HP 250 G6 BIOS corrupt

[Dan_Barnett]

10 Oct 2024, During MS windows update there was a proposition to update my notebook firmware. I agreed. After flash and reboot - black screen no beep no lights.

I have created bios recovery USB. While pressing Win+B during boot I can see that HDD activity led blinks one time and after few seconds second time. The USB key flashes indicating that it can been seen. The laptop then loads BIOS recovery BUT is not reading from USB

USB is 32 Gb, formatted fat 32. Have downloaded SP154498.exe and run it On USB there are 2 folders Hewlett-Packard and HP created with some subfolders.

When I did the Bios update the pc was fully charged and with the power supply inserted. Unfortunately, no message comes up on the screen. When I turn on the pc, the screen just turns black (no hp logo, nothing at all). 

However reading on various forums, the same problem happened to others with the same bios version F.71. One solved by changing the motherboard, while the other changed the bios chip (reprogramming it)

[BeemerBiker]

You have done everything correct.

Try using an old bios instead of the most recent one.

https://support.hp.com/us-en/drivers/swdetails/hp-250-g6-notebook-pc/15747807/swItemId/ob-334655-1

Download and try the F.65 bios as it was the last one that actually did something IMHO.

Else try the previous one, F.74

be sure to do the the ctrl-v (CMOS reset)  Maybe try this first!

Follow the steps below to reset computer CMOS data.

1. Turn off the computer.
2. Press and hold the Windows and the V keys.
3. While still pressing those keys, press and hold down the Power button on the computer for 2-3 seconds.
4. Release all the keys.
5. At the completion of a successful CMOS reset, a message showing CMOS Reset (502) will be displayed.
6. Restart the computer.
7. Press F10 to get in to bios. Check Date and time.
8. Press F9 to set bios defaults. Ensure secure boot is enabled.
9. save setting when you exit

If you do not see that 502 message then :

• Turn on the computer by holding the power button down for 20 full seconds then release.
• Press the Power button one more time (if necessary) to start the computer.
• Tap the ESC key about once a second after you see the LEDs on the keyboard flash.
• Do steps 7-9 above

[Dan_Barnett]

@BeemerBiker Thanks for the reply.  Windows and the V key doesn't seem to do anything. Unable to get into BIOS, pressing Press F10 is a black screen Bottom left hand corner is F10 Bios setup options and it doesn't goes past there

Pressing the ESC Key is a black screen Bottom left hand corner is ESC pausing startup.  

F71 is the one that fell over F74 is the latest I will try to find F65 and give that a whirl

Been pulling my hair and trying everything for2 days

HP living up to their name Hardly Perfect

[Dan_Barnett]

Well downloaded an earlier version F63. System now boots from USB stick does the install accessing the stick and then black screen and no noticeable difference in actions of laptop 

[BeemerBiker · Accepted solution]

You can replace the bios, replace the motherboard or possibly program the chip using a 341 programming tool.
 (this tutorial might be useful). 
An HP bios flash is discussed here

Sorry, it does not look good and it seem you have already tried all the first things to do