At regular points when I plug in my Z to charge up the light will go on momentarily and the Z will show no signs of charging. I have on occasion left it plugged in but no charge built up so its clear if the charge light dosen't come on it not charging. So the usual remedy is I do a reboot and this sorts it out, only thing is its a bit annoying and I'd like to understand whats going on and solve it without the reboot.
Thanks
Gus