won't boot up No display

[mastertech1]

Hello I have an HP Envy x360 15". Problem is the display does not turn on. the power light turns on, then camera light turns on , the fan comes on for 2 seconds and then turns off. the battery has 12 volts across the red and black wires. any idea whats wrong

[Kuroi_Kenshi]

Hi @mastertech1,

Welcome to the HP Support Community!

Thanks for reaching out!

We're thrilled to have the opportunity to assist you and provide a solution.

I understand your HP Envy x360 15" powers on briefly but shows no display, the fan spins for a couple of seconds, and then the system shuts off. Let’s go through a few steps to troubleshoot this.

Perform a Hard Reset
○ Disconnect the power adapter and remove the battery (if removable).
○ Press and hold the power button for 15–20 seconds to drain residual power.
○ Reconnect only the power adapter and try turning on the laptop.

Check External Display
○ Connect an external monitor via HDMI or USB-C.
○ Power on the laptop to see if any image appears.
○ If the external display works, the issue could be with the internal screen or display cable.

Reset RAM and Internal Connections
○ If you’re comfortable opening the laptop, reseat the RAM modules and check internal connectors (display, battery, motherboard).
○ Ensure nothing is loose or damaged.

Test Without Battery
○ Disconnect the battery and try powering on the laptop with the AC adapter only.
○ If it powers on normally, the battery or charging circuitry may be causing the shutdown.

Check Power Indicators & Beeps
○ Listen for beep codes or LED blink patterns, they indicate hardware failures (motherboard, GPU, or memory).

BIOS / Firmware Recovery
○ Some HP Envy models allow BIOS recovery via key combination (Win + B + Power).
○ If attempted, follow HP’s official BIOS recovery procedure.

I hope this helps.

I'm glad I could help! 😊 If this resolved your issue, please mark it as "Accepted Solution" and click "Yes" on "Was this reply helpful?" Your feedback not only keeps us going but also helps others find the solution faster! 👍✨

Take care and have an amazing day ahead! 🚀

Best regards,

[Kuroi_Kenshi]

Hi,

Hope you're having an amazing day! We wanted to follow up on the technical issue we tackled earlier. Are you all set and issue-free? 

If you encounter any more hiccups or have questions, please don't hesitate to reach out. We're here to help and support you every step of the way! 

We'll be archiving this case, but feel free to respond to this thread anytime to continue the conversation. 

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

Take care, and have an incredible day ahead! 

Best regards,

Kuroi_Kenshi

I am an HP Employee