vivo X510T has a blue person s avatar flashing in the upper right corner of the screen

Hello, this function is a more intimate and practical function in the smart body of vivo mobile phone: smart keep the screen on. The benefits are:

When you face the screen, the screen won't dim. If you don't need it, you can go to Settings - Intelligent Somatosensory - Smart Screen Bright, and turn off Smart Keep Screen On.

What do you mean by "little sigh", and can you take a screenshot of it? So that we can answer it conveniently.

1. This is the HIFI sound effect turned on.

2. HiFi sound effects only take effect in earphone mode.

3. Dial out the earphones to turn off the HIFI sound.

Hi-Fi is an abbreviation for English high-fidelity, which directly translates to high fidelity, and it is defined as: a replayed sound that is highly similar to the original sound. It means that the sound quality is very high.

1. Hi-Fi definition:

Hi-Fi is an abbreviation for high-fidelity in English, which literally translates to "high fidelity", and its definition is: a reproduced sound that closely resembles the original sound.

To evaluate whether a sound system or equipment meets the requirements of high fidelity, it should generally be carried out by combining subjective listening evaluation and objective index testing, and the objective test index should be the main basis. Because the performance indicators of the instrument test equipment can be obtained intuitively for reference and comparison, which is undoubtedly the most scientific and trustworthy.

2. Structural form:

The Hi-Fi audio system can be divided into all-in-one, package and combined in terms of structure.

The all-in-one audio system is a combination of various functional equipment and speakers in a chassis, which cannot be disassembled at will, and this kind of machine is generally a low-end popular machine.

The packaged sound system is designed by the manufacturer to combine various equipment sheets into a set that can be detached from each other.

It didn't work at all, turned off the wifi handover as well.

Hi-Fi is an abbreviation for "high-fidelity", which means: the reproduction of sound that is highly similar to the original sound, that is, the original sound quality of the lossless sound source is presented as much as possible to achieve the best fidelity effect.

The mobile signal sign indicates that you are not using a 4G network, 4G>HD>3G

When the HD symbol appears on your mobile phone, it means that the Volate service has been successfully activated and you can use the VoTen service normally. Volte stands for Voice Over LTE and is based on:

Me too, popped up last night.