Speaker phone problem?

Just had this exact same problem, with the loud speaker being the default when i dial a number, even the car mode automatically came on and i haven't connected to a car cradle BUT it did happen after i charged the phone via the cigarette lighter in the van.
All i have done after reading an earlier post on here, is take the battery out while the phone was still ON, left it out for about a minute and put it back in and everything seems back to normal (so far). I'll post if the problem reappears.
I think they call this a soft reset.

Hi all !

I have been stuck for 2 weeks on this issue.

I have tried all those things :
- Switch off and then switch on the phone
- Remove and reinsert the battery
- Remove and reinsert the SIM Card
- Clean up the USB connector (and there were lots of dusts inside)
- Hard reset to the factory settings

Nothing has solved the problem.

BUT I have found a SOLUTION and also a process to see if you have the same problem as me :
1) Create a shortcut on your home screen and add this shortcut : Shortcut -> Parameter -> Car dock (the icon is a padlock)
2) Click on this shortcut and enable Auto start feature
3) A little car icon will appear in the status bar if there is a short circuit at that moment
4) Take your mini usb cable and plug it into the phone usb connector (without connecting the cable to an electrical outlet nor your PC, we don't want to charge the phone, in fact it doesn't matter but I advice you to not charge it during the process)
5) Now track if the car icon is present, if it is, just move up and down and left and right the cable to check if it's not a hardware short circuit like it is for me (!!). If the car icon appears and disappears during the process while you are moving the cable, then it's a hardware short circuit problem (nothing to do with some kind of software bug as mentioned by some people).

To fix the problem permanently you have 2 choices :
5.1) Take your phone back to the shop
5.2) My solution if you are a lazy man like I am : use the cable to twist correctly the male connector (the one inside the phone) to the correct position. For me the correct position was : lay down your phone on a table, screen upwards, you must twist the connector upwards too. The direction to twist the connector is from the bottom (the table) to the up (the screen) = If you take your phone in front of you and you are looking at the screen, twist the connector towards yourself.

I have fixed the problem this way.

I hope you will be able to fix it too.

Jérémy.

I am having the same problem HOWEVER I brought my phone back to the Carphone warehouse for repair, thinking that all ye nice people were making a valid point, all I wanted was a replacement alas the HTC guys inform me today that my HTC phone has a moisture problem and is not covered by warantee.  Now i have had this phone less then 3 months, my previous phone i had for nearly 4 years, i was reluctant to upgrade to a smart phone in the first place, i know for a fact i havent left it out in the rain, dropped it in a sink or a pint.  I'm currently writing up my thesis so i havent moved very far from my desk since i bought the precious thing!!  Does it not sound like a coincidence that I send back my phone with a little note saying i did some research and i think it may be a loose circuit connection apparently a common problem with HTC phones??? Does anyone have any suggestions, i am honestly out of options, i rang them back today stating i was'nt accepting a "moisture problem" as an excuse, i know myself having a smart phone for the first time, that i actually went to the bother of taking care of it, bought an entire protection kit and everything, i am incredibly annoyed with HTC and this treatment 

Dude why is there no cover on the USB port Can someone in HTC respond to how u can guarantee a phone with no protection against "lint" getting into a USB port which plainly does not have a 100% perfect connection with the circuit board?

I tried to make concessions to the connector and coordinate, found that the mode of the car to open and close all the time. When I left I pull the USB coordinates, and it is very gentle, ever since.