(09-21-2014, 04:58 AM)vvd214 Wrote: My system
-Manufacturer: HP Compaq 610
Bios file
http://ftp.hp.com/pub/softpaq/sp55501-56000/sp55870.exe
My current Bios version is also F 20. I found in forum F08 bios mod but I cant flash because the system say" cant downgrade.
Please help me mod this version. Thanks
Hi friend,
It's an very old Bios your and It needs ADDC tool to modify !
I can try to explain how to force the Downgrade using Recovery Mode.
Recovery Mode can do using a FD or an USB Stick if your Bios can Boot from USB.
Recovering the BIOS
The BIOS recovery procedure requires a ✎ USB diskette drive and a formatted diskette.
The BIOS can be recovered if the flash memory is corrupted. Flash memory corruption can occur if
the notebook powers down while the BIOS is being updated. When the notebook is turned on, the
boot block portion of the flash memory performs an integrity check on the rest of the BIOS
image and enters recovery mode if the image is corrupt. BIOS recovery can be forced on a nonfunctioning
notebook by turning on the notebook while pressing and holding
the Windows logo key + B on the nonfunctioning notebook keyboard until the caps lock light blinks.
To recover the BIOS:
1. If the nonfunctioning notebook is docked in an optional docking device, undock the notebook.
2. Attach the USB diskette drive directly to a USB port on the nonfunctioning notebook.
(USB hubs are not supported for BIOS recovery).
3. Insert the correct ROMPaq diskette for the product being updated. The BIOS image file must be
located in the root directory of the diskette and must be in contiguous sectors. The easiest way to
ensure this is to visit
http://www.hp.com, download the Softpaq, and let the Softpaq create the
ROMPaq diskette.
4. Press and hold the Windows logo key + B on the notebook keyboard (do not use an external
keyboard) and turn on the notebook and wait for the caps lock light to start blinking.
5. Release the Windows logo key + B. The BIOS recovery procedure takes approximately one
minute to read the image from the diskette, and then an additional 15 seconds to program the image
into flash memory. The notebook restarts when the BIOS recovery procedure is complete. Do not
attempt to turn off the notebook after starting a recovery. If the BIOS recovery procedure stalls, the
caps lock light will begin blinking. This situation can arise if the diskette is corrupt or the incorrect
ROMPaq is used. If the notebook does not restart after approximately 3 minutes, press and hold
the power button, or slide and hold the power switch, for at least 5 seconds to force the notebook to
turn itself off. Then repeat the BIOS recovery procedure.
Another way to test the Recovering Procedure is to run it on your laptop without a fail and without
any USB drive plugged. Hold down the Keys and start the engine, if the CAPS-LOCK LED blink
alternative the Recovering Procedure works principal on your notebook. In my case, the NC4200
case, they wrote “hold the Windows logo key + B” but it works with the four arrow-keys too. A
normal USB stick wont work, maybe a special USB stick with a controller that can emulate a
Hardware Floppy likes the HP USB FLOPPY DRIVE KEY or some old JETFLASH or some new
Netac Minisafe Models. You have to change/modify the USB_DEVICE_DESCRIPTOR.
http://www.gizmodo.de/2008/10/26/usb-sti...-disk.html
http://www.rm.com/Support/TechnicalArticle.asp?cref=TEC134761&nav=0
This is for HP 615 :
http://www.youtube.com/watch?v=lzoeO0EgG_M
If you have the original partition HP_TOOLS and files
Hewlett-Packard\BIOS\Current\68GVV.BIN and Hewlett-Packard\BIOS\Current\68GVV.SIG,
turn on the computer with keys tucked WIN + B or "→ ↓ ← ←" (four arrows ) and wait for
the automatic execution of BIOS RECOVERY from the hard drive.
If you do not have HP_TOOLS partition, or the above mentioned files, do RECOVERY from USB stick.
1) Format the flash drive as FAT32 and set the label "HP_TOOLS".
2) Create a directory tree "Hewlett-Packard\BIOS\Current\";
3) Unpack the SoftPaq, then extract the "Rom.cab". I used version F.06.
4) Move the files "Rom.bin" and "efibios.sig" to the "Hewlett-Packard\BIOS\Current\";.
Note that the file "Rom.sig" digital signature is 64 bytes, so RECOVERY in the film did not work.
File "efibios.sig" digital signature is 256 bytes. If it does not work, try the two files.
5) Rename "Rom.bin" to "68GVV.BIN" and "efibios.sig" to "68GVV.SIG"
6) Run the BIOS RECOVERY and wait about 1 minute to complete repairs and turn off the computer.
Pay attention to the work of the USB flash drive.
I will try to Mod your F.20 Bios and upload here a file for You.
let me know
Regards
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