This is a common issue you might face while force restarts on a hard reset period. Actually, while hard resigning the Android system create a temporary cache partition to store information and all. A force restart or restart due to the low battery can lead to the dead screen. No matter which Android you are using. You can simply try clearing the cache. you can press the volume up+ power button and select wipe cache partition. once wiped, then try hard resetting the phone. Hope this may help. You can google for how to wipe cache partition on Android. Also, try booting the phone in [http://fixyourandroid.com/how-to/android-is-stuck-in-safe-mode/|safe mode] to ensure the problem is related to software and not a hardware component.