Iriver H300 CF mod guide

[Gravitonx]

Hi all!

Could someone describe all the actions needed for Iriver H320 CFMod step by step?
I cannot get it clear from Wiki page...

1. What should I do with this file http://www.rockbox.org/wiki/pub/Main/CFModGuide/H300.zip??? I see there's just a .hex file in the archive.
Should I run firmware update from inside the original Iriver firmware on this file? Or choose it in Rockbox utility when installing the Rockbox?
2. For Iriver IHP-100 there is a large detailed bootloader install procedure, and what I see for H300 is a few words with this hex file and with no other stuff like it is with IHP-100
3. What are further steps?
4. What format CF card should have?

It would be so great if someone who succeeded in this stuff helped me with description of each step he made in details.
Thanks a lot in advance!

P.S. Sorry for creating a separate thread, but the forum is nearly dead and I haven't got any answers for long time. And my request is quite urgent since HDD in my H320 becomes problematic.

[Gravitonx]

Hey! Is anybody alive here?

[bluebrother]

No.

[Gravitonx]

Hey guys! Help please! My HDD is going to die. I don't want to have a useless brick!

[Chronon]

bluebrother can tell you better than I can whether or not Rockbox Utility will use a user specified bootloader to patch a copy of iriver's firmware.  Otherwise, there are instructions on how to manually install a bootloader in the manual. 

[Gravitonx]

I've tried to do CF mod yesterday without success .
What I've done:
1. I installed patched Iriver firmware ver. 1.29k via native iriver Firmware update
2. Install latest rockbox using same FW
3. Copy rockbox to CF card Transcend 32Gb 133x
4. Replace HDD by CF card using adapter
5. When tried to boot Rockbox it shows error:
 ATA Error: -80, please connect usb cable and press a button.
I connected USB cable and nothing happened.
But then I reset device, connect it to the usb cable without starting rockbox
In this case it showed the same error, but when I pressed a key it connected in usb mode and the cf card became available, I could read and write files.
Then again tried to boot rockbox - again error.

Please advise, what can I do in this situation? Is it connected with the card?

P.S. The same situation is for the H300.hex which was attached to CF Mod guide page. (I also installed it via native Iriver FW update and got the same result as described below)