FelipeCamara Honor Student
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ENVY dv7 7227cl won't turn on after bottom cover replacement

ENVY dv7-7227cl
Microsoft Windows 10 (64-bit)

Hi there, I am new to the Forum. I hope you can help me.

The original Windows was 8 upgraded to 10.

I replaced the bottom cover. The Notebook was working fine before. In the proses I disconnected the CMOSS battery, HD, DVD, WiFi adapter, etc. I have done this before many times.

Before assembling all back, as I usually do, I performed a quick test. I connected the LCD, memory, CMOSS battery, on/off button board, keyboard and DC charger.

When I pressed the on/off button the led on the on/off board turned on, the CPU fan turned on, the HP logo on the back of the LCD turned on, the LCD screen stays black and the caps lock led start blinking once every 2 or 3 seconds.

Because this Notebook was Windows 8 and use UEFI I decided to finish the assembling and try again. It responded the same as before.

I can’t believe that the MB is bad; it was OK before replacing the bottom cover. Probably something to do with the UEFI/Windows 10 combination??????

What I have tried?

1-Hard Reset: no battery, no DC charger and pressing on/off button for 15 seconds.
2-Disconected the CMOSS battery for several hours.
3-Turning on and hitting the Esc, F12,F11,F10… button many times (all the F buttons).

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ENVY dv7 7227cl won't turn on after bottom cover replacement

Hello @FelipeCamara,


Thank you for visiting the HP Support Forums! The forums are a great place where you can find solutions for your issues, with help from the community!


I understand that you are having an issue with the notebook starting, and wanted to assist you!  I see that when you try to start the notebook, the Caps Lock LED will blink 1 time, every few seconds.


Based on the information that you provided, the issue seems to be related to a defective Processor.  You can try replacing the Processor to see if the issue can be resolved.  You can find compatible upgrades for your Processor here: 

HP ENVY dv7 Notebook PC Maintenance and Service Guide (Chapter 4, Page 85-86).


Alternatively, you can also try contacting HP Phone Support for additional options.  Please use the following and create a case for your issue and contact HP. If you live outside the US/Canada, please click the link below to get the contact information for your region.


Please let me know if this information helps you resolve the issue by marking this post as "Accept as Solution", this will help others easily find the information they may be looking for.  Also, clicking the Thumbs up below is a great way to say thanks!


Have a great day!

I work on behalf of HP

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