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Anonymous users2024-02-07Dear Lenovo users, hello!
Hello, if your computer is caused by static electricity, it is recommended that you release static electricity and troubleshoot the problem. The steps to release static electricity are:
Unplug the power supply and other external devices, press and hold the power button for about 5 seconds, repeat, plug in the relevant wires after a few minutes, and finally plug in the power cord to check whether the normal boot detection is normal.
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Anonymous users2024-02-06This is a common problem of Lenovo computers, design defects, there is no way to solve it, every time you turn it on after shutting down, you can only rely on luck, our company's Lenovo all-in-one machine is this problem, everyone dare not shut down, for fear of affecting the work!
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Anonymous users2024-02-05It may be that the electrostatic discharge has broken down the circuit board.
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Anonymous users2024-02-04Take Lenovo G40-70, Win10 system as an example, the solution to the computer static protection can not be turned on is as follows:
Disconnect the power supply. The first thing to do is to unplug the computer's power cord, remove the battery, and secure the laptop.
It is completely unpowered.
Discharge static electricity. Press the power switch 6-8 times repeatedly, and continue to press and hold for 6-8 seconds each time to release static electricity.
Boot up. Then connect the power supply and try to turn it on, if it can be turned on normally, it means that the fault is solved, if it still can't be turned on normally, it may be that the motherboard circuit is damaged, it is recommended to send it to the after-sales service for maintenance.
To completely eliminate the hidden danger of electrostatic interference, one is grounding, and the other is direct power failure. First of all, you must buy a three-hole socket, the end of the socket head connected to the household power supply must also be three-hole, the left and right holes are the live wire and the neutral wire, and the middle is the ground wire, which is used for grounding and conducting static electricity. Disconnect the power supply directly from the socket strip after using the computer.
Unplug it so that there will be no more problems with electrostatic protection in the future.
This answer applies to most models of Lenovo computers.
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Anonymous users2024-02-03It is recommended that you re-plug the battery to see if there is still this problem, if you re-plug and the battery of the machine is sufficient, it is recommended that you contact the Lenovo repair center directly for testing and processing.
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Anonymous users2024-02-02It is estimated that the power supply circuit part of the motherboard is damaged by a short circuit, and as soon as it is powered on, it will cause the power supply of the all-in-one machine to start short circuit protection.
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Anonymous users2024-02-01Multimeter voltage level, test the power interface of the motherboard, and see if there is any voltage
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Anonymous users2024-01-31Analysis: Most likely memory contact.
Treatment: Shut down (if short press the power switch is invalid, press and hold the switch until the power indicator goes out or directly unplug the power cord) Power off and open the case, replug the memory module, and wipe the gold finger with an eraser in one direction (the back of the thumb fingernail is also fine), if possible, it can also be installed in different memory slots, and then turned on after installation (before operation, you should also touch the wall with both hands to release your static electricity or wear anti-static gloves). If you can't do it, then it's simpler:
Palm or kick the chassis once or twice (pay attention to the location: the front of the shell on the left and right sides of the chassis that does not have an interface at the back; Attention said: Don't push too hard, of course, don't be weak).
The above may need to be repeated, and if it doesn't work, you need to replace the memory module. If you have more than two memory modules, you need to test them one by one.
The inability to print has nothing to do with whether it is an all-in-one machine or not, but has something to do with the computer itself. >>>More
If it is not displayed, press Ctrl+Alt+Delete at the same time to pop up the task manager, if you only need to shut down, you can directly click to shut down, and it's OK If you want to repair the Explorer program, click on the application, and right-click the stand-alone mouse in that blank area, create a new running task, open the browser, **An Explorer program, after decompression, put it in the C drive, and the windows directory is OK PS: All programs can be opened in the task manager.
Auto-standby is not the same as shutting down, you mean auto-standby and then waking up, right?
Lenovo brand machine is trouble-free, optimistic about the model, pay the money and get the goods, the all-in-one machine is superior in saving space, yes, on this one advantage, the disadvantage is that the heat dissipation is very poor, it is inconvenient to repair and upgrade the parts yourself, ordinary Lenovo desktops are superior in saving trouble, and what you buy is after-sales. Of course, the all-in-one machine also has the advantage of after-sales. But I've assembled so much for others, and I've never felt anything bad about the after-sales of the assembled machine.
Lenovo M7250 fax function If it is not a special requirement (such as dialing an external line needs to add 0, or extension**, etc.), you can directly plug in the **line and send it. There are two ports on the back of the device, and if you can't tell the difference, plug them one by one, and there are not many options. The correct way to insert is to insert it into the mouth of the ** line. >>>More