The phone on my HP Ipaq rw6800 with Windows Mobile 5, while working fine for some months, is not working properly - I can't hear or speak using the pda except through an earpiece. I suspect the problem may be linked to the FM radio - I started using it this week, but it doesn't seem to be working properly now, and the problems with the radio seem to have co-incided with the problems with the phone function. The other reason for suspecting the radio is that I've noticed that if I have the radio set for the earpiece, no sounds at all come through the speakers, even for screen taps, etc (even though these are turned on). When I switch the radio to speaker mode, the screen tap sounds start to work, but this seems to be unstable - after a while, the sounds stop working. I've tried to turn the radio completely off, but this doesn't seem to help. Am I on the wrong track? Have I got some setting wrong? Is it a software problem or a hardware problem?
I have seen a similar problem in other devices. Your description led to a suspicion about the earphone/mic jack. When you insert the lead, it displaces a switch that simultaneously turns the built-ins off and the external on. These can bend outwards or stick in the out position. (The "switch" I mention is usually a strip of metal you can see inside the socket.) Attempts to correct this are all at your own risk. You could try a drop of electrical cleaner and some plugging & unplugging.
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