Lenovo G455 black screen can t turn on, ask for help. 5

Dear Lenovo users, hello!

It is recommended that you go directly to the official Lenovo service station for testing, because you can't see the specific situation of your machine, so it is difficult to judge what the specific problem is;

IDEA Forum.

Think Forum.

Lenovo Community.

Or go to the computer city to consult the professional.,It's not a problem with the screen.,Generally not 1000.。

Poor welding of the bridge abutment. Welding with special equipment.

Summary. 1. System file configuration problems.

1. First of all, when the black screen is started and there is only the mouse, call up the task manager through CTRL+SFHift+ESC;

2. Then click "Details" on the left side of the task manager, display the full panel, select the file of task management - run a new task;

3. Then select "Browse" in the lower right corner of the dialog box that appears, and pop up the file browsing window, at this time, you can see the "This Computer" on the left side in the file browsing window, right-click on it, and select "Manage";

5. The "Computer Management" window pops up, select the local user and group user on the left, and the local user will be listed on the right;

6. Create a new administrator account, then log out, log in with the new username, and everything will be normal.

2. The graphics card driver is faulty.

To solve the problem, you need to uninstall the original graphics card driver and install the latest compatible driver. Refer to the above method to open "Manage", select Device Manager, click on the graphics adapter, uninstall the device inside and check Uninstall the driver, and then reboot into the system to update the graphics card driver.

What to do if the laptop can't start the black screenLenovo notebook G460, the black screen is nothing at all after booting up, there is no response when pressing all the keys, the cooling fan is running, the power indicator light is on when charging, and the boot indicator light is on.

1. System file configuration problems 1. First of all, when the boot screen is black and there is only a mouse, call up the task manager through CTRL+SFHift+ESC; 2. Then click "Details" on the left side of the task manager, display the full panel, select the file of task management - run a new task; 3. Then select "Browse" in the lower right corner of the dialog box that appears, and pop up the file browsing window, at this time, you can see the "This Computer" on the left side in the file browsing window, right-click on it, and select "Manage"; 5. The "Computer Management" window pops up, select the local user and group user on the left, and the local user will be listed on the right; 6. Create a new administrator account, then log out, log in with the new username, and everything will be normal. 2. Graphics card driver failure The solution is to uninstall the original graphics card driver and install the latest compatible driver to solve the problem. Refer to the above method to open "Manage", select Device Manager, click on the graphics adapter, uninstall the device inside and check Uninstall the driver, and then reboot into the system to update the graphics card driver.

I pressed three keys and there was no response at all.

I pressed three keys and there was no response at all.

If the boot circuit of the notebook motherboard fails, such as clock, reset, power supply, MOS tube, etc., it may cause failure to boot, black screen treatment: It is recommended to send it to the after-sales service or repair shop to repair the motherboard.

Approximate cost of repairs.

Hello, 400 1000.

Don't care so much, just reinstall the system and try it, if it still doesn't work, it's a hardware problem, then you need to find after-sales!

1. The memory and graphics card are oxidized, resulting in poor contact with the memory slot or graphics card slot, resulting in a black screen, the probability of it appearing a black screen accounts for 80%, the treatment method is to turn off the power, turn on the compartment, dial out the memory, and the graphics card, and align the memory and the graphics card gold finger (that is, where there is a copper sheet) with an eraser back and forth at least 6 times, blow the ash, and then plug it back, and the boot is generally OK.

Second, there is a problem with the connection cable between the host and the display, and the data cannot be transmitted, so the screen will naturally go black.

Third, it is a virus in the computer, there is a problem with the operating system, and there will be a black screen.

Fourth, hardware problems, send for repair.