What is the reason for the poor effect of wireless projection? Although the wireless projection technology of

has become more and more mature, most people are still inseparable from the common problems of poor projection effect, such as “the projection picture will spend the screen”, “the picture sometimes gets stuck or interrupted” and “the picture delay is relatively high”. The effect of

and

is actually related to software, hardware and network. After understanding the reasons, we will find that 90% of the problems can be easily solved by ourselves.

1 first check whether it is the latest software

to solve the problem of poor screen projection effect, we can start with “software”, that is, “program”. Why should

and

start with software? Because most of the screen projection effect is poor, the problem is only caused by the software is not adjusted well.

and

manufacturers generally provide these problem repair services for their products for free for a long time, which is also the lowest cost way for users to solve problems. The most common way of

and

is “upgrade”, including upgrading TV firmware, projector firmware, router firmware, mobile phone application, etc.

and

firmware are programs and the soul of hardware devices. Because some hardware devices have no other software except firmware, firmware also determines the function and performance of hardware devices.

and

keep the firmware of televisions, projectors, routers and other devices up-to-date for a long time, and most commonly known “bug” problems can be solved.

2 projection screen may be related to the configuration of TV sets.

now there are more and more smart TVs on the market. They have rich functions. They can install all kinds of third-party applications with their own Android system, and some smart TVs come with their own third-party projection tools, which can be said to “combine beauty and talent”.

and

, but in fact, it is not necessarily a smart TV that can be used happily. For a TV with too weak chip, the use experience will be greatly reduced.

common TV CPU chips rank

A73 quad core (the dominant frequencies are 1.3GHz / 1.5GHz and 1.8GHz, the higher the better) A73 dual core + A53 dual core 1.7GHz processor (you can see whether the dominant frequency is 1.7GHz, the higher the better) A55 quad core 1.9GHz processor (the performance is close to that of A73 dual core + A53 dual core 1.7GHz processor, and there is also 1.7GHz version) A53 quad core 1.7GHz processor (you can ask whether the dominant frequency is 1.7GHz, the higher the better) A73 dual core processor (not recommended for purchase, usually the old model or e-waste)

image has a connection mode of “point-to-point” in the same screen. For example, the “wireless display” function of using miracast protocol in Android mobile phone is to connect “mobile phone” and “TV or projector” directly without going through router, which has higher data transmission efficiency and lower delay.

03 connected network can also check the “point-to-point” connection mode of mirror same screen mentioned above in

. In addition, mirror same screen can also be connected to TV through “Lan”.

,

, “mobile phone” → “router” → “TV or projector”,

and

in this connection mode, the stability of the projection screen is closely related to the router. The wireless standard of some old routers in

and

is 802.11n. The 5GHz Wi Fi signal transmitted by the router based on this old standard specification is still “pseudo 5g”, and its network parameters are not up to standard, so it will also affect the connection effect of mobile phones, TVs, projectors and other devices, thus affecting the efficiency of picture transmission.

and

routers supporting MU-MIMO technology can work with multiple devices at the same time; In particular, it is worth mentioning that since multiple signals do not interfere with each other, resources are maximized.

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once the TV with lower configuration is used to mirror the high-resolution content on the same screen, the picture will be stuck, flower screen and high delay due to the poor performance of the chip.

and

but the projector generally does not have this problem, because the built-in chips of the projector are specially designed to handle picture transmission and display.

3 connected networks can also check the “point-to-point” connection mode of mirror same screen mentioned above in

. In addition, mirror same screen can also be connected to TV through “Lan”.

,

, “mobile phone” → “router” → “TV or projector”,

and

in this connection mode, the stability of the projection screen is closely related to the router. The wireless standard of some old routers in

and

is 802.11n. The 5GHz Wi Fi signal transmitted by the router based on this old standard specification is still “pseudo 5g”, and its network parameters are not up to standard, so it will also affect the connection effect of mobile phones, TVs, projectors and other devices, thus affecting the efficiency of picture transmission.

and

routers supporting MU-MIMO technology can work with multiple devices at the same time; In particular, it is worth mentioning that since multiple signals do not interfere with each other, resources are maximized.

so sometimes the screen projection effect is not good. In fact, don’t worry too much. 90% of the difficult and miscellaneous diseases can be solved in three steps!

1. You can try to upgrade the device firmware first;

2. Check whether the router is too old;

3. Check whether there is a problem with the TV or projector.

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