Hi Oxygen,
I now have the same problem. I downloaded some ringtones into my friends LG8700, same as my model, via Bitpim. But after the second download, his phone never rebooted. It just flashes the TELUS entry image and nevers starts up. I have tried to re-establish connection via Bitpim to delete the new ringtones, but no luck.
My provider wants over 150$ to just look at it. Does anyone know how to re-establish, reset or flash programming so as to fix this problem? I purchased a used phone for my friend, since it was my fault, but would like to get this one working so things are'nt a total loss for me...