After the vivo phone changed the font with root permission, I deleted the root, but why can t the fo

Hello! Our smartphones do not have root privileges at the moment. There are two main reasons:

After the root is opened, it may cause problems such as abnormal use of the phone, crash restart, etc.

From a security point of view, some illegal programs hijack the communication function and desktop of the mobile phone without your knowledge, which will cause the loss of users' personal privacy and fees. And it cannot support the mobile phone or vivo assistant for ** upgrade. Therefore, it is not recommended to operate this function, otherwise it is easy to bring serious consequences, and the hardware problems caused by root are not warranted after sale.

Enter this link, click "Service" - search for your phone model in the search box, then select the model, click on the resource ** - firmware upgrade for the **ROM package. This is the tutorial, you can take a look. Instructions for firmware upgrades.

Please remember to back up your important information before upgrading) If it still doesn't work, you can go to the after-sales service center to test and deal with it. You can go to vivo official ** to check the address of the after-sales service center.

The font has been flashed into the system, that's it.

1.In "Settings", click "Font";

2.Then click "Font Type" on the "Font" interface, as shown in the figure below

3.Finally, select the corresponding font type and click OK, as shown in the following figure:

You need permission to change the font of your phone, so you have to.

Get your phone rooted.

Under the root of the phone, it will not have any effect on the phone.

You can use the kingroot in the application treasure.。

Connect your phone to your computer and you can use the tool to your phone.

root, and the permission will be obtained on the phone.

Then you can change the font of the mobile phone.

Teach you to change the font on your vivo phone.

It may be that your root privileges are not fully obtained.

This is what people often call pseudo-root

This is definitely not possible to change the font.

You can connect your phone to your computer.

Then use a software like the computer noisy version of the application treasure, which is more reliable than Qi Bang's head, to regain permissions.

It's also possible that the font software you're using doesn't support your phone.

In this case, you can change to another font high number software.

I hope I can help you solve the problem.