Black screen won’t power up

[Cig3]

Black screen won’t power up. Plug good. Light on where cord enters lap top 14

[Hawks_Eye]

Hi @Cig3,

Welcome to the HP Support Community! 

Thanks for posting your query! We're here to help you get back up and running.

I understand your laptop is not powering on and how frustrating it could be.

Let us try a few steps to troubleshoot and isolate or resolve the issue.

Remove devices and perform a hard reset.

To determine whether you need to contact HP or troubleshoot startup issues, perform a hard reset.

Note: A hard reset does not affect data saved on your computer.

Turn off the computer.

Disconnect the AC adapter.

Remove memory cards from the card reader slot.

Disconnect all nonessential devices such as printers, scanners, external hard drives, and USB flash drives.

Note: Do not disconnect your mouse, keyboard, or monitor.

With the AC adapter unplugged, press and hold the power button for approximately 20 seconds.

Reconnect the AC adapter, and then turn on the computer.

Note: Be sure that you use the AC adapter that was shipped with the computer.
 

If the computer starts, reconnect the devices one at a time to determine which disc or device is causing the problem, and then continue troubleshooting. 

If Windows does not start but the screen turns on, continue troubleshooting to test the hardware for failures.

Use the following hardware test procedures.

Run the Fast Test (about 4 minutes).

When Windows doesn't start, begin the hardware diagnostics by running the Fast Test. The Fast Test is separated into a 1st pass and 2nd pass, with each pass running multiple tests.

Hold the power button for at least five seconds to turn off the computer.

Turn on the computer and immediately press esc repeatedly, about once every second. When the menu appears, press the f2 key.

On the HP PC Hardware Diagnostics (UEFI) main menu, click System Tests.

If the diagnostics are not available when using the F2 menu, run the diagnostics from a USB drive. To download the latest version of the diagnostics, go to the HP Hardware Diagnostics website. For instructions, see HP PCs - Testing for hardware failures.

Click Fast Test > Run once.

While the test is running, the time remaining and test result for each component is displayed on the screen.

If a component fails a test, write down the failure ID (24-digit code) for when you contact HP Customer Support. The information is also available in Test Logs on the main menu.

If no test fails, click Continue > Run once to run the 2nd Pass of the System Fast Test.

If a component fails a test, write down the failure ID (24-digit code) for when you contact HP Customer Support. The information is also available in Test Logs on the main menu.

If no system component fails, run the Extensive Test.

Run the Extensive Test (2 hours or more).

Run the Extensive Test if no system component failed during the Fast Test.

Hold the power button for at least five seconds to turn off the computer.

Turn on the computer and immediately press esc repeatedly, about once every second. When the menu appears, press the f2 key.

On the HP PC Hardware Diagnostics (UEFI) main menu, click System Tests > Extensive Test.

Click either Run once or Loop until error.

While the test is running, the time remaining and test result for each component is displayed on the screen.

If a component fails a test, write down the failure ID (24-digit code) for when you contact HP Customer Support. The information is also available in Test Logs on the main menu.

If the computer does not start, then it seems to be a hardware issue and needs servicing.

We're thrilled to have the opportunity to assist you and provide a solution. We hope our assistance has been helpful! 

If this solution hit the spot, please come back and click "Accepted Solution" to help others find the answer. And if you'd like to say thanks, select "Yes" on the bottom left of the public post, as that would make our day! 

Take care, and have an amazing day! 

Regards, 

Vince_0406

[Hawks_Eye]

Hi @Cig3,

Welcome to the HP Support Community! 

Thanks for posting your query! We're here to help you get back up and running.

I understand your laptop is not powering on and how frustrating it could be.

Let us try a few steps to troubleshoot and isolate or resolve the issue.

Remove devices and perform a hard reset.

To determine whether you need to contact HP or troubleshoot startup issues, perform a hard reset.

Note: A hard reset does not affect data saved on your computer.

Turn off the computer.

Disconnect the AC adapter.

Remove memory cards from the card reader slot.

Disconnect all nonessential devices such as printers, scanners, external hard drives, and USB flash drives.

Note: Do not disconnect your mouse, keyboard, or monitor.

With the AC adapter unplugged, press and hold the power button for approximately 20 seconds.

Reconnect the AC adapter, and then turn on the computer.

Note: Be sure that you use the AC adapter that was shipped with the computer.
 

If the computer starts, reconnect the devices one at a time to determine which disc or device is causing the problem, and then continue troubleshooting. 

If Windows does not start but the screen turns on, continue troubleshooting to test the hardware for failures.

1/2

[Hawks_Eye]

2/2.

Use the following hardware test procedures.

Run the Fast Test (about 4 minutes).

When Windows doesn't start, begin the hardware diagnostics by running the Fast Test. The Fast Test is separated into a 1st pass and 2nd pass, with each pass running multiple tests.

Hold the power button for at least five seconds to turn off the computer.

Turn on the computer and immediately press esc repeatedly, about once every second. When the menu appears, press the f2 key.

On the HP PC Hardware Diagnostics (UEFI) main menu, click System Tests.

If the diagnostics are not available when using the F2 menu, run the diagnostics from a USB drive. To download the latest version of the diagnostics, go to the HP Hardware Diagnostics website. For instructions, see HP PCs - Testing for hardware failures.

Click Fast Test > Run once.

While the test is running, the time remaining and test result for each component is displayed on the screen.

If a component fails a test, write down the failure ID (24-digit code) for when you contact HP Customer Support. The information is also available in Test Logs on the main menu.

If no test fails, click Continue > Run once to run the 2nd Pass of the System Fast Test.

If a component fails a test, write down the failure ID (24-digit code) for when you contact HP Customer Support. The information is also available in Test Logs on the main menu.

If no system component fails, run the Extensive Test.

Run the Extensive Test (2 hours or more).

Run the Extensive Test if no system component failed during the Fast Test.

Hold the power button for at least five seconds to turn off the computer.

Turn on the computer and immediately press esc repeatedly, about once every second. When the menu appears, press the f2 key.

On the HP PC Hardware Diagnostics (UEFI) main menu, click System Tests > Extensive Test.

Click either Run once or Loop until error.

While the test is running, the time remaining and test result for each component is displayed on the screen.

If a component fails a test, write down the failure ID (24-digit code) for when you contact HP Customer Support. The information is also available in Test Logs on the main menu.

If the computer does not start, then it seems to be a hardware issue and needs servicing.

We're thrilled to have the opportunity to assist you and provide a solution. We hope our assistance has been helpful! 

If this solution hit the spot, please come back and click "Accepted Solution" to help others find the answer. And if you'd like to say thanks, select "Yes" on the bottom left of the public post, as that would make our day! 

Take care, and have an amazing day! 

Regards, 

Vince_0406