My palm trio 650 will not send sound through the

You can use the Unlock code to Unlock Your Palm-One Tero 650 model Phone,You can get the Unlock code from here
Wickedunlock and follow the instructions and Unlock it step by step..
Palm One Treo 650 Unlocking InstructionsWarning : Do not enter any wrong unlock codes on your Palm One Treo 650 mobile phones. If you enter over a certain amount of wrong unlock codes on your Palm One Treo 650 mobile phone, your phone may get hard locked and sometimes become unusable.
1 - Switch ON your Palm One Treo 650 with an ACCEPTED SIM Card,
2 - Go to Menu and select "Phone Tool" or "Phone Application",
3 - Type on Virtual Keyboard *#*#CODE#,
4 - Select with PEN "Numer" and Palm One Treo 650 will show that it's unlocked now!

or

1 - Switch ON your Palm One Treo 650 with a NOT ACCEPTED SIM Card,
2 - Enter the Unlock Code we send to you.

or

1. Remove Palm One Treo 650 battery, unplug cable,
2. Switch ON your Palm One Treo 650 with a NOT ACCEPTED SIM Card,
3. 'Sim not allowed' is displayed, click OK,
4. Go to the dial pad, and dial *#*#CODE#,

CODE: The unique unlock code for your Palm One Treo 650.
ACCEPTED : We mean, to use a sim card from the network your Palm One Treo 650 is locked to.
NOT ACCEPTED : We mean, to use a sim card from a network other than the network your Palm One Treo 650 is locked to.

My Palm Treo 650 will not find my Motorola H555 bluetooth.

yes we can unlock just join me on yahoo id : cellularhut_rajan

make sure and have latest version of activesync

http://www.microsoft.com/windowsmobile/activesync/default.mspx

http://kb.palm.com/SRVS/CGI-BIN/WEBCGI.EXE?New,Kb=PalmSupportKB,ts=Palm_External2001,Case=obj(22948)

read that ...maybe it help.
Worst case, hard reset.

have you try this? :

Check out what is available on the Palm website: www.palmone.com

Go to support, downloads, then pick your model (Treo 650) /and/ your service provider.

The 650 seems to have a delicate headphone/mic jack. Dropping the phone, even gently, seems mess up that jack. I returned my first treo 650 as defective, and got a new one. The same thing happened to my new 650 after I simply compressed the phone in my breast coat pocket by holding my mail against my chest.

I can't get a new one because the replacement treo comes with no warranty of any kind. :(

My advice would be to find a PDA/phone repair service to repair the jack or diagnose the problem if it turns out not to be the jack.

sign up at mytreo.net I was able to get an unlock code program for my treo 600 there

How I uninstalled Palm Desktop for the 7135: Suggest this step: 1) Find your Palm files, all of them, most likely /Program Files/Palm, and make a copy of the folder, call it Palm Backup. That should leave all of your existing information as is, just in case 2) Using the control panel, find and remove Palm Desktop (Start, Control Panel, Add/Remove Applications) 3) Suggest you optionally reboot. 4) Now do the install of your new Palm Treo 650 software. This is what I did, and all is well. I had different problems when I decided to go back to my 7135. Seems that using the same techniques does NOT remove the PalmOne software, lots of residual modules, and even if I did a delete of the entire Palm directory, there must be links everywhere. The 650 has extraordinary capabilities, but in the end, I went back to my 7135.