Every time I upload a video from my phone to facebook, the video starts lagging, going backwards by a second, but the sound stays at the right time. I can't upload my singing videos as it starts out fine, then the timing of audio/video gets worse and worse as it goes on. I'm really disappointed with this, not to mention the fact that half the internal storage is taken up by system storage, and I can't move ANYTHING (including music, pictures, apps, and videos) onto my SD card (even though it's the correct one.)  I'm about to trash this phone.