My 1st generation Zune has been acting oddly for the past couple of months. It sometimes refuses to start (light the LCD) when it is charged (sometimes fully charged). Plugging the Zune into a power source (AC adapter in my case) lights the LCD and lets me use the Zune. But, still, it is annoying. It is a good thing I never take the Zune out? Otherwise, I might be faced with a temporary brick.
Same issue here. When connected to wall AC, the Zune is working and the battery is shown as ‘full’. As soon as the wall AC is disconnected, the Zune goes into ‘sleep’. If restarted, it only lasts <1 sec and sleeps again.
If connected to USB instead of wall AC, it goes into boot/reboot/boot/reboot in quick succession. No idea why…