Fix Missing Serial/Product Numbers for HP Laptops

I have taken this information from http://diypcrepair.wordpress.com/2013/04/30/how-to-fix-system-board-ooa-missing-system-information-hp/ I tried this on an HP DV6 1152tx notebook and it worked.

How to Fix “System Board OOA” or “Missing System Information” or “Product Information Not Valid” HP

This happens when a motherboard loses the information that’s “tattooed” onto it, or burned onto it. HP says the only way to fix this issue is to pay a technician to repair the issue. I have found a way to do it yourself, although it does require a little finesse and following directions. It’s not too difficult, though.
Before you try the method below, see if this method works first, because it is less of a headache to deal with.
Things you’ll need:

1. Empty USB thumb drive
2. About 30 minutes or less

Here’s How:

1. First, download this utility. It’s called Rufus, and it quickly and easily makes bootable flash drives, which is how we are going to run the HP tattooing utility.
2.  Next, download HPBQ138.exe. This is the utility HP service technicians use to burn system information to the motherboard. Sometimes this is called the DMIFIT tool.
3. Now create a bootable USB thumb drive using Rufus.
   
4. Now open the flash drive and drag HPBQ138.exe (not zipped) into the main directory. It should now look something like this:
   Files needed to use DMIFIT
5. Now reboot your computer and boot from the USB drive. If you don’t know how, use the guide here.
6. Once in the DOS environment, type: “HPBQ138.exe” without the quotes. This should start the DMIFIT utility.
7. Follow the guide below to update system board information:
8. • (0) Serial Number = S/N on back of laptop
   • (1) Notebook Model = model number of back of laptop
   • (2) GUID Number = random
   • (3) UUID Number = Select 1 to generate UUID
   • (4) SKU Number = Product Number (e.g. WA985UA#ABA)
   • (5) CTO Localization Code = Last 3 letters (e.g. ABA)
   • (6) MAC Address = Random
   • (7) PCID = Sticker/ printed on back, under battery or on MOBO. (This may be difficult to find but it’s there and hopefully not burned or rubbed off. I found mine under the battery compartment in really small letters. It looked like this: “PCID: 1234567…”)
   • (8) System Board CT # = blank
9. Save the information and reboot.

Leave a comment if you have questions and I will respond, but my assistance will be limited.
Also, let me know it worked okay!