Ipod Nano. USB Connection problem

[first500]

My Nano boots normally when not connected via USB. BUT... If Nano off, and I plug the USB in it looks like it is loading Rockbox ok, but then hangs with the word "LOADING" on screen, over the Rockbox boot screen.

I have to disconnect the USB, and let the Nano time out and turn itself off.

I can connect if I boot up the Nano first. However if a file is playing when the USB is connected the same as above occurs. I have to Stop the player before connecting the USB. I Have loaded several new versions of the software snce this started, but it makes no difference. Currently using 20070222

This all started after I tried (unsuccessfully) to charge the Nano via a mains charger, when it just hung. Before that it worked like a dream - could plug in when "off" and would just go straight to USB/charging mode.

Have I damaged what I think is called the bootloader? (The flashed part of the Ipod?) Is there any danger in reflashing the bootloader? If so, do I just follow the manual's instructions again as if this is a fresh unflashed Nano straight from the box? I would like to try this just to cover all possibilities but am not very sophisticated in these matters and am afraid I might do further damage.

All advice appreciated.

[Llorean]

Rockbox does not modify anything in flash. The installation process does not flash anything, it just puts files in a hidden partition in the disk.

Also, please test if things still happen with the most recent build of Rockbox before reporting, yours is over a week out of date, there are new builds usually multiple times per day.

[first500]

Thank you Llorean.  Para 2.2.1 of the Nano manual confused me by talking about the Ipod's flash memory.

So, can I assume then that if the latest build changes nothing, that I just proceed as I did when I first installed Rockbox?

[Llorean]

Let's see if the new build fixes it first. The bootloader shouldn't be able to affect USB matters either way.

[first500]

Help!  I loaded 20070305, removed the USB plug, Nano started to reboot.

After splashscreen, loading stuck with "Data abort at 0002FA3C" on screen.  Backlight on, not timing out.

Holding menu/select reboots the Nano, with same result.

Can insert docking plug during reboot - goes into USB/charge mode, so I reloaded the previous version of Rockbox (20070216).

Now it is working as before (ie  in my first post).

So - would it do any harm to reinstall the bootloader, and do I just follow the original process to do this?

[dbinder]

I have been using build 070307 and I am getting the exact same problem as first500's first posting where it says "Loading" and just freezes there. The only way out is too re-boot without the USB plugged in, let it get into Rockbox and then plug in the USB cable. Has there been any changes since this build?