orginally post by
RealOne in
General Emulation 
DUMPING YOUR BIOS THROUGH USB
Things you need:- USB mass storage device
- DumpBios-USB.rar
- CD-R
- Modded PS2 (Else, A way to load up homebrew apps)
Ok, let's start
Step 1: Extraction
Extract the DumpBios-USB.rar by using
WinRAR
Then, you will get the file
DumpBios-USB.iso
Step 2: Burning ISO to CD-R
Burn the ISO file that you get from step 1 to CD-R
Step 3: USB Mass Storage Device
Your Flash Drive should :
- Have atleast +8MB Storage Space
- Be Formatted into FAT/32
- Been allocated the Maximum Space Available. i.e, Have No partitions
Step 4: Dumping- Insert the Burned CD-R from Step 02 to your PS2
- Insert the Flash Drive from Step 03
- Start Your PS2 (P.S Only a modded PS2 could load a CR-RW)
Now It should load up like the following Screen
On that screen press
SELECT
On the Next Screen, The pointer should be pointed to Defaults, Just Press
O.
Note: This is an Important Step, Scroll Down to
mass:/ and Select
O.
When You selected the mass:/ directory, it should go in to the device and should be able to be explored as in the following Screenshot. If you are not able to do so, you must check whether it has been formatted to
FAT/32. If it is try changing the Flash Drive into the second USB hole.
Now press
X and go back. Browse to
cdfs:/. This is the Directory of the Inserted disc. Inside the CDFS Directory you should have,
DUMPBIOS-MASS.ELF. Select It and Press
O
Once You Have pressed
O. You would have come to the Second Screen But slightly different Which you would notice. The DUMPBIOS-MASS.ELF would be selected in the Default Boot
Now Press up twice, or a lot more times down and at the
OK function press
O. Now you should come up with this screen
All you gotta do now is
wait for 10 seconds and If you did it correctly Your Bios would be Dumped.
Still Having Problems?
You are bound to have problems on the first try. So, try again and make sure you havent missed out any step.
Specially the one where you have to go to the
mass:/ directory.
Special Thanks: 
DarkZeros AKA TWave: For his guide at NGemu which lead to the making of this guide
PS: why do i post this?
1) most ppl asking for it
2) it is easier than other dumping method
PSS: can any mod, admin move this thread to sticky thread so that most ppl can easily found it? please?