Have you ever encountered such embarrassment? The mall event began soon, but yesterday's date was displayed in the lower right corner of the large screen; the concert countdown was almost 15 minutes, and the director was sweating profusely. What’s even more annoying is that the clock setting entrance of some LED screens is like playing escape room - it’s obvious that they can’t find the modification entrance even after following the instructions! Today we will break it apart and talk about this issue that has driven countless novices crazy.

1. Three major culprits of inaccurate time

Don’t rush to blame the equipment, 90% of the time error is caused by human operations. Last week, a supermarket chain made a joke: 18 screens displayed "2020 promotional information" at the same time, and finally it was discovered that the electrician set the time zone of the main control computer to Greenwich time. I have listed a table of FAQs:

The key point is:Don't just disassemble the machine and find the clock chip​! Nowadays, when mainstream equipment is used to correct software, hard modification will trigger anti-tamping and locking programs. Last year, a cinema scrapped the curved screen worth 800,000 yuan, which is a bloody lesson!

Second and third major control system modification secrets

The operating interfaces of different brands vary greatly, but they will never be separated from their roots. I have sorted out three sets of solutions according to the control system type:

​​1. Software-controlled type (most common)​​

• Open the "Hamburger menu" in the upper right corner of the control software (three horizontal line icons)
• Turn off automatic update in "System Maintenance" → "Clock Synchronization"
• Manually enter the time zone code (+8:00 in China)
• ​Key Points​: After the modification, you must restart the receiving card before it will take effect

​​2. Physical button type (exclusive to old equipment)​​

• Press and hold the menu key for 10 seconds to enter the project mode (there will be a beep prompt)
• Use the arrow keys to select options starting with "CLK"
• Special note: Please select "YYYY-MM-DD" to modify the date format.
• ​Pit prevention guide​: This type of equipment may be restored to factory settings after power outage. Remember to save it to the 7th storage area after modification.

​​3. Mobile APP model (new model standard)​​

• Don't rush to operate after scanning the code to bind the device
• Turn off the "cloud synchronization" function first (usually in Settings → Network Services)
• The time calibration page must be turned off "High Precision Mode" before manual input
• ​Industry cold knowledge​: Android system is more likely to experience time zone drift than iOS

3. Help! What should I do if I am not sure after the correction?

Last month, I helped my friend deal with a strange case: Beijing time is clearly set, but the screen shows Moscow time. Later it was discovered that the router DNS was tampered with causing the NTP server to point to the Russian node. When encountering this kind of metaphysical problem, try these three tricks:

1. ​​Online schooling time method​
   After unplugging the network cable, modify the time, and then plug in the cable after the modification (avoid automatic synchronization)

2. ​​Hardware clock reset​
   Find the button battery on the control card, remove it and let it sit for 30 seconds before reinstalling it (equivalent to discharge the clock chip)

3. ​​GPS Time-to-Time Black Technology​
   When high-end equipment supports Beidou/GPS dual-mode pairing, press the setting key in the empty door of the building for 10 seconds to activate it.

There are interesting data sets:​82% of the time error problem can be solved by changing the NTP server address​. It is recommended to use "ntp.ntsc.ac.cn" as the national timer address, which is much more reliable than the default Google time server.

4. Guide to avoid pits when purchasing

Want to avoid time issues at the root? Remember these three parameters:

• ​​Supports Beidou/GPS dual-mode timing​(Error <0.1 seconds)
• ​Built-in supercapacitor clock module(You can walk for 72 hours if you lose power)
• ​​System permissions hierarchical management(Prevent misoperation)

Editor's opinion: To be honest, some manufacturers now hide basic functions deeper than safes, and they have to force you to buy their annual service packs. I want to say it,​The device that can open up complete system permissions is the true conscience​​, you said right?

for more product information and pricing, please contact us .