I recently did a factory reset by pressing and holding the power, home and volume up keys to get to the.. I think its called a bootloader? I dont really know but you can wipe the cache partition and clear data and reboot, which I did. I saw it on an website which I can't even find right now. But now whenever i long press the home key to get to the task manager the error Process com.android.systemui has stopped. I've done 3 factory resets to try to fix it but its still happening. Any help would be appreciated.