iriver h300: Can't boot original firmware [was: HELP !!!]

[Looping]

After installing Rockbox, I run into a big problem. When I press the record button while pressing the power on button, the iriver firmware begins to load, but the iriver never boots. I always see ver 1.29 k loading but it never starts. Listening to the device, it seems the disk runs but no result.
Is there an expert here who can tell me how to fix it ?
Thanks a lot in advance.
Thierry.      

[LinusN]

Try reading this thread: http://forums.rockbox.org/index.php?topic=5856.0

[Looping]

Thanks a lot. That's do the job.  
Thierry.