Serial number and other detail is gone

[pavilion5045]

Hi!
I got a old HP-Pavilion 15-bc007 laptop that has forgot all bios settings, serial number and so on, I have replaced the CMOS battery and the battery.
I have seen your video, it is possible to get the file?
https://www.youtube.com/watch?v=Bbof7LdzqdQ

Detail about the computer:

Serial Number : 
Product Number : Z5B36EA
Description : HP Pavilion Notebook
ROHS Status : Not Assigned

System board number:
CT:PFYLQ058J45396

The system board ID from BIOS is: 820D

[edited link]

I have tried to use NbDmiFit_2.08 but i got error "vendor code not supported"

What could i do to make it work?

Thanks in advance

[Max3Aj]

@pavilion5045, Welcome to the HP Support Community 

  

I understand you are facing an issue that occurs when the CMOS battery is replaced or the motherboard loses its DMI (Desktop Management Interface) data. Not to worry I will help you to get a resolution to resolve the issue. 

  

This needs one-on-one interaction hence I'm sending a private message to assist you with the next action. 

  

Please check your Private message icon on the upper right corner of your HP Community profile Next, to your profile Name, you should see a little blue envelope, please click on it or simply click on this link. 

  

I hope this helps! Keep me posted. 

  

Max3Aj

HP Support

[pavilion5045]

I manage to write all the details to the bios now and no post error at all! 🙂  

But i still got a question, the battery is not charging at all when i am booted in Windows, but when i shut down the computer the diode turns red and start to charge.

When i booted in Windows and plug out the charger and plug it back in it charges for like 5 seconds and brighen up the laptop screen, after 5 seconds, it returns to battery power, what is the problem? could i "force" it to use the adapter?

(i got only a 60w power adapter right now, it seems that it required a 120w)

[Hawks_Eye]

Thanks for getting back to us @pavilion5045 

Thanks for sharing the details. You're doing a great job reviving your HP Pavilion 15-bc007. 

1. Battery Charging Issue in Windows

Your symptoms strongly suggest power adapter mismatch:

• The Pavilion 15-bc007 typically requires a 120W adapter. Using a 60W adapter causes:
  • Charging only when the system is off or idle.
  • Power draw exceeding adapter capacity during Windows operation, forcing fallback to battery.
  • Brief charging when replugged, then dropping due to power negotiation failure.

Solution:

• Replace the 60W adapter with a genuine HP 120W Smart AC Adapter (part numbers like 741727-001 or 741727-003).
• Avoid third-party adapters unless they match HP’s wattage and smart pin specifications.

Why it matters:

• HP laptops use smart pin communication to verify adapter wattage.
• Insufficient wattage can throttle performance, disable charging, or cause erratic behavior.

If my response helped, please mark it as an Accepted Solution! ✅ It helps others and spreads support. 💙 Also, tapping "Yes" on "Was this reply helpful?" makes a big difference! Thanks! 😊

Take care, and have an amazing day!

Regards, 

Hawks_Eye