The vivo S9 upgrade failed, and the vivo S9 charging slowed down after the upgrade

Please press and hold the power button for more than ten seconds to force restart and try, if it still doesn't work, it is recommended to try Shuangqing, you can press and hold the volume up button + power button at the same time, wait for the word vivo to appear on the phone, let go of the boot button, continue to press and hold the volume up button until the robot interface appears, select wipe data factory reset and then press the power button, wait for the interface to jump, and then select reboot system now to restart the phone. Doing this will result in the loss of all the data on your phone, including installed apps, books, text messages, etc. If it still doesn't work, please also take your mobile phone to our after-sales service center to deal with it, the address of the after-sales service center and **You can enter the home page of vivo official website - service - outlet inquiry - inquiry.

After rooting, it will definitely affect the upgrade of the phone.,If it doesn't affect,It's definitely fooling you.。。

In fact, there is no need to upgrade, there are many problems after upgrading.

The vivo S9 is slower to charge after upgrading.

Reasons and solutions for vivo fast charging to slow charging: 1. First of all, you can check whether the mobile phone is turned on and turn on the engine flash charging first, if it is not turned on, it will also affect the speed of the mobile phone charging slowdown, in the settings in the mobile phone, click and find the "dual engine flash charging", and turn on the function The mobile phone charging will become very fast. 2. Confirm whether you are using the original charger, if you are not using the original charger, it may lead to a mismatch, but the charging speed of the mobile phone will become very slow.

3. In the process of charging the mobile phone, it is best not to use the mobile phone or to play **, if you play with the mobile phone while charging, or play ** at the same time, this will prolong the charging time of the mobile phone, and it will naturally charge very slowly. 4. Confirm whether there is poor contact during the charging process of the mobile phone, which may also cause the charging speed to become very slow, at this time you can replace the socket and try again, if it is this problem, you must quickly replace the data cable or charger. 5. You can check whether there is a foreign object blocked in the charging interface of the mobile phone, if there is a foreign object blocked, you can use a cotton swab to clean it up and then try to charge, or you can try to restart the mobile phone to see if it can be restored.

vivo X9 mobile phone is updated from time to time, if the new version is pushed, it can be detected in the phone settings - system upgrade; The system upgrade is mainly optimized and finely adjusted for the previous version, improving system compatibility and optimizing system performance; It is recommended to update your phone to the latest version.

The steps to detect the update are as follows:

1. Find the settings icon in the desktop of the phone and enter the settings.

2. Enter the settings interface and click on the system upgrade option.

3. Detect the update in the system upgrade.

There are two ways to upgrade your vivo S9:

Upgrade via wifi**: Enter Settings - > General - > System Upgrade - >Check for Updates Now-, according to the prompts** Upgrade package, click Verify and Install, the phone will restart and automatically enter the upgrade mode.

Use vivo assistant to upgrade: open vivo assistant, connect the phone to the computer, after the tool detects the mobile phone, it will access the server, when it detects that there is new software on the server, it will display the word "new" on the "mobile phone upgrade" button, click the button, and follow the prompts to upgrade.

The failure to upgrade may be due to improper operation methods.

BBK vivo s9, home screen parameters main screen size: inches, home screen material: ips, home screen color: 16 million pixels, home screen touch screen: capacitive screen home screen, multi-touch: support, light sensing: support.

Hello. If you try to upgrade again, there are two ways to self-upgrade your phone:

1) You can upgrade via wifi**: enter Settings -> General -> System Upgrade ->Check for updates now-, according to the prompts**Upgrade package, click Verify and install, and the phone will restart and automatically enter the upgrade mode.

On the computer** After the Cheng bend rock sequence and install it, open the vivo assistant, connect the phone to the computer, the tool detects the mobile phone, it will access the server, when it detects that there is new software on the server, it will display the word "new" on the "mobile phone upgrade" button, Yinliang click the button, and upgrade according to the prompts.

If you still can't upgrade normally, it is recommended that you take your mobile phone to the BBK after-sales service center to restore the system for free.

BBK vivo team will serve you wholeheartedly, if you have any questions, you can ask us at any time.

Have a great day.