Lenovo notebook can t be turned on after disassembly? 20

I guess it's not installed.

Disassembling and assembling a notebook requires professional equipment and experience, and the risk of disassembling and assembling the machine is too great, so it is recommended that you find a professional to help you deal with it.

In Beijing, I will help you to test for free to make sure, and it can be repaired on the same day.

If you are not in Beijing, it is recommended that you find a reputable and skilled repairer to help you overhaul.

The big brother on the third floor, this is the book, not the desktop, and the graphics card can't be removed. If the boot indicator light is always on, it means that there is nothing wrong with your power supply, and then if the hard disk light is turned on and goes out, the fan will not turn when it turns, and the hard disk is left spinning, it may be that something is burning on the motherboard, I hope this is not the case. There is also a possibility, that is, there are a lot of plugs in the notebook or something, those things are very small, and very hidden, you accidentally touched it loose when disassembling, and accidentally dropped or popped it up when you turned it on, Amen, I hope this is the case, otherwise you will be able to get to the repair point, which will cost a lot of money.

That one forgot, and it's possible that your memory module isn't plugged in tightly.

The computer boot screen does not display the following issues

1. If there is a problem with the connection of the monitor, check whether the monitor is connected correctly and whether the switch is turned on.

2. If there is a problem with the computer, observe whether the computer has a boot sound and whether it starts normally.

3. Check if there is a problem with the memory, you can try to replace the memory module, or check whether it is loose.

4. Display failure, if the above reasons are eliminated, it is a display failure, and it is recommended to send it for repair.

This one, unloading the battery and putting it in the water, taking it out, is good.

You cow... I don't have a few more parts... Take it and find a professional to take a look... Alas.

If the monitor is still on, there should be a hint of what is wrong.

Answer: Hello dear I am very happy to answer the reason why the laptop cannot be turned on after the laptop is disassembled: 1. The laptop does not have any response when it is turned on, which generally means that the boot button is pressed, and the laptop does not have any response, that is, the indicator light does not light up after pressing the switch button, the fan does not rotate, and the laptop does not respond at all. The most common occurrence in this situation is that the laptop battery is dead, or the external AC power supply is damaged or poorly connected.

Check whether it is a power supply problem, first see if the power supply is not plugged in well or there is a problem with the plug, if you are using a battery, then plug in the power supply and try again. You can go to a friend or find a power supply of the same model to try it. If it can be turned on, then it means that the external power supply is damaged, if not, then it means that there may be a hardware failure inside the laptop or the laptop boot button is out of order, in this case, it is recommended to take it for maintenance.

Check whether the key parts are looseIf the computer crashes after moving, it may be that the computer has been subjected to a lot of vibration during the movement, resulting in loose internal parts of the computer and poor contact, resulting in a crash. Open the machine and re-fasten the memory, graphics card, hard disk and other equipment. Motherboard failure:

Motherboard failure is the main reason why laptops won't turn on. It is often caused by factors such as liquid ingress of the notebook, damage, and damage to the components of the motherboard itself. Circuit Fault:

In addition to artificial liquid inlet and short circuit, most of the failures of laptops that cannot be turned on are problems with the protection isolation circuit and the failure of the boot circuit and EC peripheral circuits, and sometimes the circuit is burned out in large pieces.