First off, you’ll need a computer that has Bluetooth. If you already don’t, you can get a bluetooth USB adapter for cheap.
USB Bluetooth Adapter

You’ll also need a media converter program that is capable of converting mp3 to .amr. This is vital to placing a ringtone onto the phone. Also, it’s helpful if you get an audio editor to help get the right length of audio. If you put an entire song on there, it’ll take up a large portion of memory, and the LG600G has no memory card slot for expansion. I’d recommend using Audacity. It’s free, and it works great.

Audacity

Make sure you have the bluetooth on the computer set to visible, as well as the bluetooth on the phone.

Next, click on the “Add a device” option in the bluetooth menu on the computer. It will scan for any bluetooth devices, and the phone should show up.

When it prompts for a passkey, enter something simple. Using a passkey will help prevent unauthorized access to your phone.

Once your phone is connected, you’ll have the ability to send across images and sounds.

Now, once you’ve chosen the mp3 you’d like to put on there, you’ll need to shorten it to the right length for the ringtone. Once you’ve done this with whatever audio editor you chose, you can now convert it to .amr.

After converting the file over to .amr, right click the file and choose Send To, and then choose Bluetooth device. If you have multiple bluetooth devices, then you’ll have to choose the LG600G. Otherwise that will be the default device. Click next, and it will start to send it over.

However, you’ll need to authorize the transfer on the phone itself. This isn’t difficult, because as soon as the computer starts trying to send the file, the LG600G will beep, and then display “Allow File Access?”

Choose yes, and you get the file at a fairly decent speed.

This also applies to images. i.e. JPG, BMP, GIF, etc.

Right click the image, choose Send To, and Bluetooth device, and in no time you’ll have the picture on the phone.

~Side note, GIF’s still retain their animation, but at a lower frame rate.~