Why won't my BB Z10 load past 100 on the re-start icon?

my phone was flat as per usaul then i put it on the charger ,it took a while to show the charging light, after that the phone just showed the bb startup icon and it wont go up to a 100% to switch on. the probel started this morning its 14 hours later.

First of all, do not let Li-On batteries die. This can cause problems (as you just noticed).

Holdd the top buttom till you see the device reboot. With a little luck, it will booth properly after that.

Best of luck!