I too have had this problem. Have you tried unplugging and letting your phone die, then charging it while off until 100%? That is what I did for mine. Not sure what caused it, but it was only that one time for me.
One man's Brick is another man's weekend project, I Love This Sh*t!
Phone: MB886 Atrix HD Ghetto MAXX, OC'ed to 1.89Ghz, Philz Touch, SlimKAT Unofficial 4.4.2, 32Gb SD, aaargggh's Kernel, PurePerfomanceX
Tablet: Nook HD+ 32Gb, CWM 126.96.36.199, KitKat 4.4.2 cm-11-20140201-NIGHTLY-ovation, PurePerformanceX
PC: Win 8.1 Pro, ASUS MB, i7-3770k Overclocked to 5Ghz, Corsair H100i Water Cooled, 32Gb RAM, Dual GeForce GTX 295 GPU's
Other: Raspberry Pi w/Linux soon to have android something or other