Computer Won't Start, But Keyboard Turns On

[meowford]

Information this didn't let me add:

OS: Ubuntu 24 

Product: OMEN Transcend 14 inch gaming laptop-pc 14-fb0000 IDS base model

Warranty ended. 

Was having a hard time unpacking the Curseforge download, and decided it was probably about time to restart my computer. Once I did, the computer screen and fans didn't turn on. The power button was glowing, but nothing else seemed to work. Waited several minutes, then did a hard reset. Laptop momentarily turned on and said it had a CMOS issue (Error 502). Followed HP's instructions in this scenario, computer still did not boot. Every other time I attempt to boot it, it shows the CMOS error. Otherwise, the screen and fans never activate, but keyboard lights (FN, Caps Lock, F5, F11, even the entire computer backlight if I activate it) will turn on. 

[Deep_World]

Hi @meowford,
 
Welcome to the HP Support Community!

Thanks for reaching out!

I Understand your concern about no power issue, don’t worry let me help you with this.

To better understand the issue, could you please provide a few more details?

• When the CMOS error appears, does the system give you the option to press a key (like F1 or Enter) to continue, or does it freeze immediately?
• Have you recently updated the BIOS or firmware before this issue started?
• Do you notice any blinking patterns on the Caps Lock or Num Lock keys when the laptop fails to boot (HP laptops sometimes use these as error codes)?

Troubleshooting steps to try

1. Perform a CMOS reset
   • Disconnect the power adapter.
   • Hold down the power button for about 15–20 seconds to drain residual power.
   • Reconnect the adapter and try powering on again.
2. Hard reset with battery disconnect
   • If your model allows, disconnect the internal battery (or use the battery disconnect pinhole if available).
   • Wait a few minutes, reconnect, and then try starting the laptop.
3. BIOS recovery
   • Press and hold Windows + B while pressing the power button.
   • Keep holding until you hear beeps or see the BIOS recovery screen.
   • If it appears, follow the on-screen instructions to restore the BIOS.
4. External display test
   • Connect your laptop to an external monitor/TV via HDMI to check if the issue is with the built-in display.

Since your warranty has expired, these steps are safe to try at home. If none of them work, the CMOS battery itself may need replacement, or the motherboard could require service.

I hope this helps.

[meowford · Accepted solution]

((solved by repairing operating system files)) 

[Chimney_83]

I am happy to hear that you were able to resolve the issue on your own. Please reach out to us for any technical assistance and will be to assist you.