Manual Switch to/from USB connected mode for IRiver H320

[dunxd]

Hi there - I've got a semi-bricked IRiver H320.  I have the fairly common "always connected" USB issue when I start up the H320.  The "Zall workaround" works for me (see http://www.misticriver.net/forums/h3xx-series-320-340/11314-fixed-h320-always-connected-prob.html).  However, since this shorts out some USB contacts the battery life is severely limited.

However, I was wondering if there was any way Rockbox could be altered so that the automatic switch into the USB connected mode did not happen - the machine would always boot into regular playback mode.  Would it then be possible to add a control to manually switch into USB connected mode in order to transfer files from a PC?  Then on reboot it goes back into playback mode.

Is this sort of thing possible?  If so, which files would be the relevant ones to edit?

[AlexP]

That is an interesting point.  I am largely guessing here, but seeing as we can hold a button to enter USB charging not USB disk mode when inserting USB, maybe you can reverse the order so you press a button to enter diskmode.  However, it would also mean a modded bootloader, which on H1x0 or H3x0 means being very careful - a faulty bootloader means only being able to recover via a hardware connection to the unit motherboard.

I would pop or IRC during the day (European time) and try asking there for someone with greater hardware knowledge.

[ximarix]

Has someone tried this? My H320 is also "broken" so I would love to have a solution like this!