This has happened to me several times since owning iPhones (3GS, and now a 4). The problem has always been lint, or some other obstruction in the microswitch of the earphone jack. When you insert the earplugs into the jack, it closes, or opens, (I can't remember which) a small switch that diverts output from the speaker to the earphones. When some dirt or lint gets into that jack, it can do the same thing and divert the output from the speaker to the phones. If you have a sighted friend, they can look down into the jack (its lit with a blue LED at the bottom of the hole) and see if there's anything in there.
I've actually sucked out the lint with a good blast of air, either from my mouth or a can of compressed air and solved the problem that way. It may take some doing, but I'll bet this is your problem, and a can of compressed air is a good thing to have handy. Or, try sucking really hard on the jack (I'm not kidding). It may dislodge any junk that's in there keeping the microswitch open. good luck. -- You received this message because you are subscribed to the "VIPhone" Google Group. To search the VIPhone public archive, visit http://www.mail-archive.com/[email protected]/. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/viphone?hl=en.
