BIOS update for HP Pavillon 500-320no

Question

Hi HP!
I have the same problem with installing BIOS update as some other users.
1. Is it sp70148.exe that I've got to use updating BIOS on a HP Pavillon 500-320no? I've tried five time via the Support assistant - but it doesn't work.
2. And - hov important is this update? - rigth now I'm running AMI 80.16, 12-05-2014
kind regards
Henry
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Answer 1

A member "redshore" has posted a possible solution for the BIOS update problem to 80.20, a few members have tried it and apparently it has worked.
I must remind you to be very careful performing the solution I will show below.  If you are not comfortable doing it then don't.  Any error may brick your system.
HP has no official position on this solution and you do so at your own risk.  Should you decide to go ahead with it, please report back the results.
Here is the poissible solution:
1. Download the latest BIOS version"sp70148.exe" and save it to your Desktop.
2.Now close your browser and any open windows. There's no need, at least in my case to shut down your anti-virus, people that say that typically don't know what their talking about not to mention you leave your PC open to nasties.
3. Right Click on the downloaded file and selcet "Run as Administrator". Allow it to run and Do Not touch the mouse or keyboard while it installs. You will see a DOS BOX or a black window appear and a cursor, let it continue. Your PC will Re-boot on its own when it's done, LET IT.
After your PC is back to the Desktop, click on "My Computer" then click on "Windows (c:
You should now see a folder called "SWSETUP"
The date on the folder should say todays date or the date you ran "sp70148.exe"
4. Click on the folder and go to the folder "sp69840" You should see a few files inside called "Flash.bat" "FWUpdhcl.exe" "GUI-8020.exe" "MEM_8020.  "MEM_8020.BIN" & likely one more.
5.Make sure you see these files before doing anything else, DO NOT CLICK ON ANY OF THEM! Just make sure you see them.
If you see these files, good. If not post and I'll try to help.
Now close the windows and go back to your Desktop.
6. Restart you PC. Before it Boots to the Desktop quickly press ESC on your keyboard.
7. You should now be in the "Startup Menu"
8.Select "F2 System Diagnostics"
9. Now you should see "HP PC Hardware Diagnostics UEFI" screen. Mine says "Version 5.7.0.0"
10. Use your mouse and Select "Firmware Management" You will see "BIOS Management" at the top of your screen.
11. Click on "BIOS Update"
You should now  see at the top of your screen "BIOS Management"
Mine says in red "The selected BIOS image was not available, you may select an alternative image file, or cancel the update."
In black below that it says "This system's BIOS ID is (your BIOS version will be two digits a decimal point and two more digits. Mine was 20.16 before I update to 80.20)
"A signature file must also be available in the same directory"
12. Click on "Select BIOS Image To Apply"
This opens up "Select File System"
You should see several options where the files I spoke of earlier can be found. Remember "Windows (C SWSETUP"
13. Choose "Windows-Sata (0x0, 0xFFFF,0X0) Drive Partion 4"
14. At the top of the screen it should say "File Navigator" now select with your mouse "SWSETUP"
15. Now select "sp70148"
***16. YOUR BIOS SHOULD UPDATE TO VERSION 80.20 NOW....ALLOW YOUR BIOS TO FLASH, DO NOT TOUCH ANYTHING ON YOUR PC AND DO NOT TURN IT OFF, JUST BE PATIENT AN LET IT FLASH, IT TAKES SOME TIME.***
17. Once the Flash is finished, your PC should boot to the Desktop on its own and you now have the latest BIOS that fixes the security issues.
Again, if you're not comfortable and this post seems complicated to you, skip it until HP finds a quicker fix.
Please mark my post as SOLVED if it has resolved your problem. It helps others with similar situations.