My phone makes a very annoying notification sound when the battery is fully charged. I've tried removing audio files from the \media folder, but it must somehow revert to a default audio file stored someplace else, because it always makes that sound when the battery reaches 100% charge. This is annoying not only because this sound wakes me up at night if I happen to forget to set my phone on silent when I leave it to charge overnight, but also because every once in a while, even disconnecting the phone from the charger doesn't make the sound stop, and it just keeps on going until I turn off the phone. I'm guessing this must be a bug in the Android OS (I'm running 2.3.3 on Galaxy S2). Was anyone able to get rid of this 'battery charged' notification sound? Many thanks in advance for any replies!