You can find firmware toolbox on xbins. It's also available in our download section. Here is a
LINK to it.
Using firmware toolbox seems complicated when you first use it, but its not really that bad. Once you get the drive in mode b, boot your computer into windows. Then open up firmware toolbox. Then click on TOOLS and then Direct Drive Dump (GDR Only). Once you do that, a box will come up where you have to select your drive. Make sure that your hitachi is selected, it should be by default. Click the eject button and either put a DVD movie or an original game in the tray and then click the close button. Wait a few seconds for the drive to spin up and if any autoplay boxes come up, just close them. Then click the Classic Dump Firmware as button. Name it orig.bin and save it somewhere that you know where its at. Make several copies for save keeping or even consider emailing it to yourself. It should dump the firmware at this point. When it finishes, it will ask you if you want to open the firmware. Choose yes. If it asks to check the firmware, answer yes as well.
Check the Key and make sure that its valid. It will be alot of random characters and numbers, not all F's or 0's. If it is all F's and 0's, try dumping the firmware again.
Now click tools, and then select Smart Hack Patcher. Choose ok on the next box and then click the little box with the three periods to choose where to save and name your hacked firmware. You can name it anything you like, but I usually use hacked.bin. Then make sure the rule set it iXTREME14_0036-0059_12x, by default its set to iXTREME14_0036-0059_8x and then click the generate File button. It will generate your hacked firmware and ask if you want to open it. Choose yes.
Then choose Tools and then Direct Drive Flash (GDR Only) Differential Flash (Patch). Make sure your hitachi is selected in the top box, then check the Use Classic Mode box and then click Read and Detect Differences button. It should read the current firmware and compare it to the hacked firmware. Then display the differences in the box labeled Flash these sectors. When that finishes, click the start flashing button. It should start flashing the drive.
When it gets done, your ready to try it out.
Sorry thats so long, but thats how it works in firmware toolbox. I hope it helps you out!!