2006 SC 430 Bluetooth handsfree volume

[RichSC430]

Thanks to DrComputer's post about the 2006 GS: http://www.clublexus.com/forums/show...6&postcount=49

Even when I was speaking loudly, people could barely hear me on Bluetooth handsfree in my new SC 430 (Motorola V3 RAZR, Cingular). I experimented based on the above GS post, and here is how I adjusted the mic volume, with a bit more detail than the above post:

CAUTION: I read that the service menus have some setttings that can leave your system in a state that you do not want, so avoid pressing any on-screen controls not mentioned here. In general, it seems if you get to a page you don't like and there is not a "BACK" button, try turning your key to "LOCK." When you turn back to "ACC" or "ON," you should get the normal welcome screen.

Transmission in "Park." (Brake not required)
Turn key to "ACC." (Accessory mode) (Did not try in "ON" or with the engine running, might work.)
The nav screen needs to be open.
Press the "DISP" button under the nav screen.
Just inside the inset border, where the screen underneath is showing through, press the upper left and lower left corners six times: UL, LL, UL, LL, UL, LL. (Don't press the upper left and lower left corners of the SCREEN -- press farther in, inside the corners of the inset rectangle.)
A service menu will appear.
Press the green "MENU" button. A higher level menu appears.
Press the "BT Voice Quality Set" button.
Next to the "Send Voice Lv," use the "<" and ">" buttons to adjust the level down or up. Your initial level is probably 0, like mine was. I raised mine all the way to +5, apparently the maximum.
There is also an adjustment for the receiving (incoming) volume.
(You can only test the results later, when making a call.)
Press the green "MENU" button to go back to the higher menu.
If you want to make sure your setting was saved, you can press the "BT Voice Quality Set" button again. The numbers should be the same.
Turn your key to "LOCK." (This is the only obvious way I saw to get out of the service menu.)
You are done, and can try making calls.

I don't what the "voice profile" and associated numeric keypad entries do. Mine came set at 6. When I tried re-entering 6 on the numeric keypad, it returned the microphone and speaker volumes to 0.

Good luck! - Rich

(Other keywords: hands, free, microphone, faint, quiet, loud, phone, cell, telephone, SC430)