Ouch hey! Are newcomers who are new to LED screens often messing around with this "WiFi switch"? Last week, a boss who runs a milk tea shop complained to me: "I bought a smart screen for a lot of money. I just can't connect to the Internet if I search all the buttons! "Today we broke it apart and broke it and said, you will be able to transform into a "Switch Hunter" after reading this article!

1. Don’t rush to remove the screen! These places are easiest to hide switches

​​Soul Question: Do WiFi switches have to be physical buttons? ​ ​
You may not have imagined that 90% of smart LED screens on the market now do not have physical WiFi switches at all! There are two main control methods:

• ​​Software control​​: Find the "Network Settings" option in the system settings menu (usually looking like the earth icon)
• ​​Combination buttons​​: Press and hold the "menu key + confirm button" for 5 seconds to activate the wireless module
• ​​Hide interface​​: Some models have a stamp-sized reset hole next to the control card (stamp with a toothpick for 5 seconds)

To give a real case: When installing screens in the mall last year, the electrician used the reset hole as a screw hole, almost breaking the circuit board. So,​ ​Reading the instruction manual first is ten times more reliable than fumble.​​！

2. The eight major truths that cannot be connected to the Internet

​​The question is: Why can't I connect to the switch even though I have turned on? ​ ​
Here is a troubleshooting table for you:

Let me tell you about the inside story of the industry: Some engineers have turned off the wireless function by default in order to save power. Last month, 20 screens in a supermarket chain collectively "lost contact" and finally found that the main control switch was turned off during installation.

3. Step-by-step teaching: Get smart networking in 3 minutes

Don’t panic! Follow this flowchart:

1. ​​Power on preheating​​: Wait 3 minutes after booting up to complete the system self-test (the control card indicator light turns green)
2. ​​Activate mode​​：
   • New model: Scan the code to download and control the APP to automatically match
   • Old model: enter the default password "888888" or "admin"
3. ​​Signal test​​: Check whether the device has obtained the IP address in the backend of the router
4. ​​Remote verification​​: Use 4G network to log in to the cloud platform to see the status

I remember that last year I helped the school install electronic class cards, and the teachers couldn't connect to the Internet. Later I found out that the router set a whitelist and added the display MAC address and solved it immediately. ​ ​Sometimes the problem is not on the screen, but on the network environment​​！

4. These anti-human designs should be taken care of

Be sure to ask these details before buying a screen:

• ​​Standby power consumption​​: Screens with WiFi module consume 3-5 degrees more power per month
• ​​Encryption protocol​​: The screen that only supports WPA2 cannot connect to the WPA3 router
• ​​Firmware version​​: Models before 2018 may not be compatible with 5G band

Two days ago, I encountered a funny and hilarious thing: the customer bought a new screen that could connect to WiFi but could not pass the files. Finally, I found that the manufacturer closed the FTP port. So,​ ​Functional castration is more terrible than lack of functions​​！

5. My private advice

I have to say that buying a smart LED screen now is like buying a smart home. You can’t just look at the hardware parameters, but you have to see whether the ecosystem is complete or not. Three special reminders:

1. Choose a cross-platform control that supports cross-platform control (mobile phones, computers, and tablets can be managed)
2. Confirm that you can remotely upgrade the firmware (to prevent it from becoming electronic waste after two years)
3. It is best to have dual-band WiFi (2.4G strong wall penetration and fast 5G transmission)

What do you think? Now the high-end screens are starting to play "sensorless connection", just like Bluetooth headsets, they are close to automatic pairing. But the old saying goes, "Learn to climb before you can leave." If you understand these basic operations, you won't be afraid of any cool features!

If you want to talk about your personal point of view, I think the Internet connection method of LED screens will definitely become more and more "fool-like". Maybe one day I will just shout "small screen, small screen, and WiFi" directly. But now, we still have to understand these "spoken secrets" first. Do you think this is the reason?

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