Dead FR: does not boot

[arne anka]

i seem to recall something like:
- remove battery and any connection (charger, usb)
- let the fr alone for a few hours (to lose all power still cached  
somewhere and thus resetting fuses)
- put the battery back in and plug in wall charger
- let the fr alone for a few hours while charging
- while still charging try to boot

did you ever flash u-boot with a recent version?