iPhone 3gs sound problem, jack, no sound, mutes, vibrates

	iPhone 3gs sound problem, jack, no sound, mutes, vibrates I've gotta problem with my iphone 3gs, namely, from yesterday it has started to 'mute' itself. The sound sound does not work, no ringin, no music, nothing. However, when I mute it (switch from a sound mode to vibration and back, it sometimes starts to work properly as shown on the video. The trick is that, even if it doesn't work, when entered sound options and try for example to lower the volume it starts to work only when I move the volume slider, when exit it works or not :) I read about a headphones jack problem, I tried to clean it, and no results. I tried to restore the settings and nothing... duno what happens to it. iOs 5.1 on board. Can I downgrade it somehow? It seems for the battery to drain faster with this iOs...	From: gregorsv Views: 0 0 ratings
	Time: 00:13	More in Autos & Vehicles