Omen laptop by hp 15-ax210nr screen black when powered on

[Ronie248]

Hello everyone I just recently replaced the battery in my HP Omen 15-ax210nr. I went to cut it on and I noticed it wasn’t displaying anything and the caps lock was blinking three slow and 2 fast. Can anyone please help me

[Nal_NR]

Hi @Ronie248,

Welcome to the HP Support Community. 

I'd be glad to help you! 

I'm really sorry you're dealing with this issue after replacing the battery—it can be so frustrating when something unexpected happens. Let's see if we can get it sorted out for you.

CAUTION: If your computer does not turn on, wait at least 5 minutes before troubleshooting the computer. Your computer might be installing an update for Windows or the BIOS or detecting new hardware. During this update process, you can expect the screen to be blank for several minutes. It might damage the computer if this process is interrupted. Do not turn off or unplug the computer during the update process.

Perform a hard reset

If your computer suddenly fails to boot properly, perform a hard reset (power reset).

For detailed instructions on resetting your computer, see HP PCs - How to power reset your computer.

• Turn off the computer.
• Disconnect the AC adapter.
• Remove any discs from the disc drive.
• Remove memory cards from the card reader slot.
• Disconnect all nonessential peripheral devices, such as printers, scanners, external hard drives, and USB flash drives.
• With the AC adapter unplugged, press and hold the power button for approximately 15 seconds.
• Reconnect the AC adapter, and then turn on the computer.

Note: If an error message is displayed, see HP PCs - Resolving diagnostic errors that are displayed during startup.

Otherwise, continue with the troubleshooting procedures in this document.

Click here for the remaining steps. 

Hope this helps! Keep me posted for further assistance

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