone when it enters the engineering mode?

If you use a vivo mobile phone, there will be an engineering mode processing method on the desktop:

1. Press and hold the "Project Mode" icon on the desktop for 3 seconds to close it;

2. Try to forcibly restart the device:

① models of ①Funtouch OS 3.2 and subsequent systems: press and hold the "power button" and "volume down button" simultaneously for more than 10 second;

② Press and hold the top round key 10 second or more to forcibly restart the phone (NEX 3/NEX 3S is applicable);

③ System model before ③Funtouch OS 3.2: Press and hold the "power button" for more than 12 seconds.

3. Connect the power supply, enter the recovery mode-install the system software-confirm the latest version of the network update-download and install the latest version, and connect the available WiFi-download and install-wait for the installation to be completed, and then restart;

How to enter recovery mode:

1), folding screen: start the operation in the off state, press and hold the "power button" and "volume plus button" for about 5 seconds at the same time, enter the fast boot mode, press the volume button to select "enter recovery", and press the power button to confirm the entry.

2) For the equipment listed after September 2065438+2007, press and hold the "power button" and "volume increase button" for about 5 seconds when the power is turned off, and enter the quick start mode. Press the volume button to select "Enter Recovery" and press the power button to confirm entry. .

NEX？ 3/NEX？ 3S: Press and hold the top round key for about 1.5 seconds in the power-off state, then press and hold the volume plus key to enter the quick start mode, and press the volume key to select "Enter Recovery"? Press the power button to confirm the input.

4) For models listed before September, 2065438+2007, press and hold the "Power Button" and "Volume Plus Button" for about 5 seconds in the off state to enter the recovery mode.

4. After backing up important data, enter Settings-System Management/More Settings-Backup and Reset-Clear all data.

Note: This operation will delete all data in the device, including installed software, SMS, address book, memos, pictures and music. It is recommended to make a backup before operation. Backup: enter cloud service-device cloud backup-backup data type-system data-return-immediately back up some system settings and desktop layout that can be backed up; Cloud service-data synchronization-turn on WLAN and Bluetooth to synchronize data to cloud service.

If the above methods can't help the recovery, it needs to be detected and handled by the customer service center (customer service center address: go to vivo official website /vivo Mall APP-My-service outlets/after-sales outlets-select provinces and cities to inquire about the customer service center address). It is suggested to call the customer service center in advance to confirm the relevant matters and understand that the working hours are coming soon, so as not to delay precious time.