Rockbox General > Rockbox General Discussion

How can I automatically boot Original Sansa firmware instead of Rockbox?

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AlexP:
And those are all different devices.

whiskers75:
There is a way, but unless you know assembler and are willing to risk bricking your player, no.

Crafty:
hmmm,

does USB/MSC code run before the bootloader?
And is the USB/MSC code burned on ROM?
 
The factory has to have some way of loading OF.

bluebrother:

--- Quote from: Crafty on February 23, 2013, 04:53:16 AM ---does USB/MSC code run before the bootloader?

--- End quote ---

No.


--- Quote ---The factory has to have some way of loading OF.
--- End quote ---

Yes, but that doesn't necessarily mean they have to access the memory via USB. The factory has access to the PCB so they can use internal interfaces.

saratoga:

--- Quote from: Crafty on February 23, 2013, 04:53:16 AM ---The factory has to have some way of loading OF.

--- End quote ---

They probably flash the NAND chips before they solder them onto the board.


--- Quote from: Crafty on February 23, 2013, 04:53:16 AM ---And is the USB/MSC code burned on ROM?

--- End quote ---

They use NAND rather then a traditional ROM, I guess to cut costs.  If you screw up a firmware flash its extremely difficult to fix it.

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