Ok guys, just upgraded the firmware on my H340 last night. and *really* wish i'd left it.
The player turns on, and starts loading as normal, but then says 'results -1' and then turns off. HDD makes a click noise too.
The player wont even boot into the original firmware, it still says the same thing.
Plugged the system into usb, and i get the 'bootloader USB mode' message come up, but nothing appears on the pc. it would appear to be a bug thats been reported before.
Any help would be much appreciated. i really dont want to hear i've killed it, i only just fitted a new battery!
Cheers.
EDIT: Found this:
http://forums.rockbox.org/index.php?topic=16529.0 and it would appear to have fixed the problem. for now at least.