We hacked a Sprint Treo 650, but Fogle has a modified Bluetooth file for hacking Cingular and unlocked GSM models as well
1. Download a free program called FileZ from nosleep.net and install it on your Treo.
2. Download the patched BtManager.prc file from shadowmite.com and copy it to an SD card.
3. Remove the battery cover on your Treo and hit the reset button to do a soft reset.
4. Insert the SD card into the Treo and open FileZ. Navigate to the patched BtManager.prc file, choose “Copy” and select “Internal” as the destination.