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Subject: Re: Why is there no firmware file on my JB?
From: Frank Uebel (Frank.Uebel_at_gmx.de)
Date: 2003-09-14


Hi,

Nuno Romao wrote:
> I just bought a JukeBox Recorder (15GB model). The FW is 1.28, which is
> newer than the 1.27d posted on their web site.

In fact 1.27d is 1.28.

> So what does this have to do
> with RockBox? Well, I want to try RockBox but I don't want to lose the 1.28
> FW that is already loaded on the JB. But I don't see any FW files on the
> drive. Where is the 1.28 FW being stored?

The firmware is stored in a flash-chip, not on harddisk. As long as you
don't bother with reflashing that special chip, the original firmware is
not touched when you copy/install rockbox on the hardrive.

> How can I copy it and save it?

Get the 1.27d and copy it somewhere on the harddisk, if you want to. But
thats not really neccesary, as you will see.

Whenever you power the unit, the firmware from the flash chip is loaded
and executed. That firmware _then_ checks the harddisk for the existance
of some special files aka another firmware to load. If it does not find
them, nothing happens and you have the original Archos software.
If those files are _present_, the unit will load them and execute them
as new firmware. This is how rockbox comes into play. The firmware in
the flash is _not_ touched (unless you really want to do that, but
that's a different story).

As you see, simply copying rockbox to your harddisk and using it will
not interfere with the original Archos software. Just delete the special
rockbox-file from the harddisk, reboot, and you are back to old Archos.

Regards, Frank

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